[INFO] fetching crate rbf 0.2.0...
[INFO] testing rbf-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rbf 0.2.0 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate rbf 0.2.0 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 rbf 0.2.0
[INFO] finished tweaking crates.io crate rbf 0.2.0
[INFO] tweaked toml for crates.io crate rbf 0.2.0 written to /workspace/builds/worker-111/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] [stderr]     Blocking waiting for file lock on package cache
[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-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] b9fc58c59b0d7b80e41fa530fdc199378f2405a438c67764beac22fdc744ba00
[INFO] running `Command { std: "docker" "start" "-a" "b9fc58c59b0d7b80e41fa530fdc199378f2405a438c67764beac22fdc744ba00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9fc58c59b0d7b80e41fa530fdc199378f2405a438c67764beac22fdc744ba00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fc58c59b0d7b80e41fa530fdc199378f2405a438c67764beac22fdc744ba00", kill_on_drop: false }`
[INFO] [stdout] b9fc58c59b0d7b80e41fa530fdc199378f2405a438c67764beac22fdc744ba00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] cd4ca0e85ec9d18d894871b23edff1e7626df3ec760e5cb3116d233058150561
[INFO] running `Command { std: "docker" "start" "-a" "cd4ca0e85ec9d18d894871b23edff1e7626df3ec760e5cb3116d233058150561", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "cd4ca0e85ec9d18d894871b23edff1e7626df3ec760e5cb3116d233058150561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd4ca0e85ec9d18d894871b23edff1e7626df3ec760e5cb3116d233058150561", kill_on_drop: false }`
[INFO] [stdout] cd4ca0e85ec9d18d894871b23edff1e7626df3ec760e5cb3116d233058150561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] d1f0bbc4f391b182caf2fb5fdc7b012612ccaf4d053ca4df2a1d2cca4c3894e7
[INFO] running `Command { std: "docker" "start" "-a" "d1f0bbc4f391b182caf2fb5fdc7b012612ccaf4d053ca4df2a1d2cca4c3894e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "d1f0bbc4f391b182caf2fb5fdc7b012612ccaf4d053ca4df2a1d2cca4c3894e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f0bbc4f391b182caf2fb5fdc7b012612ccaf4d053ca4df2a1d2cca4c3894e7", kill_on_drop: false }`
[INFO] [stdout] d1f0bbc4f391b182caf2fb5fdc7b012612ccaf4d053ca4df2a1d2cca4c3894e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 6619b4093fd3f3a92799eb8d666f9146a578f5dffe2ef9b2fb7904d28a8e437d
[INFO] running `Command { std: "docker" "start" "-a" "6619b4093fd3f3a92799eb8d666f9146a578f5dffe2ef9b2fb7904d28a8e437d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbf-47593cb861367c47)
[INFO] [stdout] running 8 tests
[INFO] [stderr]    Doc-tests rbf
[INFO] [stdout] test tests::consuming_iterator ... ok
[INFO] [stdout] test tests::fail_overwrite ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::iter_convenience ... ok
[INFO] [stdout] test tests::iterator_immutable ... ok
[INFO] [stdout] test tests::pop_empty ... ok
[INFO] [stdout] test tests::push_overwrite ... ok
[INFO] [stdout] test tests::single_element ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "6619b4093fd3f3a92799eb8d666f9146a578f5dffe2ef9b2fb7904d28a8e437d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6619b4093fd3f3a92799eb8d666f9146a578f5dffe2ef9b2fb7904d28a8e437d", kill_on_drop: false }`
[INFO] [stdout] 6619b4093fd3f3a92799eb8d666f9146a578f5dffe2ef9b2fb7904d28a8e437d