[INFO] fetching crate iota-pow 0.2.1...
[INFO] testing iota-pow-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate iota-pow 0.2.1 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate iota-pow 0.2.1 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 iota-pow 0.2.1
[INFO] finished tweaking crates.io crate iota-pow 0.2.1
[INFO] tweaked toml for crates.io crate iota-pow 0.2.1 written to /workspace/builds/worker-33/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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 9d1b2143273b957c63a3ca8eb91208ca8213d653981dc49ecd2c2a3a71f63835
[INFO] running `Command { std: "docker" "start" "-a" "9d1b2143273b957c63a3ca8eb91208ca8213d653981dc49ecd2c2a3a71f63835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1b2143273b957c63a3ca8eb91208ca8213d653981dc49ecd2c2a3a71f63835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1b2143273b957c63a3ca8eb91208ca8213d653981dc49ecd2c2a3a71f63835", kill_on_drop: false }`
[INFO] [stdout] 9d1b2143273b957c63a3ca8eb91208ca8213d653981dc49ecd2c2a3a71f63835
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] b0971eb0cbcd85bfe9182eca8382eaaabbd51000d84626d3ffbfc2bff15fab75
[INFO] running `Command { std: "docker" "start" "-a" "b0971eb0cbcd85bfe9182eca8382eaaabbd51000d84626d3ffbfc2bff15fab75", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling iota-constants v0.2.1
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling iota-conversion v0.3.0
[INFO] [stderr]    Compiling iota-crypto v0.3.0
[INFO] [stderr]    Compiling iota-pow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.62s
[INFO] running `Command { std: "docker" "inspect" "b0971eb0cbcd85bfe9182eca8382eaaabbd51000d84626d3ffbfc2bff15fab75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0971eb0cbcd85bfe9182eca8382eaaabbd51000d84626d3ffbfc2bff15fab75", kill_on_drop: false }`
[INFO] [stdout] b0971eb0cbcd85bfe9182eca8382eaaabbd51000d84626d3ffbfc2bff15fab75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 1972c9c794b2961e4145baf2ec7a94c95e1c513a817a1b36a747a32334274a48
[INFO] running `Command { std: "docker" "start" "-a" "1972c9c794b2961e4145baf2ec7a94c95e1c513a817a1b36a747a32334274a48", kill_on_drop: false }`
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling iota-pow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.71s
[INFO] running `Command { std: "docker" "inspect" "1972c9c794b2961e4145baf2ec7a94c95e1c513a817a1b36a747a32334274a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1972c9c794b2961e4145baf2ec7a94c95e1c513a817a1b36a747a32334274a48", kill_on_drop: false }`
[INFO] [stdout] 1972c9c794b2961e4145baf2ec7a94c95e1c513a817a1b36a747a32334274a48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 182371945d7e8372ee34a0394cebf36715aba5e5401b9b57be0ffe061b58900a
[INFO] running `Command { std: "docker" "start" "-a" "182371945d7e8372ee34a0394cebf36715aba5e5401b9b57be0ffe061b58900a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iota_pow-9a5412189681efe9)
[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] [stderr]    Doc-tests iota_pow
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lib.rs - PearlDiver::cancel (line 111) ... ok
[INFO] [stdout] test lib.rs - PearlDiver (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "182371945d7e8372ee34a0394cebf36715aba5e5401b9b57be0ffe061b58900a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182371945d7e8372ee34a0394cebf36715aba5e5401b9b57be0ffe061b58900a", kill_on_drop: false }`
[INFO] [stdout] 182371945d7e8372ee34a0394cebf36715aba5e5401b9b57be0ffe061b58900a