[INFO] fetching crate single-instance 0.3.2...
[INFO] testing single-instance-0.3.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate single-instance 0.3.2 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate single-instance 0.3.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate single-instance 0.3.2
[INFO] finished tweaking crates.io crate single-instance 0.3.2
[INFO] tweaked toml for crates.io crate single-instance 0.3.2 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate single-instance 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65f65c3c53f5d47a15b50d869ac68541325b30b73cdbd22c9ad95de2293f4e61
[INFO] running `Command { std: "docker" "start" "-a" "65f65c3c53f5d47a15b50d869ac68541325b30b73cdbd22c9ad95de2293f4e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65f65c3c53f5d47a15b50d869ac68541325b30b73cdbd22c9ad95de2293f4e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65f65c3c53f5d47a15b50d869ac68541325b30b73cdbd22c9ad95de2293f4e61", kill_on_drop: false }`
[INFO] [stdout] 65f65c3c53f5d47a15b50d869ac68541325b30b73cdbd22c9ad95de2293f4e61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f5ece7c5055157774575f910bf1156a630e7d6af38bc51511a2d63865576700
[INFO] running `Command { std: "docker" "start" "-a" "5f5ece7c5055157774575f910bf1156a630e7d6af38bc51511a2d63865576700", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling widestring v0.4.3
[INFO] [stderr]    Compiling quote v1.0.9
[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 v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "5f5ece7c5055157774575f910bf1156a630e7d6af38bc51511a2d63865576700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5ece7c5055157774575f910bf1156a630e7d6af38bc51511a2d63865576700", kill_on_drop: false }`
[INFO] [stdout] 5f5ece7c5055157774575f910bf1156a630e7d6af38bc51511a2d63865576700
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e70a7ca2f0ad9ab86d0385dba0203c83cd36d97b9b20ce8b1a2e472b0e3c7c5
[INFO] running `Command { std: "docker" "start" "-a" "9e70a7ca2f0ad9ab86d0385dba0203c83cd36d97b9b20ce8b1a2e472b0e3c7c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-instance v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "9e70a7ca2f0ad9ab86d0385dba0203c83cd36d97b9b20ce8b1a2e472b0e3c7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e70a7ca2f0ad9ab86d0385dba0203c83cd36d97b9b20ce8b1a2e472b0e3c7c5", kill_on_drop: false }`
[INFO] [stdout] 9e70a7ca2f0ad9ab86d0385dba0203c83cd36d97b9b20ce8b1a2e472b0e3c7c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b755d281b6c011bcae476efe2dd0f8224568e3c40dc72008643f999d22edabd
[INFO] running `Command { std: "docker" "start" "-a" "5b755d281b6c011bcae476efe2dd0f8224568e3c40dc72008643f999d22edabd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_instance-b0acb87932dbf930)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests single-instance
[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 0.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b755d281b6c011bcae476efe2dd0f8224568e3c40dc72008643f999d22edabd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b755d281b6c011bcae476efe2dd0f8224568e3c40dc72008643f999d22edabd", kill_on_drop: false }`
[INFO] [stdout] 5b755d281b6c011bcae476efe2dd0f8224568e3c40dc72008643f999d22edabd