[INFO] fetching crate index-set 0.1.0...
[INFO] testing index-set-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate index-set 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate index-set 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 index-set 0.1.0
[INFO] finished tweaking crates.io crate index-set 0.1.0
[INFO] tweaked toml for crates.io crate index-set 0.1.0 written to /workspace/builds/worker-0/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 112c79d94c7c50fcd2fb43cd57a73be081682a7e9438afdd101651684bd050d8
[INFO] running `Command { std: "docker" "start" "-a" "112c79d94c7c50fcd2fb43cd57a73be081682a7e9438afdd101651684bd050d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "112c79d94c7c50fcd2fb43cd57a73be081682a7e9438afdd101651684bd050d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112c79d94c7c50fcd2fb43cd57a73be081682a7e9438afdd101651684bd050d8", kill_on_drop: false }`
[INFO] [stdout] 112c79d94c7c50fcd2fb43cd57a73be081682a7e9438afdd101651684bd050d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] bc00fad4bbf9a5b04153d29bf7cae964d19bb5f80284594194096bc14bc5ecdf
[INFO] running `Command { std: "docker" "start" "-a" "bc00fad4bbf9a5b04153d29bf7cae964d19bb5f80284594194096bc14bc5ecdf", kill_on_drop: false }`
[INFO] [stderr]    Compiling index-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "bc00fad4bbf9a5b04153d29bf7cae964d19bb5f80284594194096bc14bc5ecdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc00fad4bbf9a5b04153d29bf7cae964d19bb5f80284594194096bc14bc5ecdf", kill_on_drop: false }`
[INFO] [stdout] bc00fad4bbf9a5b04153d29bf7cae964d19bb5f80284594194096bc14bc5ecdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 056f54b81aa7ecd0ac28a41dfd9e12bda5dc0b85bd02585e5dc0b7614cb9deee
[INFO] running `Command { std: "docker" "start" "-a" "056f54b81aa7ecd0ac28a41dfd9e12bda5dc0b85bd02585e5dc0b7614cb9deee", kill_on_drop: false }`
[INFO] [stderr]    Compiling index-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "056f54b81aa7ecd0ac28a41dfd9e12bda5dc0b85bd02585e5dc0b7614cb9deee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "056f54b81aa7ecd0ac28a41dfd9e12bda5dc0b85bd02585e5dc0b7614cb9deee", kill_on_drop: false }`
[INFO] [stdout] 056f54b81aa7ecd0ac28a41dfd9e12bda5dc0b85bd02585e5dc0b7614cb9deee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8eb238c48284f6d605a40db3e16f3d55e2d2104c80d56d6aee268afa9f45cd4c
[INFO] running `Command { std: "docker" "start" "-a" "8eb238c48284f6d605a40db3e16f3d55e2d2104c80d56d6aee268afa9f45cd4c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/index_set-b8fac68f7476fa6e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test bucket::tests::double_ended_iter ... ok
[INFO] [stdout] test bucket::tests::iter ... ok
[INFO] [stdout] test bucket::tests::iter_len ... ok
[INFO] [stdout] test set::tests::contains_after_insert ... ok
[INFO] [stdout] test set::tests::iter ... ok
[INFO] [stdout] test set::tests::invalid_char - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests index-set
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test src/set.rs - set::IndexSet<T>::is_empty (line 385) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name index_set --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern index_set=/opt/rustwide/target/debug/deps/libindex_set-0cafd077bfe5683a.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "8eb238c48284f6d605a40db3e16f3d55e2d2104c80d56d6aee268afa9f45cd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb238c48284f6d605a40db3e16f3d55e2d2104c80d56d6aee268afa9f45cd4c", kill_on_drop: false }`
[INFO] [stdout] 8eb238c48284f6d605a40db3e16f3d55e2d2104c80d56d6aee268afa9f45cd4c