[INFO] fetching crate aci_png 0.8.0-pre0...
[INFO] testing aci_png-0.8.0-pre0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate aci_png 0.8.0-pre0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate aci_png 0.8.0-pre0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-100/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f798adbfea8722691db1f92d1c706c42bb13ddb15813308a08d49256ec2be62f
[INFO] running `Command { std: "docker" "start" "-a" "f798adbfea8722691db1f92d1c706c42bb13ddb15813308a08d49256ec2be62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f798adbfea8722691db1f92d1c706c42bb13ddb15813308a08d49256ec2be62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f798adbfea8722691db1f92d1c706c42bb13ddb15813308a08d49256ec2be62f", kill_on_drop: false }`
[INFO] [stdout] f798adbfea8722691db1f92d1c706c42bb13ddb15813308a08d49256ec2be62f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efec5e79f5b57776fd63f460496a02c9e1d572bb9d9cb1544098dd610bdf4886
[INFO] running `Command { std: "docker" "start" "-a" "efec5e79f5b57776fd63f460496a02c9e1d572bb9d9cb1544098dd610bdf4886", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling afi v0.8.0-pre0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling inflate v0.4.5
[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]     = note: `#[warn(anonymous_parameters)]` on by default
[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] 
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 116 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: 52 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "efec5e79f5b57776fd63f460496a02c9e1d572bb9d9cb1544098dd610bdf4886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efec5e79f5b57776fd63f460496a02c9e1d572bb9d9cb1544098dd610bdf4886", kill_on_drop: false }`
[INFO] [stdout] efec5e79f5b57776fd63f460496a02c9e1d572bb9d9cb1544098dd610bdf4886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c296b6fe5bd1b8a205d15eb102669788a733de9b229565b0f2a46c03de55e3e9
[INFO] running `Command { std: "docker" "start" "-a" "c296b6fe5bd1b8a205d15eb102669788a733de9b229565b0f2a46c03de55e3e9", kill_on_drop: false }`
[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]     = note: `#[warn(anonymous_parameters)]` on by default
[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] 
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 116 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: 52 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]     = note: `#[warn(anonymous_parameters)]` on by default
[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] 
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout] 116 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: 52 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/aci_png-68ac72bf54a22bc9)
[INFO] running `Command { std: "docker" "inspect" "c296b6fe5bd1b8a205d15eb102669788a733de9b229565b0f2a46c03de55e3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c296b6fe5bd1b8a205d15eb102669788a733de9b229565b0f2a46c03de55e3e9", kill_on_drop: false }`
[INFO] [stdout] c296b6fe5bd1b8a205d15eb102669788a733de9b229565b0f2a46c03de55e3e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b1a11dd494bf8c5b6b89fd24bd6b2e819a980fb39531c840ee631888a0a5ab2
[INFO] running `Command { std: "docker" "start" "-a" "8b1a11dd494bf8c5b6b89fd24bd6b2e819a980fb39531c840ee631888a0a5ab2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     = note: `#[warn(anonymous_parameters)]` on by default
[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] 
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[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] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 116 -     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr] 116 +     fn cause(&self) -> Option<&dyn std::error::Error> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `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: `aci_png` (lib) generated 52 warnings
[INFO] [stderr] warning: `aci_png` (lib test) generated 52 warnings (52 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aci_png-68ac72bf54a22bc9)
[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]    --> /opt/rustwide/workdir/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" "8b1a11dd494bf8c5b6b89fd24bd6b2e819a980fb39531c840ee631888a0a5ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1a11dd494bf8c5b6b89fd24bd6b2e819a980fb39531c840ee631888a0a5ab2", kill_on_drop: false }`
[INFO] [stdout] 8b1a11dd494bf8c5b6b89fd24bd6b2e819a980fb39531c840ee631888a0a5ab2