[INFO] fetching crate aci_png 0.8.0-pre0...
[INFO] testing aci_png-0.8.0-pre0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate aci_png 0.8.0-pre0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate aci_png 0.8.0-pre0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aci_png 0.8.0-pre0
[INFO] finished tweaking crates.io crate aci_png 0.8.0-pre0
[INFO] tweaked toml for crates.io crate aci_png 0.8.0-pre0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding deflate v0.7.20 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded afi v0.8.0-pre0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55feb8b6a3e82b09904313dca4c072123ebade493e007ea8d562d9e2233cef36
[INFO] running `Command { std: "docker" "start" "-a" "55feb8b6a3e82b09904313dca4c072123ebade493e007ea8d562d9e2233cef36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55feb8b6a3e82b09904313dca4c072123ebade493e007ea8d562d9e2233cef36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55feb8b6a3e82b09904313dca4c072123ebade493e007ea8d562d9e2233cef36", kill_on_drop: false }`
[INFO] [stdout] 55feb8b6a3e82b09904313dca4c072123ebade493e007ea8d562d9e2233cef36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6116cec6bc1d1db84b6f577d788a18f9605fb563c6d4aeb998844832cbe2b0ea
[INFO] running `Command { std: "docker" "start" "-a" "6116cec6bc1d1db84b6f577d788a18f9605fb563c6d4aeb998844832cbe2b0ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling afi v0.8.0-pre0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "6116cec6bc1d1db84b6f577d788a18f9605fb563c6d4aeb998844832cbe2b0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6116cec6bc1d1db84b6f577d788a18f9605fb563c6d4aeb998844832cbe2b0ea", kill_on_drop: false }`
[INFO] [stdout] 6116cec6bc1d1db84b6f577d788a18f9605fb563c6d4aeb998844832cbe2b0ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d036681636bd0509e35c1a9c864551ef744ef67ec4df761b647926fcec8faeb3
[INFO] running `Command { std: "docker" "start" "-a" "d036681636bd0509e35c1a9c864551ef744ef67ec4df761b647926fcec8faeb3", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "d036681636bd0509e35c1a9c864551ef744ef67ec4df761b647926fcec8faeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d036681636bd0509e35c1a9c864551ef744ef67ec4df761b647926fcec8faeb3", kill_on_drop: false }`
[INFO] [stdout] d036681636bd0509e35c1a9c864551ef744ef67ec4df761b647926fcec8faeb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f5ead9397f1303f776315080c8ae9f3ee85b2a5b5a07d09a51acade9c723b2cd
[INFO] running `Command { std: "docker" "start" "-a" "f5ead9397f1303f776315080c8ae9f3ee85b2a5b5a07d09a51acade9c723b2cd", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/png.rs:159:15
[INFO] [stderr]     |
[INFO] [stderr] 159 |         fn from_f32(f32) -> Self;
[INFO] [stderr]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:224:2
[INFO] [stderr]     |
[INFO] [stderr] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:261:16
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:262:22
[INFO] [stderr]     |
[INFO] [stderr] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:266:10
[INFO] [stderr]     |
[INFO] [stderr] 266 |        buf: try!(buf.vec()),
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:273:12
[INFO] [stderr]     |
[INFO] [stderr] 273 |     let hdr = try!(read_header(reader));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:333:2
[INFO] [stderr]     |
[INFO] [stderr] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:343:2
[INFO] [stderr]     |
[INFO] [stderr] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:361:16
[INFO] [stderr]     |
[INFO] [stderr] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:372:14
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |                 try!(readcheck_crc(dc));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:394:5
[INFO] [stderr]     |
[INFO] [stderr] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:405:6
[INFO] [stderr]     |
[INFO] [stderr] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:408:6
[INFO] [stderr]     |
[INFO] [stderr] 408 |                     try!(readcheck_crc(dc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:411:6
[INFO] [stderr]     |
[INFO] [stderr] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:417:9
[INFO] [stderr]     |
[INFO] [stderr] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:476:35
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:477:36
[INFO] [stderr]     |
[INFO] [stderr] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:479:24
[INFO] [stderr]     |
[INFO] [stderr] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:498:5
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:501:5
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:557:6
[INFO] [stderr]     |
[INFO] [stderr] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:560:6
[INFO] [stderr]     |
[INFO] [stderr] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/png.rs:665:12
[INFO] [stderr]     |
[INFO] [stderr] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stderr]     |               ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stderr] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:671:3
[INFO] [stderr]     |
[INFO] [stderr] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:673:3
[INFO] [stderr]     |
[INFO] [stderr] 673 |         try!(readcheck_crc(dc));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:674:10
[INFO] [stderr]     |
[INFO] [stderr] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:806:2
[INFO] [stderr]     |
[INFO] [stderr] 806 |     try!(write_header(ec));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:810:2
[INFO] [stderr]     |
[INFO] [stderr] 810 |     try!(write_image_data(ec));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:813:2
[INFO] [stderr]     |
[INFO] [stderr] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:814:2
[INFO] [stderr]     |
[INFO] [stderr] 814 |     try!(ec.stream.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:808:3
[INFO] [stderr]     |
[INFO] [stderr] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:823:2
[INFO] [stderr]     |
[INFO] [stderr] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:824:2
[INFO] [stderr]     |
[INFO] [stderr] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:825:2
[INFO] [stderr]     |
[INFO] [stderr] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:826:2
[INFO] [stderr]     |
[INFO] [stderr] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:835:2
[INFO] [stderr]     |
[INFO] [stderr] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:838:2
[INFO] [stderr]     |
[INFO] [stderr] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:857:2
[INFO] [stderr]     |
[INFO] [stderr] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:858:2
[INFO] [stderr]     |
[INFO] [stderr] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:859:2
[INFO] [stderr]     |
[INFO] [stderr] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:863:2
[INFO] [stderr]     |
[INFO] [stderr] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:877:34
[INFO] [stderr]     |
[INFO] [stderr] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:923:3
[INFO] [stderr]     |
[INFO] [stderr] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:924:3
[INFO] [stderr]     |
[INFO] [stderr] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:925:3
[INFO] [stderr]     |
[INFO] [stderr] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:926:3
[INFO] [stderr]     |
[INFO] [stderr] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:918:11
[INFO] [stderr]     |
[INFO] [stderr] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/png.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/png.rs:112:26
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stderr]     |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:86:14
[INFO] [stderr]    |
[INFO] [stderr] 86 |     InvalidData(&'static str),
[INFO] [stderr]    |     ----------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 86 |     InvalidData(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |     InvalidArg(&'static str),
[INFO] [stderr]    |     ---------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 87 |     InvalidArg(()),
[INFO] [stderr]    |                ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Unsupported(&'static str),
[INFO] [stderr]    |     ----------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Unsupported(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:89:11
[INFO] [stderr]    |
[INFO] [stderr] 89 |     Internal(&'static str),
[INFO] [stderr]    |     -------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 89 |     Internal(()),
[INFO] [stderr]    |              ~~
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stderr]    --> src/png.rs:156:6
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub trait Sample : Copy {
[INFO] [stderr]     |               ------ associated items in this trait
[INFO] [stderr] 156 |         fn zero() -> Self;
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 157 |         fn max_value() -> Self;
[INFO] [stderr] 158 |         fn as_f32(self) -> f32;
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 159 |         fn from_f32(f32) -> Self;
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `aci_png` (lib) generated 57 warnings (run `cargo fix --lib -p aci_png` to apply 3 suggestions)
[INFO] [stderr] warning: `aci_png` (lib test) generated 57 warnings (57 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aci_png-1799b56f5d761ac6)
[INFO] [stderr]    Doc-tests aci_png
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/png.rs:665:12
[INFO] [stderr]     |
[INFO] [stderr] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stderr]     |               ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stderr] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5ead9397f1303f776315080c8ae9f3ee85b2a5b5a07d09a51acade9c723b2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5ead9397f1303f776315080c8ae9f3ee85b2a5b5a07d09a51acade9c723b2cd", kill_on_drop: false }`
[INFO] [stdout] f5ead9397f1303f776315080c8ae9f3ee85b2a5b5a07d09a51acade9c723b2cd
[INFO] testing aci_png-0.8.0-pre0 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate aci_png 0.8.0-pre0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate aci_png 0.8.0-pre0 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aci_png 0.8.0-pre0
[INFO] finished tweaking crates.io crate aci_png 0.8.0-pre0
[INFO] tweaked toml for crates.io crate aci_png 0.8.0-pre0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding deflate v0.7.20 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 075958d81602422495dfdb9ad026147dfe6c2c6c1001d5df3db652b44bc3eb20
[INFO] running `Command { std: "docker" "start" "-a" "075958d81602422495dfdb9ad026147dfe6c2c6c1001d5df3db652b44bc3eb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "075958d81602422495dfdb9ad026147dfe6c2c6c1001d5df3db652b44bc3eb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075958d81602422495dfdb9ad026147dfe6c2c6c1001d5df3db652b44bc3eb20", kill_on_drop: false }`
[INFO] [stdout] 075958d81602422495dfdb9ad026147dfe6c2c6c1001d5df3db652b44bc3eb20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59205e886418dce3fd16cfb298f797db7839601a1ee7690ef14a0b61cd9c829f
[INFO] running `Command { std: "docker" "start" "-a" "59205e886418dce3fd16cfb298f797db7839601a1ee7690ef14a0b61cd9c829f", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling afi v0.8.0-pre0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "59205e886418dce3fd16cfb298f797db7839601a1ee7690ef14a0b61cd9c829f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59205e886418dce3fd16cfb298f797db7839601a1ee7690ef14a0b61cd9c829f", kill_on_drop: false }`
[INFO] [stdout] 59205e886418dce3fd16cfb298f797db7839601a1ee7690ef14a0b61cd9c829f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f505252efaca0ffdf17688e183a37eb16bc1c2679a1de704c89418b7c4821d6
[INFO] running `Command { std: "docker" "start" "-a" "1f505252efaca0ffdf17688e183a37eb16bc1c2679a1de704c89418b7c4821d6", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aci_png v0.8.0-pre0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/png.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:224:2
[INFO] [stdout]     |
[INFO] [stdout] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:251:5
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |        buf: try!(buf.vec()),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let hdr = try!(read_header(reader));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:333:2
[INFO] [stdout]     |
[INFO] [stdout] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:343:2
[INFO] [stdout]     |
[INFO] [stdout] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:361:16
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:383:5
[INFO] [stdout]     |
[INFO] [stdout] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |                 try!(readcheck_crc(dc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:405:6
[INFO] [stdout]     |
[INFO] [stdout] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:408:6
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(readcheck_crc(dc));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:411:6
[INFO] [stdout]     |
[INFO] [stdout] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:476:35
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:477:36
[INFO] [stdout]     |
[INFO] [stdout] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:479:24
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:498:5
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:560:6
[INFO] [stdout]     |
[INFO] [stdout] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/png.rs:665:12
[INFO] [stdout]     |
[INFO] [stdout] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stdout]     |               ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stdout] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:671:3
[INFO] [stdout]     |
[INFO] [stdout] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:673:3
[INFO] [stdout]     |
[INFO] [stdout] 673 |         try!(readcheck_crc(dc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:674:10
[INFO] [stdout]     |
[INFO] [stdout] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:806:2
[INFO] [stdout]     |
[INFO] [stdout] 806 |     try!(write_header(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:810:2
[INFO] [stdout]     |
[INFO] [stdout] 810 |     try!(write_image_data(ec));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:813:2
[INFO] [stdout]     |
[INFO] [stdout] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:814:2
[INFO] [stdout]     |
[INFO] [stdout] 814 |     try!(ec.stream.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:808:3
[INFO] [stdout]     |
[INFO] [stdout] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:823:2
[INFO] [stdout]     |
[INFO] [stdout] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:824:2
[INFO] [stdout]     |
[INFO] [stdout] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:825:2
[INFO] [stdout]     |
[INFO] [stdout] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:826:2
[INFO] [stdout]     |
[INFO] [stdout] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:835:2
[INFO] [stdout]     |
[INFO] [stdout] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:838:2
[INFO] [stdout]     |
[INFO] [stdout] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:857:2
[INFO] [stdout]     |
[INFO] [stdout] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:858:2
[INFO] [stdout]     |
[INFO] [stdout] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:859:2
[INFO] [stdout]     |
[INFO] [stdout] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:863:2
[INFO] [stdout]     |
[INFO] [stdout] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:877:34
[INFO] [stdout]     |
[INFO] [stdout] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:923:3
[INFO] [stdout]     |
[INFO] [stdout] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:924:3
[INFO] [stdout]     |
[INFO] [stdout] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:925:3
[INFO] [stdout]     |
[INFO] [stdout] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:926:3
[INFO] [stdout]     |
[INFO] [stdout] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/png.rs:918:11
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/png.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/png.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidData(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(&'static str),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidArg(()),
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Unsupported(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/png.rs:89:11
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(&'static str),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Internal(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stdout]    --> src/png.rs:156:6
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub trait Sample : Copy {
[INFO] [stdout]     |               ------ associated items in this trait
[INFO] [stdout] 156 |         fn zero() -> Self;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 157 |         fn max_value() -> Self;
[INFO] [stdout] 158 |         fn as_f32(self) -> f32;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 159 |         fn from_f32(f32) -> Self;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 57 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "1f505252efaca0ffdf17688e183a37eb16bc1c2679a1de704c89418b7c4821d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f505252efaca0ffdf17688e183a37eb16bc1c2679a1de704c89418b7c4821d6", kill_on_drop: false }`
[INFO] [stdout] 1f505252efaca0ffdf17688e183a37eb16bc1c2679a1de704c89418b7c4821d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3932a9421ff378ec27000bbc4b9c362f96975eba6050b976285869b5ee1fe85
[INFO] running `Command { std: "docker" "start" "-a" "d3932a9421ff378ec27000bbc4b9c362f96975eba6050b976285869b5ee1fe85", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/png.rs:159:15
[INFO] [stderr]     |
[INFO] [stderr] 159 |         fn from_f32(f32) -> Self;
[INFO] [stderr]     |                     ^^^ help: try naming the parameter or explicitly ignoring it: `_: f32`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:224:2
[INFO] [stderr]     |
[INFO] [stderr] 224 |     try!(reader.read_exact(&mut buf));
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     Ok(try!(read_chunks(reader, &[])).0)
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:261:16
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let dc = &mut try!(init_decoder(reader, size_of::<T>() * 8));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:262:22
[INFO] [stderr]     |
[INFO] [stderr] 262 |     let (buf, chunks) = try!(decode(dc, chunk_names));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:266:10
[INFO] [stderr]     |
[INFO] [stderr] 266 |        buf: try!(buf.vec()),
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:273:12
[INFO] [stderr]     |
[INFO] [stderr] 273 |     let hdr = try!(read_header(reader));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:333:2
[INFO] [stderr]     |
[INFO] [stderr] 333 |     try!(dc.stream.read_exact(&mut dc.chunk_lentype[0..8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:343:2
[INFO] [stderr]     |
[INFO] [stderr] 343 |     try!(dc.stream.read_exact(&mut tmp));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:361:16
[INFO] [stderr]     |
[INFO] [stderr] 361 |     let mut len = try!(read_chunkmeta(dc));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:372:14
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 result = try!(read_idat_stream(dc, &mut len, &palette[..]));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |                 try!(dc.stream.read_exact(&mut palette));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |                 try!(readcheck_crc(dc));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:394:5
[INFO] [stderr]     |
[INFO] [stderr] 394 |                 try!(dc.stream.read_exact(&mut crc));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:405:6
[INFO] [stderr]     |
[INFO] [stderr] 405 |                     try!(dc.stream.read_exact(&mut data));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:408:6
[INFO] [stderr]     |
[INFO] [stderr] 408 |                     try!(readcheck_crc(dc));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:411:6
[INFO] [stderr]     |
[INFO] [stderr] 411 |                     try!(dc.stream.seek(SeekFrom::Current(len as i64 + 4)));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:417:9
[INFO] [stderr]     |
[INFO] [stderr] 417 |         len = try!(read_chunkmeta(dc));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:476:35
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let (convert8, _0, _1, _2, _3) = try!(converter::<u8>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:477:36
[INFO] [stderr]     |
[INFO] [stderr] 477 |     let (convert16, c0, c1, c2, c3) = try!(converter::<u16>(dc.src_fmt, ColFmt::RGBA));
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:479:24
[INFO] [stderr]     |
[INFO] [stderr] 479 |     let compressed_data = try!(read_idat_chunks(dc, len));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:498:5
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 try!(zlib.read_exact(&mut cline[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:501:5
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:557:6
[INFO] [stderr]     |
[INFO] [stderr] 557 |                     try!(zlib.read_exact(&mut cline[..]));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:560:6
[INFO] [stderr]     |
[INFO] [stderr] 560 |                     try!(recon(&mut cline[1..], &pline[1..], filter_type, filter_step));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/png.rs:665:12
[INFO] [stderr]     |
[INFO] [stderr] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stderr]     |               ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stderr] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:671:3
[INFO] [stderr]     |
[INFO] [stderr] 671 |         try!(dc.stream.read_exact(&mut all[start..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:673:3
[INFO] [stderr]     |
[INFO] [stderr] 673 |         try!(readcheck_crc(dc));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:674:10
[INFO] [stderr]     |
[INFO] [stderr] 674 |         *len = try!(read_chunkmeta(dc));    // next chunk's len and type
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:806:2
[INFO] [stderr]     |
[INFO] [stderr] 806 |     try!(write_header(ec));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:810:2
[INFO] [stderr]     |
[INFO] [stderr] 810 |     try!(write_image_data(ec));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:813:2
[INFO] [stderr]     |
[INFO] [stderr] 813 |     try!(ec.stream.write_all(iend));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:814:2
[INFO] [stderr]     |
[INFO] [stderr] 814 |     try!(ec.stream.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:808:3
[INFO] [stderr]     |
[INFO] [stderr] 808 |         try!(write_custom_chunk(ec, chunk));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:823:2
[INFO] [stderr]     |
[INFO] [stderr] 823 |     try!(ec.stream.write_all(&PNG_FILE_HEADER[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:824:2
[INFO] [stderr]     |
[INFO] [stderr] 824 |     try!(ec.stream.write_all(b"\0\0\0\x0dIHDR"));     crc.put(b"IHDR");
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:825:2
[INFO] [stderr]     |
[INFO] [stderr] 825 |     try!(ec.stream.write_all(width));                 crc.put(width);
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:826:2
[INFO] [stderr]     |
[INFO] [stderr] 826 |     try!(ec.stream.write_all(height));                crc.put(height);
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:835:2
[INFO] [stderr]     |
[INFO] [stderr] 835 |     try!(ec.stream.write_all(&tmp));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:838:2
[INFO] [stderr]     |
[INFO] [stderr] 838 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:857:2
[INFO] [stderr]     |
[INFO] [stderr] 857 |     try!(ec.stream.write_all(&u32_to_be(chunk.data.len() as u32)[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:858:2
[INFO] [stderr]     |
[INFO] [stderr] 858 |     try!(ec.stream.write_all(&chunk.name[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:859:2
[INFO] [stderr]     |
[INFO] [stderr] 859 |     try!(ec.stream.write_all(&chunk.data[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:863:2
[INFO] [stderr]     |
[INFO] [stderr] 863 |     try!(ec.stream.write_all(&crc.finish_be()[..]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:877:34
[INFO] [stderr]     |
[INFO] [stderr] 877 |     let (convert, c0, c1, c2, c3) = try!(converter(ColFmt::RGBA, 
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:923:3
[INFO] [stderr]     |
[INFO] [stderr] 923 |         try!(ec.stream.write_all(&u32_to_be(n as u32)[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:924:3
[INFO] [stderr]     |
[INFO] [stderr] 924 |         try!(ec.stream.write_all(b"IDAT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:925:3
[INFO] [stderr]     |
[INFO] [stderr] 925 |         try!(ec.stream.write_all(&compressed[..n]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:926:3
[INFO] [stderr]     |
[INFO] [stderr] 926 |         try!(ec.stream.write_all(crc));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/png.rs:918:11
[INFO] [stderr]     |
[INFO] [stderr] 918 |         let n = try!(compressed_data.read(&mut compressed[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/png.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is an object-safe trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/png.rs:112:26
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Error::Io(ref e) => e.description(),
[INFO] [stderr]     |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:86:14
[INFO] [stderr]    |
[INFO] [stderr] 86 |     InvalidData(&'static str),
[INFO] [stderr]    |     ----------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 86 |     InvalidData(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |     InvalidArg(&'static str),
[INFO] [stderr]    |     ---------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 87 |     InvalidArg(()),
[INFO] [stderr]    |                ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Unsupported(&'static str),
[INFO] [stderr]    |     ----------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Unsupported(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/png.rs:89:11
[INFO] [stderr]    |
[INFO] [stderr] 89 |     Internal(&'static str),
[INFO] [stderr]    |     -------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 89 |     Internal(()),
[INFO] [stderr]    |              ~~
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `zero`, `as_f32`, and `from_f32` are never used
[INFO] [stderr]    --> src/png.rs:156:6
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub trait Sample : Copy {
[INFO] [stderr]     |               ------ associated items in this trait
[INFO] [stderr] 156 |         fn zero() -> Self;
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 157 |         fn max_value() -> Self;
[INFO] [stderr] 158 |         fn as_f32(self) -> f32;
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 159 |         fn from_f32(f32) -> Self;
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `aci_png` (lib) generated 57 warnings (run `cargo fix --lib -p aci_png` to apply 3 suggestions)
[INFO] [stderr] warning: `aci_png` (lib test) generated 57 warnings (57 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aci_png-1799b56f5d761ac6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests aci_png
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/png.rs:665:12
[INFO] [stderr]     |
[INFO] [stderr] 665 |     -> Result<(Vec<u8>), Error>
[INFO] [stderr]     |               ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 665 -     -> Result<(Vec<u8>), Error>
[INFO] [stderr] 665 +     -> Result<Vec<u8>, Error>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d3932a9421ff378ec27000bbc4b9c362f96975eba6050b976285869b5ee1fe85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3932a9421ff378ec27000bbc4b9c362f96975eba6050b976285869b5ee1fe85", kill_on_drop: false }`
[INFO] [stdout] d3932a9421ff378ec27000bbc4b9c362f96975eba6050b976285869b5ee1fe85
