[INFO] crate lzw 0.10.0 is already in cache
[INFO] testing lzw-0.10.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate lzw 0.10.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate lzw 0.10.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c59d33d4b42917a88c3c03eda8422ce949594e3306c49c240f270e470d77a38e
[INFO] running `"docker" "start" "-a" "c59d33d4b42917a88c3c03eda8422ce949594e3306c49c240f270e470d77a38e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lzw v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:181:39
[INFO] [stderr]     |
[INFO] [stderr] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:185:39
[INFO] [stderr]     |
[INFO] [stderr] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:337:17
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:359:5
[INFO] [stderr]     |
[INFO] [stderr] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     try!(w.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:423:17
[INFO] [stderr]     |
[INFO] [stderr] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |               try!(self.write_bits(0, missing));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/lzw.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "c59d33d4b42917a88c3c03eda8422ce949594e3306c49c240f270e470d77a38e"`
[INFO] running `"docker" "rm" "-f" "c59d33d4b42917a88c3c03eda8422ce949594e3306c49c240f270e470d77a38e"`
[INFO] [stdout] c59d33d4b42917a88c3c03eda8422ce949594e3306c49c240f270e470d77a38e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b421a43e3a07c130929862b11cd307bb3a8cfbff405e94e351016e8aa4f2629a
[INFO] running `"docker" "start" "-a" "b421a43e3a07c130929862b11cd307bb3a8cfbff405e94e351016e8aa4f2629a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lzw v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:181:39
[INFO] [stderr]     |
[INFO] [stderr] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:185:39
[INFO] [stderr]     |
[INFO] [stderr] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:337:17
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:359:5
[INFO] [stderr]     |
[INFO] [stderr] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     try!(w.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:423:17
[INFO] [stderr]     |
[INFO] [stderr] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |               try!(self.write_bits(0, missing));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/lzw.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> examples/lzw-compress.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let mut encoder = try!(
[INFO] [stderr]   |                           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-compress.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 let buf = try!(stdin.fill_buf());
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-compress.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 try!(encoder.encode_bytes(buf));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:181:39
[INFO] [stderr]     |
[INFO] [stderr] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:185:39
[INFO] [stderr]     |
[INFO] [stderr] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:337:17
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:359:5
[INFO] [stderr]     |
[INFO] [stderr] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     try!(w.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:423:17
[INFO] [stderr]     |
[INFO] [stderr] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |               try!(self.write_bits(0, missing));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 let buf = try!(stdin.fill_buf());
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:22:36
[INFO] [stderr]    |
[INFO] [stderr] 22 |                 let (len, bytes) = try!(decoder.decode_bytes(buf));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |                 try!(stdout.write_all(bytes));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/lzw.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "b421a43e3a07c130929862b11cd307bb3a8cfbff405e94e351016e8aa4f2629a"`
[INFO] running `"docker" "rm" "-f" "b421a43e3a07c130929862b11cd307bb3a8cfbff405e94e351016e8aa4f2629a"`
[INFO] [stdout] b421a43e3a07c130929862b11cd307bb3a8cfbff405e94e351016e8aa4f2629a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb65f832360383382a8af906f54ff75273f79f1e8e9e328b2079406c8d26772f
[INFO] running `"docker" "start" "-a" "bb65f832360383382a8af906f54ff75273f79f1e8e9e328b2079406c8d26772f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:181:39
[INFO] [stderr]     |
[INFO] [stderr] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:185:39
[INFO] [stderr]     |
[INFO] [stderr] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:337:17
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:359:5
[INFO] [stderr]     |
[INFO] [stderr] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     try!(w.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:423:17
[INFO] [stderr]     |
[INFO] [stderr] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |               try!(self.write_bits(0, missing));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/lzw.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> examples/lzw-compress.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let mut encoder = try!(
[INFO] [stderr]   |                           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-compress.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 let buf = try!(stdin.fill_buf());
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-compress.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 try!(encoder.encode_bytes(buf));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:181:39
[INFO] [stderr]     |
[INFO] [stderr] 181 |                               let cha = try!(self.table.reconstruct(prev))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                               try!(self.table.reconstruct(Some(code)))
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:185:39
[INFO] [stderr]     |
[INFO] [stderr] 185 |                               let cha = try!(self.table.reconstruct(Some(code)))[0];
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 | / define_decoder_struct!{
[INFO] [stderr] 215 | |     Decoder, 0, #[doc = "Decoder for a LZW compressed stream (this algorithm is used for GIF files)."];
[INFO] [stderr] 216 | |     DecoderEarlyChange, 1, #[doc = "Decoder for a LZW compressed stream using an “early change” algorithm (used in TIFF files)."];
[INFO] [stderr] 217 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:337:17
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 try!(w.write_bits(code, code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |             try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(w.write_bits(code, code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:359:5
[INFO] [stderr]     |
[INFO] [stderr] 359 |     try!(w.write_bits(dict.end_code(), code_size));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     try!(w.flush());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(w.write_bits(dict.clear_code(), code_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(w.write_bits(code, *code_size));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lzw.rs:423:17
[INFO] [stderr]     |
[INFO] [stderr] 423 |                 try!(w.write_bits(dict.clear_code(), *code_size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |                   try!(self.write_bits(byte as u16, 8))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |               try!(self.write_bits(0, missing));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 | / define_bit_writers!{
[INFO] [stderr] 175 | |     LsbWriter, #[doc = "Writes bits to a byte stream, LSB first."];
[INFO] [stderr] 176 | |     MsbWriter, #[doc = "Writes bits to a byte stream, MSB first."];
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             try!(self.w.write_all(&[self.acc as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/bitstream.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             try!(self.w.write_all(&[(self.acc >> 24) as u8]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/lzw.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 let buf = try!(stdin.fill_buf());
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:22:36
[INFO] [stderr]    |
[INFO] [stderr] 22 |                 let (len, bytes) = try!(decoder.decode_bytes(buf));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> examples/lzw-decompress.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |                 try!(stdout.write_all(bytes));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lzw-fa6c243493a998da
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lzw::round_trip ... ok
[INFO] [stderr]    Doc-tests lzw
[INFO] [stdout] test bitstream::test::reader_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bb65f832360383382a8af906f54ff75273f79f1e8e9e328b2079406c8d26772f"`
[INFO] running `"docker" "rm" "-f" "bb65f832360383382a8af906f54ff75273f79f1e8e9e328b2079406c8d26772f"`
[INFO] [stdout] bb65f832360383382a8af906f54ff75273f79f1e8e9e328b2079406c8d26772f