[INFO] fetching crate trim 2.0.2...
[INFO] testing trim-2.0.2 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate trim 2.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate trim 2.0.2 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trim 2.0.2
[INFO] finished tweaking crates.io crate trim 2.0.2
[INFO] tweaked toml for crates.io crate trim 2.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate trim 2.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b5785366594e6be2dbb717172c51e0305b6563c2fbee1b1fcd32b2fd4b74271
[INFO] running `Command { std: "docker" "start" "-a" "5b5785366594e6be2dbb717172c51e0305b6563c2fbee1b1fcd32b2fd4b74271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b5785366594e6be2dbb717172c51e0305b6563c2fbee1b1fcd32b2fd4b74271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5785366594e6be2dbb717172c51e0305b6563c2fbee1b1fcd32b2fd4b74271", kill_on_drop: false }`
[INFO] [stdout] 5b5785366594e6be2dbb717172c51e0305b6563c2fbee1b1fcd32b2fd4b74271
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1e378c188d37486e981a0a6ef68519e4f44304c70b3cfd81d01ab2d82e8fd70
[INFO] running `Command { std: "docker" "start" "-a" "d1e378c188d37486e981a0a6ef68519e4f44304c70b3cfd81d01ab2d82e8fd70", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling colmac v0.1.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling trim v2.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `mktemp`
[INFO] [stdout]   --> src/util.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn mktemp<D>(prefix: &str, content: &D) -> io::Result<PathBuf>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.57s
[INFO] running `Command { std: "docker" "inspect" "d1e378c188d37486e981a0a6ef68519e4f44304c70b3cfd81d01ab2d82e8fd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e378c188d37486e981a0a6ef68519e4f44304c70b3cfd81d01ab2d82e8fd70", kill_on_drop: false }`
[INFO] [stdout] d1e378c188d37486e981a0a6ef68519e4f44304c70b3cfd81d01ab2d82e8fd70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f0fdadc35a1a7d3077fd7950867240a188987778b3f5145c869e5127e48493
[INFO] running `Command { std: "docker" "start" "-a" "54f0fdadc35a1a7d3077fd7950867240a188987778b3f5145c869e5127e48493", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling trim v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "54f0fdadc35a1a7d3077fd7950867240a188987778b3f5145c869e5127e48493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f0fdadc35a1a7d3077fd7950867240a188987778b3f5145c869e5127e48493", kill_on_drop: false }`
[INFO] [stdout] 54f0fdadc35a1a7d3077fd7950867240a188987778b3f5145c869e5127e48493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 95300313fe1c5438cbe90e484572eb90d25c2dc3bfdbd09abc9b41d2ea86168f
[INFO] running `Command { std: "docker" "start" "-a" "95300313fe1c5438cbe90e484572eb90d25c2dc3bfdbd09abc9b41d2ea86168f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trim-1251680f1f6df2ed)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test trim::tests::stdout::parametrized_n_suppress_newline ... ok
[INFO] [stdout] test trim::tests::in_place_sequential::parametrized_inplace_n_suppress_newline ... ok
[INFO] [stdout] test trim::tests::in_place_parallel::parametrized_inplace_suppress_newline ... ok
[INFO] [stdout] test trim::tests::stdout::parametrized_suppress_newline ... ok
[INFO] [stdout] test trim::tests::in_place_sequential::parametrized_inplace_suppress_newline ... ok
[INFO] [stdout] test util::tests::readlines::parametrized_readlines ... ok
[INFO] [stdout] test trim::tests::in_place_parallel::parametrized_inplace_n_suppress_newline ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95300313fe1c5438cbe90e484572eb90d25c2dc3bfdbd09abc9b41d2ea86168f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95300313fe1c5438cbe90e484572eb90d25c2dc3bfdbd09abc9b41d2ea86168f", kill_on_drop: false }`
[INFO] [stdout] 95300313fe1c5438cbe90e484572eb90d25c2dc3bfdbd09abc9b41d2ea86168f