[INFO] fetching crate process_guard 0.2.0...
[INFO] testing process_guard-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate process_guard 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate process_guard 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate process_guard 0.2.0
[INFO] finished tweaking crates.io crate process_guard 0.2.0
[INFO] tweaked toml for crates.io crate process_guard 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 123a6a45dfe81543a9824f70b9ecd887bf7c514d935b75cf3c9071a5dc05ba38
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "123a6a45dfe81543a9824f70b9ecd887bf7c514d935b75cf3c9071a5dc05ba38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "123a6a45dfe81543a9824f70b9ecd887bf7c514d935b75cf3c9071a5dc05ba38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123a6a45dfe81543a9824f70b9ecd887bf7c514d935b75cf3c9071a5dc05ba38", kill_on_drop: false }`
[INFO] [stdout] 123a6a45dfe81543a9824f70b9ecd887bf7c514d935b75cf3c9071a5dc05ba38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0aaf7f38da157c1ce206290e01bbba0c4038eabf6bddbc95f18f6dbde5ced7e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0aaf7f38da157c1ce206290e01bbba0c4038eabf6bddbc95f18f6dbde5ced7e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling ticktock v0.7.0
[INFO] [stderr]    Compiling process_guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.02s
[INFO] running `Command { std: "docker" "inspect" "0aaf7f38da157c1ce206290e01bbba0c4038eabf6bddbc95f18f6dbde5ced7e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aaf7f38da157c1ce206290e01bbba0c4038eabf6bddbc95f18f6dbde5ced7e0", kill_on_drop: false }`
[INFO] [stdout] 0aaf7f38da157c1ce206290e01bbba0c4038eabf6bddbc95f18f6dbde5ced7e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aebc316f3d0d4b7103e984a06c49fbd7655f31839791fe2ef253d87bedff67a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8aebc316f3d0d4b7103e984a06c49fbd7655f31839791fe2ef253d87bedff67a", kill_on_drop: false }`
[INFO] [stderr]    Compiling process_guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "8aebc316f3d0d4b7103e984a06c49fbd7655f31839791fe2ef253d87bedff67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aebc316f3d0d4b7103e984a06c49fbd7655f31839791fe2ef253d87bedff67a", kill_on_drop: false }`
[INFO] [stdout] 8aebc316f3d0d4b7103e984a06c49fbd7655f31839791fe2ef253d87bedff67a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60b8587312e4a3511305f0bee3d60d4d3b2c466a6cce271dd325a0ea6978f896
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "60b8587312e4a3511305f0bee3d60d4d3b2c466a6cce271dd325a0ea6978f896", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/process_guard-5affd9b445592204
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests process_guard
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60b8587312e4a3511305f0bee3d60d4d3b2c466a6cce271dd325a0ea6978f896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b8587312e4a3511305f0bee3d60d4d3b2c466a6cce271dd325a0ea6978f896", kill_on_drop: false }`
[INFO] [stdout] 60b8587312e4a3511305f0bee3d60d4d3b2c466a6cce271dd325a0ea6978f896