[INFO] fetching crate blunders 0.1.0...
[INFO] testing blunders-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate blunders 0.1.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate blunders 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blunders 0.1.0
[INFO] finished tweaking crates.io crate blunders 0.1.0
[INFO] tweaked toml for crates.io crate blunders 0.1.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate crates.io crate blunders 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08674bc541ad81e4bdb4b1b7a8d7afaf124c0df1a4f954e53537234eada53f02
[INFO] running `Command { std: "docker" "start" "-a" "08674bc541ad81e4bdb4b1b7a8d7afaf124c0df1a4f954e53537234eada53f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08674bc541ad81e4bdb4b1b7a8d7afaf124c0df1a4f954e53537234eada53f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08674bc541ad81e4bdb4b1b7a8d7afaf124c0df1a4f954e53537234eada53f02", kill_on_drop: false }`
[INFO] [stdout] 08674bc541ad81e4bdb4b1b7a8d7afaf124c0df1a4f954e53537234eada53f02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 288690d7c33792f2cb24ce8fbed5e06f717aa1b282ae77ea57ccae25b8fe967f
[INFO] running `Command { std: "docker" "start" "-a" "288690d7c33792f2cb24ce8fbed5e06f717aa1b282ae77ea57ccae25b8fe967f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling blunders-engine v0.1.0
[INFO] [stderr]    Compiling blunders v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.80s
[INFO] running `Command { std: "docker" "inspect" "288690d7c33792f2cb24ce8fbed5e06f717aa1b282ae77ea57ccae25b8fe967f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "288690d7c33792f2cb24ce8fbed5e06f717aa1b282ae77ea57ccae25b8fe967f", kill_on_drop: false }`
[INFO] [stdout] 288690d7c33792f2cb24ce8fbed5e06f717aa1b282ae77ea57ccae25b8fe967f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e3a6ce9963baab9c85a2abcfed7564090d161546febcb6030eecf9be5c9aff8
[INFO] running `Command { std: "docker" "start" "-a" "0e3a6ce9963baab9c85a2abcfed7564090d161546febcb6030eecf9be5c9aff8", 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] [stderr]    Compiling blunders v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/blunders-b3e200cfc0371945)
[INFO] running `Command { std: "docker" "inspect" "0e3a6ce9963baab9c85a2abcfed7564090d161546febcb6030eecf9be5c9aff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3a6ce9963baab9c85a2abcfed7564090d161546febcb6030eecf9be5c9aff8", kill_on_drop: false }`
[INFO] [stdout] 0e3a6ce9963baab9c85a2abcfed7564090d161546febcb6030eecf9be5c9aff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6937aadc8b46aecc7082675b47a711f4eb1d4d2eba1851208b13872ab18262f4
[INFO] running `Command { std: "docker" "start" "-a" "6937aadc8b46aecc7082675b47a711f4eb1d4d2eba1851208b13872ab18262f4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blunders-b3e200cfc0371945)
[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" "6937aadc8b46aecc7082675b47a711f4eb1d4d2eba1851208b13872ab18262f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6937aadc8b46aecc7082675b47a711f4eb1d4d2eba1851208b13872ab18262f4", kill_on_drop: false }`
[INFO] [stdout] 6937aadc8b46aecc7082675b47a711f4eb1d4d2eba1851208b13872ab18262f4