[INFO] fetching crate poc 0.0.0...
[INFO] testing poc-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate poc 0.0.0 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate poc 0.0.0 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 poc 0.0.0
[INFO] finished tweaking crates.io crate poc 0.0.0
[INFO] tweaked toml for crates.io crate poc 0.0.0 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-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-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] bb08091d4e9a7b5ad54f16c4b23c819f6e8a73b56fcb0fb565eaf7c51c0f7dfa
[INFO] running `Command { std: "docker" "start" "-a" "bb08091d4e9a7b5ad54f16c4b23c819f6e8a73b56fcb0fb565eaf7c51c0f7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb08091d4e9a7b5ad54f16c4b23c819f6e8a73b56fcb0fb565eaf7c51c0f7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb08091d4e9a7b5ad54f16c4b23c819f6e8a73b56fcb0fb565eaf7c51c0f7dfa", kill_on_drop: false }`
[INFO] [stdout] bb08091d4e9a7b5ad54f16c4b23c819f6e8a73b56fcb0fb565eaf7c51c0f7dfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] baf53495a86659ffaa548a489bdc157d3da85b491baa88e95c3dd07d44011994
[INFO] running `Command { std: "docker" "start" "-a" "baf53495a86659ffaa548a489bdc157d3da85b491baa88e95c3dd07d44011994", kill_on_drop: false }`
[INFO] [stderr]    Compiling poc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "baf53495a86659ffaa548a489bdc157d3da85b491baa88e95c3dd07d44011994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf53495a86659ffaa548a489bdc157d3da85b491baa88e95c3dd07d44011994", kill_on_drop: false }`
[INFO] [stdout] baf53495a86659ffaa548a489bdc157d3da85b491baa88e95c3dd07d44011994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] 311c9f9dfb9e0c6eb24305bd747ead15d9f81b43c4828a150bed487d7b1a34a5
[INFO] running `Command { std: "docker" "start" "-a" "311c9f9dfb9e0c6eb24305bd747ead15d9f81b43c4828a150bed487d7b1a34a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling poc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "311c9f9dfb9e0c6eb24305bd747ead15d9f81b43c4828a150bed487d7b1a34a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "311c9f9dfb9e0c6eb24305bd747ead15d9f81b43c4828a150bed487d7b1a34a5", kill_on_drop: false }`
[INFO] [stdout] 311c9f9dfb9e0c6eb24305bd747ead15d9f81b43c4828a150bed487d7b1a34a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] c75ac704bb06b7d52064e7956155c535cdfb60daf2fd1cdea9b7d6ae9a1b133f
[INFO] running `Command { std: "docker" "start" "-a" "c75ac704bb06b7d52064e7956155c535cdfb60daf2fd1cdea9b7d6ae9a1b133f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poc-1b28e48acd347de1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests poc
[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" "c75ac704bb06b7d52064e7956155c535cdfb60daf2fd1cdea9b7d6ae9a1b133f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75ac704bb06b7d52064e7956155c535cdfb60daf2fd1cdea9b7d6ae9a1b133f", kill_on_drop: false }`
[INFO] [stdout] c75ac704bb06b7d52064e7956155c535cdfb60daf2fd1cdea9b7d6ae9a1b133f