[INFO] fetching crate lzw 0.10.0...
[INFO] checking lzw-0.10.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate lzw 0.10.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lzw 0.10.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lzw 0.10.0
[INFO] finished tweaking crates.io crate lzw 0.10.0
[INFO] tweaked toml for crates.io crate lzw 0.10.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73309e5ca402fb6fcbca7b9f6c8917dae00c61b2461a2b05834f794254f0fb28
[INFO] running `Command { std: "docker" "start" "-a" "73309e5ca402fb6fcbca7b9f6c8917dae00c61b2461a2b05834f794254f0fb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73309e5ca402fb6fcbca7b9f6c8917dae00c61b2461a2b05834f794254f0fb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73309e5ca402fb6fcbca7b9f6c8917dae00c61b2461a2b05834f794254f0fb28", kill_on_drop: false }`
[INFO] [stdout] 73309e5ca402fb6fcbca7b9f6c8917dae00c61b2461a2b05834f794254f0fb28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ed4dfcc1099bda41fc435f366cba43f2dee22cb27386748ab27b5ac5b0c94b3
[INFO] running `Command { std: "docker" "start" "-a" "3ed4dfcc1099bda41fc435f366cba43f2dee22cb27386748ab27b5ac5b0c94b3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking lzw v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:183:29
[INFO] [stdout]     |
[INFO] [stdout] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:183:29
[INFO] [stdout]     |
[INFO] [stdout] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:181:39
[INFO] [stdout]     |
[INFO] [stdout] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:181:39
[INFO] [stdout]     |
[INFO] [stdout] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:185:39
[INFO] [stdout]     |
[INFO] [stdout] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:185:39
[INFO] [stdout]     |
[INFO] [stdout] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 | / define_decoder_struct!{
[INFO] [stdout] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stdout] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stdout] 217 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_decoder_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     try!(w.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     try!(w.flush());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:351:13
[INFO] [stdout]     |
[INFO] [stdout] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:383:9
[INFO] [stdout]     |
[INFO] [stdout] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:351:13
[INFO] [stdout]     |
[INFO] [stdout] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:383:9
[INFO] [stdout]     |
[INFO] [stdout] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 | / define_bit_writers!{
[INFO] [stdout] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stdout] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stdout] 177 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_bit_writers` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lzw.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |               try!(self.write_bits(0, missing));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 | / define_bit_writers!{
[INFO] [stdout] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stdout] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stdout] 177 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_bit_writers` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 | / define_bit_writers!{
[INFO] [stdout] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stdout] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stdout] 177 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_bit_writers` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |               try!(self.write_bits(0, missing));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 | / define_bit_writers!{
[INFO] [stdout] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stdout] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stdout] 177 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `define_bit_writers` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bitstream.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lzw.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lzw.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> examples/lzw-compress.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut encoder = try!(
[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]   --> examples/lzw-compress.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 try!(encoder.encode_bytes(buf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/lzw-compress.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 let buf = try!(stdin.fill_buf());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/lzw-decompress.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 try!(stdout.write_all(bytes));
[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]   --> examples/lzw-decompress.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let buf = try!(stdin.fill_buf());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/lzw-decompress.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 let (len, bytes) = try!(decoder.decode_bytes(buf));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3ed4dfcc1099bda41fc435f366cba43f2dee22cb27386748ab27b5ac5b0c94b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ed4dfcc1099bda41fc435f366cba43f2dee22cb27386748ab27b5ac5b0c94b3", kill_on_drop: false }`
[INFO] [stdout] 3ed4dfcc1099bda41fc435f366cba43f2dee22cb27386748ab27b5ac5b0c94b3