[INFO] crate buf-read-ext 0.3.0 is already in cache
[INFO] testing buf-read-ext-0.3.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate buf-read-ext 0.3.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate buf-read-ext 0.3.0 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 buf-read-ext 0.3.0
[INFO] finished tweaking crates.io crate buf-read-ext 0.3.0
[INFO] tweaked toml for crates.io crate buf-read-ext 0.3.0 written to work/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] 6a0da3fb67114d3f4fa79a0dcc1bb9c3a21974e994d8c22a54b18e2015b0ca95
[INFO] running `"docker" "start" "-a" "6a0da3fb67114d3f4fa79a0dcc1bb9c3a21974e994d8c22a54b18e2015b0ca95"`
[INFO] [stderr]    Compiling buf-read-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "6a0da3fb67114d3f4fa79a0dcc1bb9c3a21974e994d8c22a54b18e2015b0ca95"`
[INFO] running `"docker" "rm" "-f" "6a0da3fb67114d3f4fa79a0dcc1bb9c3a21974e994d8c22a54b18e2015b0ca95"`
[INFO] [stdout] 6a0da3fb67114d3f4fa79a0dcc1bb9c3a21974e994d8c22a54b18e2015b0ca95
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] ca79a023bf00bfef61c24d3bd00028fec55b09b7e2ca1bdbe1e4fe18466c3a50
[INFO] running `"docker" "start" "-a" "ca79a023bf00bfef61c24d3bd00028fec55b09b7e2ca1bdbe1e4fe18466c3a50"`
[INFO] [stderr]    Compiling buf-read-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "ca79a023bf00bfef61c24d3bd00028fec55b09b7e2ca1bdbe1e4fe18466c3a50"`
[INFO] running `"docker" "rm" "-f" "ca79a023bf00bfef61c24d3bd00028fec55b09b7e2ca1bdbe1e4fe18466c3a50"`
[INFO] [stdout] ca79a023bf00bfef61c24d3bd00028fec55b09b7e2ca1bdbe1e4fe18466c3a50
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] d5eedfc4a32fb9245100aa0bcb1760ae5731232e0b0df93bba2ea9e324339a22
[INFO] running `"docker" "start" "-a" "d5eedfc4a32fb9245100aa0bcb1760ae5731232e0b0df93bba2ea9e324339a22"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/buf_read_ext-647ef098a7325df4
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::stream_until_token ... ok
[INFO] [stdout] test tests::stream_until_token_complex_test ... ok
[INFO] [stdout] test tests::stream_until_token_double_straddle_test ... ok
[INFO] [stdout] test tests::stream_until_token_large_token_test ... ok
[INFO] [stdout] test tests::stream_until_token_multiple_prefix_test ... ok
[INFO] [stdout] test tests::stream_until_token_straddle_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buf-read-ext
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d5eedfc4a32fb9245100aa0bcb1760ae5731232e0b0df93bba2ea9e324339a22"`
[INFO] running `"docker" "rm" "-f" "d5eedfc4a32fb9245100aa0bcb1760ae5731232e0b0df93bba2ea9e324339a22"`
[INFO] [stdout] d5eedfc4a32fb9245100aa0bcb1760ae5731232e0b0df93bba2ea9e324339a22