[INFO] fetching crate umber 0.0.0...
[INFO] testing umber-0.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate umber 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate umber 0.0.0 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 umber 0.0.0
[INFO] finished tweaking crates.io crate umber 0.0.0
[INFO] tweaked toml for crates.io crate umber 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 96e71129c06b1eadf143ca13a97f4f824cc7c42695343b46f27d2c6f05f5e926
[INFO] running `Command { std: "docker" "start" "-a" "96e71129c06b1eadf143ca13a97f4f824cc7c42695343b46f27d2c6f05f5e926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96e71129c06b1eadf143ca13a97f4f824cc7c42695343b46f27d2c6f05f5e926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e71129c06b1eadf143ca13a97f4f824cc7c42695343b46f27d2c6f05f5e926", kill_on_drop: false }`
[INFO] [stdout] 96e71129c06b1eadf143ca13a97f4f824cc7c42695343b46f27d2c6f05f5e926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 76e808c55843bcba8f6a3ff988d6041b6e9cfe4eb250b598e736bf65e7d94f34
[INFO] running `Command { std: "docker" "start" "-a" "76e808c55843bcba8f6a3ff988d6041b6e9cfe4eb250b598e736bf65e7d94f34", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling umber v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "76e808c55843bcba8f6a3ff988d6041b6e9cfe4eb250b598e736bf65e7d94f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e808c55843bcba8f6a3ff988d6041b6e9cfe4eb250b598e736bf65e7d94f34", kill_on_drop: false }`
[INFO] [stdout] 76e808c55843bcba8f6a3ff988d6041b6e9cfe4eb250b598e736bf65e7d94f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7c764296ab8dea66a7b50803a2da28a511f2bc1bfae5fca396c11458a9ff7009
[INFO] running `Command { std: "docker" "start" "-a" "7c764296ab8dea66a7b50803a2da28a511f2bc1bfae5fca396c11458a9ff7009", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling umber v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/umber-6d4086f155ba7ef4)
[INFO] running `Command { std: "docker" "inspect" "7c764296ab8dea66a7b50803a2da28a511f2bc1bfae5fca396c11458a9ff7009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c764296ab8dea66a7b50803a2da28a511f2bc1bfae5fca396c11458a9ff7009", kill_on_drop: false }`
[INFO] [stdout] 7c764296ab8dea66a7b50803a2da28a511f2bc1bfae5fca396c11458a9ff7009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] cd9d189fd6a04e098686aeec4d9fb7bfe7cbe77a23c43acc1ef0c33a00fb4adf
[INFO] running `Command { std: "docker" "start" "-a" "cd9d189fd6a04e098686aeec4d9fb7bfe7cbe77a23c43acc1ef0c33a00fb4adf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/umber-6d4086f155ba7ef4)
[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" "cd9d189fd6a04e098686aeec4d9fb7bfe7cbe77a23c43acc1ef0c33a00fb4adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9d189fd6a04e098686aeec4d9fb7bfe7cbe77a23c43acc1ef0c33a00fb4adf", kill_on_drop: false }`
[INFO] [stdout] cd9d189fd6a04e098686aeec4d9fb7bfe7cbe77a23c43acc1ef0c33a00fb4adf