[INFO] crate lzw 0.10.0 is already in cache
[INFO] testing lzw-0.10.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate lzw 0.10.0 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate lzw 0.10.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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 work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 236d13f548e6dfd1721dbcc814c1aa87a7500cd7fec2d08a193b3be529c62de0
[INFO] running `"docker" "start" "-a" "236d13f548e6dfd1721dbcc814c1aa87a7500cd7fec2d08a193b3be529c62de0"`
[INFO] [stderr]    Compiling lzw v0.10.0 (/opt/rustwide/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "236d13f548e6dfd1721dbcc814c1aa87a7500cd7fec2d08a193b3be529c62de0"`
[INFO] running `"docker" "rm" "-f" "236d13f548e6dfd1721dbcc814c1aa87a7500cd7fec2d08a193b3be529c62de0"`
[INFO] [stdout] 236d13f548e6dfd1721dbcc814c1aa87a7500cd7fec2d08a193b3be529c62de0
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 989dd80a364a7419aa8a74b0068d64f4410279e944acab32be34ae73ba1ad7f7
[INFO] running `"docker" "start" "-a" "989dd80a364a7419aa8a74b0068d64f4410279e944acab32be34ae73ba1ad7f7"`
[INFO] [stderr]    Compiling lzw v0.10.0 (/opt/rustwide/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "989dd80a364a7419aa8a74b0068d64f4410279e944acab32be34ae73ba1ad7f7"`
[INFO] running `"docker" "rm" "-f" "989dd80a364a7419aa8a74b0068d64f4410279e944acab32be34ae73ba1ad7f7"`
[INFO] [stdout] 989dd80a364a7419aa8a74b0068d64f4410279e944acab32be34ae73ba1ad7f7
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 3c52c52f504acc214dd3a2012e6a251e2c9e07e8cd83db620a4673b21319af9b
[INFO] running `"docker" "start" "-a" "3c52c52f504acc214dd3a2012e6a251e2c9e07e8cd83db620a4673b21319af9b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lzw-5c354b00515c6b1b
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test bitstream::test::reader_writer ... ok
[INFO] [stdout] test lzw::round_trip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lzw
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 16) ... 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" "3c52c52f504acc214dd3a2012e6a251e2c9e07e8cd83db620a4673b21319af9b"`
[INFO] running `"docker" "rm" "-f" "3c52c52f504acc214dd3a2012e6a251e2c9e07e8cd83db620a4673b21319af9b"`
[INFO] [stdout] 3c52c52f504acc214dd3a2012e6a251e2c9e07e8cd83db620a4673b21319af9b