[INFO] fetching crate rust_learn 0.1.1...
[INFO] testing rust_learn-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rust_learn 0.1.1 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate rust_learn 0.1.1 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 rust_learn 0.1.1
[INFO] finished tweaking crates.io crate rust_learn 0.1.1
[INFO] tweaked toml for crates.io crate rust_learn 0.1.1 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate rust_learn 0.1.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 64934000b37e6aeb80c716b2814804a17b8e7df4a7d21b8938073b409c5d343a
[INFO] running `Command { std: "docker" "start" "-a" "64934000b37e6aeb80c716b2814804a17b8e7df4a7d21b8938073b409c5d343a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64934000b37e6aeb80c716b2814804a17b8e7df4a7d21b8938073b409c5d343a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64934000b37e6aeb80c716b2814804a17b8e7df4a7d21b8938073b409c5d343a", kill_on_drop: false }`
[INFO] [stdout] 64934000b37e6aeb80c716b2814804a17b8e7df4a7d21b8938073b409c5d343a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] cdf8a6e5c332d2def9b4edf4e005a45789e33ec33d2833767be9303a4b088f2b
[INFO] running `Command { std: "docker" "start" "-a" "cdf8a6e5c332d2def9b4edf4e005a45789e33ec33d2833767be9303a4b088f2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "cdf8a6e5c332d2def9b4edf4e005a45789e33ec33d2833767be9303a4b088f2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf8a6e5c332d2def9b4edf4e005a45789e33ec33d2833767be9303a4b088f2b", kill_on_drop: false }`
[INFO] [stdout] cdf8a6e5c332d2def9b4edf4e005a45789e33ec33d2833767be9303a4b088f2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 4bd76492a87e0a5563b307e96ba7299d8afae592ad443b9bcedbc11eb80d60bc
[INFO] running `Command { std: "docker" "start" "-a" "4bd76492a87e0a5563b307e96ba7299d8afae592ad443b9bcedbc11eb80d60bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_learn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learn-fd788afd85cacc91)
[INFO] running `Command { std: "docker" "inspect" "4bd76492a87e0a5563b307e96ba7299d8afae592ad443b9bcedbc11eb80d60bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd76492a87e0a5563b307e96ba7299d8afae592ad443b9bcedbc11eb80d60bc", kill_on_drop: false }`
[INFO] [stdout] 4bd76492a87e0a5563b307e96ba7299d8afae592ad443b9bcedbc11eb80d60bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] b44254f6a47fab35d1f124541a10939d945b7e0a40562ec29fbfc565106f88b4
[INFO] running `Command { std: "docker" "start" "-a" "b44254f6a47fab35d1f124541a10939d945b7e0a40562ec29fbfc565106f88b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learn-fd788afd85cacc91)
[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" "b44254f6a47fab35d1f124541a10939d945b7e0a40562ec29fbfc565106f88b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44254f6a47fab35d1f124541a10939d945b7e0a40562ec29fbfc565106f88b4", kill_on_drop: false }`
[INFO] [stdout] b44254f6a47fab35d1f124541a10939d945b7e0a40562ec29fbfc565106f88b4