[INFO] fetching crate nsenter 0.0.1...
[INFO] testing nsenter-0.0.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate nsenter 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nsenter 0.0.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nsenter 0.0.1
[INFO] finished tweaking crates.io crate nsenter 0.0.1
[INFO] tweaked toml for crates.io crate nsenter 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53dac2d17f68955a2e6f8f00bd92571db8d7cd6f7470e08269c563d58c59ee4e
[INFO] running `Command { std: "docker" "start" "-a" "53dac2d17f68955a2e6f8f00bd92571db8d7cd6f7470e08269c563d58c59ee4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53dac2d17f68955a2e6f8f00bd92571db8d7cd6f7470e08269c563d58c59ee4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53dac2d17f68955a2e6f8f00bd92571db8d7cd6f7470e08269c563d58c59ee4e", kill_on_drop: false }`
[INFO] [stdout] 53dac2d17f68955a2e6f8f00bd92571db8d7cd6f7470e08269c563d58c59ee4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48fd8c587d3d4957b5a6d2c6d107eec26ee4d82091ad13bbc9154796774593eb
[INFO] running `Command { std: "docker" "start" "-a" "48fd8c587d3d4957b5a6d2c6d107eec26ee4d82091ad13bbc9154796774593eb", 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]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling text_io v0.1.9
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling nix v0.4.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]    Compiling unshare v0.1.15
[INFO] [stderr]    Compiling nsutils v0.0.5
[INFO] [stderr]    Compiling nsenter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.41s
[INFO] running `Command { std: "docker" "inspect" "48fd8c587d3d4957b5a6d2c6d107eec26ee4d82091ad13bbc9154796774593eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48fd8c587d3d4957b5a6d2c6d107eec26ee4d82091ad13bbc9154796774593eb", kill_on_drop: false }`
[INFO] [stdout] 48fd8c587d3d4957b5a6d2c6d107eec26ee4d82091ad13bbc9154796774593eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4401632548fb650efb0422e1c0640d0ae545113017c7dd9119660d4900894a0e
[INFO] running `Command { std: "docker" "start" "-a" "4401632548fb650efb0422e1c0640d0ae545113017c7dd9119660d4900894a0e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nsenter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "4401632548fb650efb0422e1c0640d0ae545113017c7dd9119660d4900894a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4401632548fb650efb0422e1c0640d0ae545113017c7dd9119660d4900894a0e", kill_on_drop: false }`
[INFO] [stdout] 4401632548fb650efb0422e1c0640d0ae545113017c7dd9119660d4900894a0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b7ed3f907baa8be1920ae456ec5a4c7b4f35fa44649d3071f1488433d7cd88e
[INFO] running `Command { std: "docker" "start" "-a" "4b7ed3f907baa8be1920ae456ec5a4c7b4f35fa44649d3071f1488433d7cd88e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nsenter-e96adb7391f24fc8)
[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" "4b7ed3f907baa8be1920ae456ec5a4c7b4f35fa44649d3071f1488433d7cd88e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7ed3f907baa8be1920ae456ec5a4c7b4f35fa44649d3071f1488433d7cd88e", kill_on_drop: false }`
[INFO] [stdout] 4b7ed3f907baa8be1920ae456ec5a4c7b4f35fa44649d3071f1488433d7cd88e