[INFO] fetching crate flipacoin 0.1.0...
[INFO] testing flipacoin-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flipacoin 0.1.0 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate flipacoin 0.1.0 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 flipacoin 0.1.0
[INFO] finished tweaking crates.io crate flipacoin 0.1.0
[INFO] tweaked toml for crates.io crate flipacoin 0.1.0 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate crates.io crate flipacoin 0.1.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 8cfeb22d9828382439a6e2d970b2c428600abea9aae1e59df58163a73d5f561c
[INFO] running `Command { std: "docker" "start" "-a" "8cfeb22d9828382439a6e2d970b2c428600abea9aae1e59df58163a73d5f561c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cfeb22d9828382439a6e2d970b2c428600abea9aae1e59df58163a73d5f561c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfeb22d9828382439a6e2d970b2c428600abea9aae1e59df58163a73d5f561c", kill_on_drop: false }`
[INFO] [stdout] 8cfeb22d9828382439a6e2d970b2c428600abea9aae1e59df58163a73d5f561c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 11aa60616fbd60dc346083329bd95c55c00a4a3c24bf418f46adeae991c9c30d
[INFO] running `Command { std: "docker" "start" "-a" "11aa60616fbd60dc346083329bd95c55c00a4a3c24bf418f46adeae991c9c30d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling flipacoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `Command { std: "docker" "inspect" "11aa60616fbd60dc346083329bd95c55c00a4a3c24bf418f46adeae991c9c30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11aa60616fbd60dc346083329bd95c55c00a4a3c24bf418f46adeae991c9c30d", kill_on_drop: false }`
[INFO] [stdout] 11aa60616fbd60dc346083329bd95c55c00a4a3c24bf418f46adeae991c9c30d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] ee92cf1cdd88b02faca106be645391ac5863f0ea3cbbed9f14bcb2fb53ea4635
[INFO] running `Command { std: "docker" "start" "-a" "ee92cf1cdd88b02faca106be645391ac5863f0ea3cbbed9f14bcb2fb53ea4635", kill_on_drop: false }`
[INFO] [stderr]    Compiling flipacoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "ee92cf1cdd88b02faca106be645391ac5863f0ea3cbbed9f14bcb2fb53ea4635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee92cf1cdd88b02faca106be645391ac5863f0ea3cbbed9f14bcb2fb53ea4635", kill_on_drop: false }`
[INFO] [stdout] ee92cf1cdd88b02faca106be645391ac5863f0ea3cbbed9f14bcb2fb53ea4635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 96a104ac54eaf24e4c7d8ddd15c2ec58514e45fe092304e7096528ecbb1de819
[INFO] running `Command { std: "docker" "start" "-a" "96a104ac54eaf24e4c7d8ddd15c2ec58514e45fe092304e7096528ecbb1de819", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flip-e3336a9c62c3418b)
[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" "96a104ac54eaf24e4c7d8ddd15c2ec58514e45fe092304e7096528ecbb1de819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a104ac54eaf24e4c7d8ddd15c2ec58514e45fe092304e7096528ecbb1de819", kill_on_drop: false }`
[INFO] [stdout] 96a104ac54eaf24e4c7d8ddd15c2ec58514e45fe092304e7096528ecbb1de819