[INFO] fetching crate single-instance 0.3.1...
[INFO] testing single-instance-0.3.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate single-instance 0.3.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate single-instance 0.3.1 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 single-instance 0.3.1
[INFO] finished tweaking crates.io crate single-instance 0.3.1
[INFO] tweaked toml for crates.io crate single-instance 0.3.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate single-instance 0.3.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 6d6d9d496cfb03ce351a8840b88c202d8129b22c62e594f38f6c49aadedd7802
[INFO] running `Command { std: "docker" "start" "-a" "6d6d9d496cfb03ce351a8840b88c202d8129b22c62e594f38f6c49aadedd7802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d6d9d496cfb03ce351a8840b88c202d8129b22c62e594f38f6c49aadedd7802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6d9d496cfb03ce351a8840b88c202d8129b22c62e594f38f6c49aadedd7802", kill_on_drop: false }`
[INFO] [stdout] 6d6d9d496cfb03ce351a8840b88c202d8129b22c62e594f38f6c49aadedd7802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d9b6748ade8dc158a5f42f94b71cbcffd0b4923d779ed0eb9e0f34c5e8c06ca4
[INFO] running `Command { std: "docker" "start" "-a" "d9b6748ade8dc158a5f42f94b71cbcffd0b4923d779ed0eb9e0f34c5e8c06ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling widestring v0.4.3
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling single-instance v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "d9b6748ade8dc158a5f42f94b71cbcffd0b4923d779ed0eb9e0f34c5e8c06ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b6748ade8dc158a5f42f94b71cbcffd0b4923d779ed0eb9e0f34c5e8c06ca4", kill_on_drop: false }`
[INFO] [stdout] d9b6748ade8dc158a5f42f94b71cbcffd0b4923d779ed0eb9e0f34c5e8c06ca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 0f38a6a9698b8a1f215f8e986adca6323d7137fccb6308d683f5551a342ccc27
[INFO] running `Command { std: "docker" "start" "-a" "0f38a6a9698b8a1f215f8e986adca6323d7137fccb6308d683f5551a342ccc27", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-instance v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "0f38a6a9698b8a1f215f8e986adca6323d7137fccb6308d683f5551a342ccc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f38a6a9698b8a1f215f8e986adca6323d7137fccb6308d683f5551a342ccc27", kill_on_drop: false }`
[INFO] [stdout] 0f38a6a9698b8a1f215f8e986adca6323d7137fccb6308d683f5551a342ccc27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 0f57fca946f3caf345c07b699f316fa372a27b16bcbb00b8dced8f88f55031f4
[INFO] running `Command { std: "docker" "start" "-a" "0f57fca946f3caf345c07b699f316fa372a27b16bcbb00b8dced8f88f55031f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_instance-54bc719452de7f45)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests single-instance
[INFO] [stdout] test test_single_instance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0f57fca946f3caf345c07b699f316fa372a27b16bcbb00b8dced8f88f55031f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f57fca946f3caf345c07b699f316fa372a27b16bcbb00b8dced8f88f55031f4", kill_on_drop: false }`
[INFO] [stdout] 0f57fca946f3caf345c07b699f316fa372a27b16bcbb00b8dced8f88f55031f4