[INFO] fetching crate mpst 0.0.1...
[INFO] testing mpst-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mpst 0.0.1 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate mpst 0.0.1 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 mpst 0.0.1
[INFO] finished tweaking crates.io crate mpst 0.0.1
[INFO] tweaked toml for crates.io crate mpst 0.0.1 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] ae0bb53f34d43790e1f6ee5f8e45723d6888064f7ebe7e3f275c10b20bc4fec4
[INFO] running `Command { std: "docker" "start" "-a" "ae0bb53f34d43790e1f6ee5f8e45723d6888064f7ebe7e3f275c10b20bc4fec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae0bb53f34d43790e1f6ee5f8e45723d6888064f7ebe7e3f275c10b20bc4fec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0bb53f34d43790e1f6ee5f8e45723d6888064f7ebe7e3f275c10b20bc4fec4", kill_on_drop: false }`
[INFO] [stdout] ae0bb53f34d43790e1f6ee5f8e45723d6888064f7ebe7e3f275c10b20bc4fec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 970093ed606a1a2b3e9ed2fe126d25faef241576aa645f5979c54c5268b6fd62
[INFO] running `Command { std: "docker" "start" "-a" "970093ed606a1a2b3e9ed2fe126d25faef241576aa645f5979c54c5268b6fd62", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mpst v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "970093ed606a1a2b3e9ed2fe126d25faef241576aa645f5979c54c5268b6fd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970093ed606a1a2b3e9ed2fe126d25faef241576aa645f5979c54c5268b6fd62", kill_on_drop: false }`
[INFO] [stdout] 970093ed606a1a2b3e9ed2fe126d25faef241576aa645f5979c54c5268b6fd62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 74bb789bdcae96c5a647eb58b9f25284012c4a5eccddd348748ff3161cd4fb34
[INFO] running `Command { std: "docker" "start" "-a" "74bb789bdcae96c5a647eb58b9f25284012c4a5eccddd348748ff3161cd4fb34", kill_on_drop: false }`
[INFO] [stderr]    Compiling mpst v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "74bb789bdcae96c5a647eb58b9f25284012c4a5eccddd348748ff3161cd4fb34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bb789bdcae96c5a647eb58b9f25284012c4a5eccddd348748ff3161cd4fb34", kill_on_drop: false }`
[INFO] [stdout] 74bb789bdcae96c5a647eb58b9f25284012c4a5eccddd348748ff3161cd4fb34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 905db57c0f4946dba960393edb9ac3f248f40e64b7dad8d1774bf30c0c30add4
[INFO] running `Command { std: "docker" "start" "-a" "905db57c0f4946dba960393edb9ac3f248f40e64b7dad8d1774bf30c0c30add4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mpst-e6a9fff36a2463ba)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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 mpst
[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" "905db57c0f4946dba960393edb9ac3f248f40e64b7dad8d1774bf30c0c30add4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905db57c0f4946dba960393edb9ac3f248f40e64b7dad8d1774bf30c0c30add4", kill_on_drop: false }`
[INFO] [stdout] 905db57c0f4946dba960393edb9ac3f248f40e64b7dad8d1774bf30c0c30add4