[INFO] fetching crate blake3-proof-of-work 0.2.1...
[INFO] testing blake3-proof-of-work-0.2.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate blake3-proof-of-work 0.2.1 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate blake3-proof-of-work 0.2.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blake3-proof-of-work 0.2.1
[INFO] finished tweaking crates.io crate blake3-proof-of-work 0.2.1
[INFO] tweaked toml for crates.io crate blake3-proof-of-work 0.2.1 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f01235ed1d3ab06e1afea6e0287e2c383fec4fe31bf5239814df7d15105cecf3
[INFO] running `Command { std: "docker" "start" "-a" "f01235ed1d3ab06e1afea6e0287e2c383fec4fe31bf5239814df7d15105cecf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f01235ed1d3ab06e1afea6e0287e2c383fec4fe31bf5239814df7d15105cecf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f01235ed1d3ab06e1afea6e0287e2c383fec4fe31bf5239814df7d15105cecf3", kill_on_drop: false }`
[INFO] [stdout] f01235ed1d3ab06e1afea6e0287e2c383fec4fe31bf5239814df7d15105cecf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71c4eff4e51dffea98fce6661e00b5df0ee1f7eb364f4ac752f4c9e9803ce661
[INFO] running `Command { std: "docker" "start" "-a" "71c4eff4e51dffea98fce6661e00b5df0ee1f7eb364f4ac752f4c9e9803ce661", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling blake3 v1.3.1
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling blake3-proof-of-work v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `Command { std: "docker" "inspect" "71c4eff4e51dffea98fce6661e00b5df0ee1f7eb364f4ac752f4c9e9803ce661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c4eff4e51dffea98fce6661e00b5df0ee1f7eb364f4ac752f4c9e9803ce661", kill_on_drop: false }`
[INFO] [stdout] 71c4eff4e51dffea98fce6661e00b5df0ee1f7eb364f4ac752f4c9e9803ce661
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9662b0fb9015fa55fa4b659ff117e0803676575c9ad257b3af43568fb7af5c2f
[INFO] running `Command { std: "docker" "start" "-a" "9662b0fb9015fa55fa4b659ff117e0803676575c9ad257b3af43568fb7af5c2f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling blake3-proof-of-work v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "9662b0fb9015fa55fa4b659ff117e0803676575c9ad257b3af43568fb7af5c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9662b0fb9015fa55fa4b659ff117e0803676575c9ad257b3af43568fb7af5c2f", kill_on_drop: false }`
[INFO] [stdout] 9662b0fb9015fa55fa4b659ff117e0803676575c9ad257b3af43568fb7af5c2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c67279850fb926be5853cf173b490fa4232ee2044671e717fc4cf35af9b59216
[INFO] running `Command { std: "docker" "start" "-a" "c67279850fb926be5853cf173b490fa4232ee2044671e717fc4cf35af9b59216", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blake3_proof_of_work-0f78d7091da3565a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::leading_zeros_works ... ok
[INFO] [stdout] test tests::search_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 12.41s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blake3-proof-of-work
[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" "c67279850fb926be5853cf173b490fa4232ee2044671e717fc4cf35af9b59216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67279850fb926be5853cf173b490fa4232ee2044671e717fc4cf35af9b59216", kill_on_drop: false }`
[INFO] [stdout] c67279850fb926be5853cf173b490fa4232ee2044671e717fc4cf35af9b59216