[INFO] fetching crate histo 0.1.0...
[INFO] testing histo-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate histo 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate histo 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate histo 0.1.0
[INFO] finished tweaking crates.io crate histo 0.1.0
[INFO] tweaked toml for crates.io crate histo 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c3652ffb440edf6a006f2a02e14df0287ca31f81050d95746776214b98e3b65
[INFO] running `Command { std: "docker" "start" "-a" "3c3652ffb440edf6a006f2a02e14df0287ca31f81050d95746776214b98e3b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c3652ffb440edf6a006f2a02e14df0287ca31f81050d95746776214b98e3b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3652ffb440edf6a006f2a02e14df0287ca31f81050d95746776214b98e3b65", kill_on_drop: false }`
[INFO] [stdout] 3c3652ffb440edf6a006f2a02e14df0287ca31f81050d95746776214b98e3b65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 332c0635a933b0cfae814a2601f9efdef2f4aaba8398a1b8235ce09f959fb14c
[INFO] running `Command { std: "docker" "start" "-a" "332c0635a933b0cfae814a2601f9efdef2f4aaba8398a1b8235ce09f959fb14c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling streaming-stats v0.1.29
[INFO] [stderr]    Compiling histo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "332c0635a933b0cfae814a2601f9efdef2f4aaba8398a1b8235ce09f959fb14c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "332c0635a933b0cfae814a2601f9efdef2f4aaba8398a1b8235ce09f959fb14c", kill_on_drop: false }`
[INFO] [stdout] 332c0635a933b0cfae814a2601f9efdef2f4aaba8398a1b8235ce09f959fb14c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45cb9ab1660ab888c8f4ffc552bb94bc195f96ba1a7b8c203fc2a49c1f0e696b
[INFO] running `Command { std: "docker" "start" "-a" "45cb9ab1660ab888c8f4ffc552bb94bc195f96ba1a7b8c203fc2a49c1f0e696b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling histo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "45cb9ab1660ab888c8f4ffc552bb94bc195f96ba1a7b8c203fc2a49c1f0e696b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45cb9ab1660ab888c8f4ffc552bb94bc195f96ba1a7b8c203fc2a49c1f0e696b", kill_on_drop: false }`
[INFO] [stdout] 45cb9ab1660ab888c8f4ffc552bb94bc195f96ba1a7b8c203fc2a49c1f0e696b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76e5156a9dbdb1299c5321786dc064604f29615411135b8777232f15c49c46d4
[INFO] running `Command { std: "docker" "start" "-a" "76e5156a9dbdb1299c5321786dc064604f29615411135b8777232f15c49c46d4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/histo-8af5ae339ad3c6c7)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::bucket_count ... ok
[INFO] [stdout] test tests::bucket_count_one ... ok
[INFO] [stdout] test tests::overflow_panic ... ok
[INFO] [stdout] test tests::num_buckets ... 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]      Running unittests (/opt/rustwide/target/debug/deps/histo-4449fd9711e2253e)
[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 histo
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76e5156a9dbdb1299c5321786dc064604f29615411135b8777232f15c49c46d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e5156a9dbdb1299c5321786dc064604f29615411135b8777232f15c49c46d4", kill_on_drop: false }`
[INFO] [stdout] 76e5156a9dbdb1299c5321786dc064604f29615411135b8777232f15c49c46d4
