[INFO] fetching crate permute 0.1.0...
[INFO] testing permute-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate permute 0.1.0 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate permute 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate permute 0.1.0
[INFO] finished tweaking crates.io crate permute 0.1.0
[INFO] tweaked toml for crates.io crate permute 0.1.0 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 161a9d305f55926d015ba7f23173c9a0977ec33cfdd296b6bdb25c23eac93a1c
[INFO] running `Command { std: "docker" "start" "-a" "161a9d305f55926d015ba7f23173c9a0977ec33cfdd296b6bdb25c23eac93a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161a9d305f55926d015ba7f23173c9a0977ec33cfdd296b6bdb25c23eac93a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161a9d305f55926d015ba7f23173c9a0977ec33cfdd296b6bdb25c23eac93a1c", kill_on_drop: false }`
[INFO] [stdout] 161a9d305f55926d015ba7f23173c9a0977ec33cfdd296b6bdb25c23eac93a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e737da52a83c30ef0aa4283eda8f71f32ccd1ef3d5a8b06d16cf173343a1951
[INFO] running `Command { std: "docker" "start" "-a" "0e737da52a83c30ef0aa4283eda8f71f32ccd1ef3d5a8b06d16cf173343a1951", kill_on_drop: false }`
[INFO] [stderr]    Compiling permute v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "0e737da52a83c30ef0aa4283eda8f71f32ccd1ef3d5a8b06d16cf173343a1951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e737da52a83c30ef0aa4283eda8f71f32ccd1ef3d5a8b06d16cf173343a1951", kill_on_drop: false }`
[INFO] [stdout] 0e737da52a83c30ef0aa4283eda8f71f32ccd1ef3d5a8b06d16cf173343a1951
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3e0d4605e96ba10504fe4a17cdd134d2768fea1cfce7f0c326c2748d366f98c
[INFO] running `Command { std: "docker" "start" "-a" "d3e0d4605e96ba10504fe4a17cdd134d2768fea1cfce7f0c326c2748d366f98c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling permute v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "d3e0d4605e96ba10504fe4a17cdd134d2768fea1cfce7f0c326c2748d366f98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e0d4605e96ba10504fe4a17cdd134d2768fea1cfce7f0c326c2748d366f98c", kill_on_drop: false }`
[INFO] [stdout] d3e0d4605e96ba10504fe4a17cdd134d2768fea1cfce7f0c326c2748d366f98c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1101ac0eddb72a14ca94e866cc0584d719a4d1e91d4c31ac8c008176d5134b84
[INFO] running `Command { std: "docker" "start" "-a" "1101ac0eddb72a14ca94e866cc0584d719a4d1e91d4c31ac8c008176d5134b84", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/permute-22a3c9139d828a24)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test arbitrary_tandem_control_iter::heterogeneous_vecs_nocopy ... ok
[INFO] [stdout] test permutations::permute_numbers ... ok
[INFO] [stdout] test arbitrary_tandem_control_iter::homogeneous_vecs ... ok
[INFO] [stdout] test permute_iter::strings_nocopy ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests permute
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/permute_iter.rs - permute_iter::permutations_of (line 25) ... ok
[INFO] [stdout] test src/arbitrary_tandem_control_iter.rs - arbitrary_tandem_control_iter::ArbitraryTandemControlIterator (line 14) ... ok
[INFO] [stdout] test src/permutations.rs - permutations::permute (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1101ac0eddb72a14ca94e866cc0584d719a4d1e91d4c31ac8c008176d5134b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1101ac0eddb72a14ca94e866cc0584d719a4d1e91d4c31ac8c008176d5134b84", kill_on_drop: false }`
[INFO] [stdout] 1101ac0eddb72a14ca94e866cc0584d719a4d1e91d4c31ac8c008176d5134b84