[INFO] fetching crate proclock-api 0.2.2...
[INFO] testing proclock-api-0.2.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate proclock-api 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate proclock-api 0.2.2
[INFO] finished tweaking crates.io crate proclock-api 0.2.2
[INFO] tweaked toml for crates.io crate proclock-api 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate proclock-api 0.2.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2d292b163d9bca6989698b4179a55007c93a7cac047c7c3711c4cc9b8771357
[INFO] running `Command { std: "docker" "start" "-a" "c2d292b163d9bca6989698b4179a55007c93a7cac047c7c3711c4cc9b8771357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2d292b163d9bca6989698b4179a55007c93a7cac047c7c3711c4cc9b8771357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2d292b163d9bca6989698b4179a55007c93a7cac047c7c3711c4cc9b8771357", kill_on_drop: false }`
[INFO] [stdout] c2d292b163d9bca6989698b4179a55007c93a7cac047c7c3711c4cc9b8771357
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] adf2ca64e527b7a84a9865a36287480527b2cff39d158543c7f016368eaecfdb
[INFO] running `Command { std: "docker" "start" "-a" "adf2ca64e527b7a84a9865a36287480527b2cff39d158543c7f016368eaecfdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling proclock-api v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs2::FileExt`
[INFO] [stdout]  --> src/lock_guard.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fs2::FileExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "adf2ca64e527b7a84a9865a36287480527b2cff39d158543c7f016368eaecfdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf2ca64e527b7a84a9865a36287480527b2cff39d158543c7f016368eaecfdb", kill_on_drop: false }`
[INFO] [stdout] adf2ca64e527b7a84a9865a36287480527b2cff39d158543c7f016368eaecfdb
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 920f46227e0a4b82569ae92f4687186a7ded32f95409b8e00cc8f1847f3667fb
[INFO] running `Command { std: "docker" "start" "-a" "920f46227e0a4b82569ae92f4687186a7ded32f95409b8e00cc8f1847f3667fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stdout] warning: unused import: `fs2::FileExt`
[INFO] [stdout]  --> src/lock_guard.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fs2::FileExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num v0.1.43
[INFO] [stderr]    Compiling spectral v0.6.0
[INFO] [stderr]    Compiling proclock-api v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs2::FileExt`
[INFO] [stdout]  --> src/lock_guard.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fs2::FileExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.49s
[INFO] running `Command { std: "docker" "inspect" "920f46227e0a4b82569ae92f4687186a7ded32f95409b8e00cc8f1847f3667fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "920f46227e0a4b82569ae92f4687186a7ded32f95409b8e00cc8f1847f3667fb", kill_on_drop: false }`
[INFO] [stdout] 920f46227e0a4b82569ae92f4687186a7ded32f95409b8e00cc8f1847f3667fb
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b61beea1b92d1a3a819ff87837eddaa0dd2adc194172f0ce8fb332bc4ff3635d
[INFO] running `Command { std: "docker" "start" "-a" "b61beea1b92d1a3a819ff87837eddaa0dd2adc194172f0ce8fb332bc4ff3635d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs2::FileExt`
[INFO] [stdout] 
[INFO] [stderr]  --> src/lock_guard.rs:1:5
[INFO] [stdout] running 2 tests
[INFO] [stderr]   |
[INFO] [stderr] 1 | use fs2::FileExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proclock-api` (lib) generated 1 warning
[INFO] [stderr] warning: `proclock-api` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/proclock_api-7443ea195f3d554b)
[INFO] [stdout] test tests::should_return_err_when_file_is_already_locked ... ok
[INFO] [stdout] test tests::should_unlock_guard_on_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b61beea1b92d1a3a819ff87837eddaa0dd2adc194172f0ce8fb332bc4ff3635d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61beea1b92d1a3a819ff87837eddaa0dd2adc194172f0ce8fb332bc4ff3635d", kill_on_drop: false }`
[INFO] [stdout] b61beea1b92d1a3a819ff87837eddaa0dd2adc194172f0ce8fb332bc4ff3635d