[INFO] fetching crate proc-lock-api 0.4.0...
[INFO] testing proc-lock-api-0.4.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate proc-lock-api 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate proc-lock-api 0.4.0
[INFO] finished tweaking crates.io crate proc-lock-api 0.4.0
[INFO] tweaked toml for crates.io crate proc-lock-api 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proc-lock-api 0.4.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62c651576426d0cb54afc4bd108626c39b23f3429cd0b47045fe154fdb4e20c9
[INFO] running `Command { std: "docker" "start" "-a" "62c651576426d0cb54afc4bd108626c39b23f3429cd0b47045fe154fdb4e20c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62c651576426d0cb54afc4bd108626c39b23f3429cd0b47045fe154fdb4e20c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62c651576426d0cb54afc4bd108626c39b23f3429cd0b47045fe154fdb4e20c9", kill_on_drop: false }`
[INFO] [stdout] 62c651576426d0cb54afc4bd108626c39b23f3429cd0b47045fe154fdb4e20c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71ff0f14e734dc5b87ba1645776249a283224f8683f7257e3103c085d66ad5f2
[INFO] running `Command { std: "docker" "start" "-a" "71ff0f14e734dc5b87ba1645776249a283224f8683f7257e3103c085d66ad5f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling proc-lock-api v0.4.0 (/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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "71ff0f14e734dc5b87ba1645776249a283224f8683f7257e3103c085d66ad5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ff0f14e734dc5b87ba1645776249a283224f8683f7257e3103c085d66ad5f2", kill_on_drop: false }`
[INFO] [stdout] 71ff0f14e734dc5b87ba1645776249a283224f8683f7257e3103c085d66ad5f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d561448d1f0d5ea9829a0eb0a582d79ebf842995bdb39b548c34b7d7d275b258
[INFO] running `Command { std: "docker" "start" "-a" "d561448d1f0d5ea9829a0eb0a582d79ebf842995bdb39b548c34b7d7d275b258", 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 num-integer v0.1.46
[INFO] [stderr]    Compiling rand v0.4.6
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.1.43
[INFO] [stderr]    Compiling spectral v0.6.0
[INFO] [stderr]    Compiling proc-lock-api v0.4.0 (/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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "d561448d1f0d5ea9829a0eb0a582d79ebf842995bdb39b548c34b7d7d275b258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d561448d1f0d5ea9829a0eb0a582d79ebf842995bdb39b548c34b7d7d275b258", kill_on_drop: false }`
[INFO] [stdout] d561448d1f0d5ea9829a0eb0a582d79ebf842995bdb39b548c34b7d7d275b258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ad52036be0e572b52640c0206fba7a5c9de1d90486ecec4517660a576a35befe
[INFO] running `Command { std: "docker" "start" "-a" "ad52036be0e572b52640c0206fba7a5c9de1d90486ecec4517660a576a35befe", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs2::FileExt`
[INFO] [stderr]  --> src/lock_guard.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use fs2::FileExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proc-lock-api` (lib) generated 1 warning
[INFO] [stderr] warning: `proc-lock-api` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proc_lock_api-a1ce1244dd1e9256)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests proc_lock_api
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ad52036be0e572b52640c0206fba7a5c9de1d90486ecec4517660a576a35befe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad52036be0e572b52640c0206fba7a5c9de1d90486ecec4517660a576a35befe", kill_on_drop: false }`
[INFO] [stdout] ad52036be0e572b52640c0206fba7a5c9de1d90486ecec4517660a576a35befe