[INFO] fetching crate blackhole 0.18.0...
[INFO] testing blackhole-0.18.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate blackhole 0.18.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate blackhole 0.18.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackhole 0.18.0
[INFO] finished tweaking crates.io crate blackhole 0.18.0
[INFO] tweaked toml for crates.io crate blackhole 0.18.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cb9c24dee56b7a8a73f8427bffa2b877ff998dbe04fdc9faec6d8d01f4ac58c
[INFO] running `Command { std: "docker" "start" "-a" "4cb9c24dee56b7a8a73f8427bffa2b877ff998dbe04fdc9faec6d8d01f4ac58c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cb9c24dee56b7a8a73f8427bffa2b877ff998dbe04fdc9faec6d8d01f4ac58c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb9c24dee56b7a8a73f8427bffa2b877ff998dbe04fdc9faec6d8d01f4ac58c", kill_on_drop: false }`
[INFO] [stdout] 4cb9c24dee56b7a8a73f8427bffa2b877ff998dbe04fdc9faec6d8d01f4ac58c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f156baea61b7cfa381e1be428f667109eca6c1871baa202ee0b55695022c41d
[INFO] running `Command { std: "docker" "start" "-a" "1f156baea61b7cfa381e1be428f667109eca6c1871baa202ee0b55695022c41d", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackhole v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "1f156baea61b7cfa381e1be428f667109eca6c1871baa202ee0b55695022c41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f156baea61b7cfa381e1be428f667109eca6c1871baa202ee0b55695022c41d", kill_on_drop: false }`
[INFO] [stdout] 1f156baea61b7cfa381e1be428f667109eca6c1871baa202ee0b55695022c41d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ca5ea9bad6ea81610ca778b95670c7dfe3b14f69804a73ded98a6bf9996ec8d
[INFO] running `Command { std: "docker" "start" "-a" "0ca5ea9bad6ea81610ca778b95670c7dfe3b14f69804a73ded98a6bf9996ec8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackhole v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "0ca5ea9bad6ea81610ca778b95670c7dfe3b14f69804a73ded98a6bf9996ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca5ea9bad6ea81610ca778b95670c7dfe3b14f69804a73ded98a6bf9996ec8d", kill_on_drop: false }`
[INFO] [stdout] 0ca5ea9bad6ea81610ca778b95670c7dfe3b14f69804a73ded98a6bf9996ec8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b7300a904fd65444000947045a99c309dcc934bc67d21f0ea64c55591442c6c3
[INFO] running `Command { std: "docker" "start" "-a" "b7300a904fd65444000947045a99c309dcc934bc67d21f0ea64c55591442c6c3", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blackhole-a5e7f341f98bf569)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/root.rs (/opt/rustwide/target/debug/deps/root-bd4fdd644f405852)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test job::test_one_time ... ok
[INFO] [stdout] test test_crate_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test stressing_black_hole ... ignored
[INFO] [stdout] test test_get_online_processors ... ok
[INFO] [stderr]    Doc-tests blackhole
[INFO] [stdout] test tests ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 1.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - get_online_processors (line 151) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/job.rs - job::OneTime (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b7300a904fd65444000947045a99c309dcc934bc67d21f0ea64c55591442c6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7300a904fd65444000947045a99c309dcc934bc67d21f0ea64c55591442c6c3", kill_on_drop: false }`
[INFO] [stdout] b7300a904fd65444000947045a99c309dcc934bc67d21f0ea64c55591442c6c3