[INFO] fetching crate unshare 0.7.0...
[INFO] testing unshare-0.7.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate unshare 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate unshare 0.7.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unshare 0.7.0
[INFO] finished tweaking crates.io crate unshare 0.7.0
[INFO] tweaked toml for crates.io crate unshare 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate unshare 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 031c3a64ebd2654725090fdcd4d9cb7b570047c2d5abdb7d18af102fa96aa499
[INFO] running `Command { std: "docker" "start" "-a" "031c3a64ebd2654725090fdcd4d9cb7b570047c2d5abdb7d18af102fa96aa499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "031c3a64ebd2654725090fdcd4d9cb7b570047c2d5abdb7d18af102fa96aa499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031c3a64ebd2654725090fdcd4d9cb7b570047c2d5abdb7d18af102fa96aa499", kill_on_drop: false }`
[INFO] [stdout] 031c3a64ebd2654725090fdcd4d9cb7b570047c2d5abdb7d18af102fa96aa499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c75d9486a8e23bb46ef210efc82b8b9544c987f344a1d1c787a55b11e85a15af
[INFO] running `Command { std: "docker" "start" "-a" "c75d9486a8e23bb46ef210efc82b8b9544c987f344a1d1c787a55b11e85a15af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling unshare v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.06s
[INFO] running `Command { std: "docker" "inspect" "c75d9486a8e23bb46ef210efc82b8b9544c987f344a1d1c787a55b11e85a15af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75d9486a8e23bb46ef210efc82b8b9544c987f344a1d1c787a55b11e85a15af", kill_on_drop: false }`
[INFO] [stdout] c75d9486a8e23bb46ef210efc82b8b9544c987f344a1d1c787a55b11e85a15af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4d6b6f5a1db18ae78083f79d39eb95a7cdc85b7110992c670945b1e041ac558
[INFO] running `Command { std: "docker" "start" "-a" "c4d6b6f5a1db18ae78083f79d39eb95a7cdc85b7110992c670945b1e041ac558", kill_on_drop: false }`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling unshare v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.75s
[INFO] running `Command { std: "docker" "inspect" "c4d6b6f5a1db18ae78083f79d39eb95a7cdc85b7110992c670945b1e041ac558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4d6b6f5a1db18ae78083f79d39eb95a7cdc85b7110992c670945b1e041ac558", kill_on_drop: false }`
[INFO] [stdout] c4d6b6f5a1db18ae78083f79d39eb95a7cdc85b7110992c670945b1e041ac558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d84a75d5521794b0793eb3862d751c24865a78fc5bcf21ed581ec4d29c2fb92f
[INFO] running `Command { std: "docker" "start" "-a" "d84a75d5521794b0793eb3862d751c24865a78fc5bcf21ed581ec4d29c2fb92f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unshare-f4c0bcda4b4e1cfa)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test child::test::test_format ... ok
[INFO] [stdout] test debug::test::test_comprehensive ... ok
[INFO] [stdout] test debug::test::test_debug ... ok
[INFO] [stdout] test debug::test::test_no_env ... ok
[INFO] [stdout] test debug::test::test_pretty ... ok
[INFO] [stdout] test child::test::test_random ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unshare
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/linux.rs - linux::Command::env_var_with_pid (line 258) ... ignored
[INFO] [stdout] test src/zombies.rs - zombies::child_events (line 142) ... ignored
[INFO] [stdout] test src/zombies.rs - zombies::reap_zombies (line 58) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d84a75d5521794b0793eb3862d751c24865a78fc5bcf21ed581ec4d29c2fb92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84a75d5521794b0793eb3862d751c24865a78fc5bcf21ed581ec4d29c2fb92f", kill_on_drop: false }`
[INFO] [stdout] d84a75d5521794b0793eb3862d751c24865a78fc5bcf21ed581ec4d29c2fb92f