[INFO] fetching crate fold_impls 0.0.0...
[INFO] testing fold_impls-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate fold_impls 0.0.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate fold_impls 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 fold_impls 0.0.0
[INFO] finished tweaking crates.io crate fold_impls 0.0.0
[INFO] tweaked toml for crates.io crate fold_impls 0.0.0 written to /workspace/builds/worker-24/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] db0be7ba2240bbd7a3ec5896404d5bc30410efdb13cf5a968044459fb4122a88
[INFO] running `Command { std: "docker" "start" "-a" "db0be7ba2240bbd7a3ec5896404d5bc30410efdb13cf5a968044459fb4122a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db0be7ba2240bbd7a3ec5896404d5bc30410efdb13cf5a968044459fb4122a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0be7ba2240bbd7a3ec5896404d5bc30410efdb13cf5a968044459fb4122a88", kill_on_drop: false }`
[INFO] [stdout] db0be7ba2240bbd7a3ec5896404d5bc30410efdb13cf5a968044459fb4122a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 4a1574a114f739c84f01530026375292c7455ab4d3a17af0139008baa30471c7
[INFO] running `Command { std: "docker" "start" "-a" "4a1574a114f739c84f01530026375292c7455ab4d3a17af0139008baa30471c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling fold_impls v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.96s
[INFO] running `Command { std: "docker" "inspect" "4a1574a114f739c84f01530026375292c7455ab4d3a17af0139008baa30471c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1574a114f739c84f01530026375292c7455ab4d3a17af0139008baa30471c7", kill_on_drop: false }`
[INFO] [stdout] 4a1574a114f739c84f01530026375292c7455ab4d3a17af0139008baa30471c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 22d4cb2c5294a4e3e89bed678b2e4ff489331a6db155645d4bf3dff2fc5193d8
[INFO] running `Command { std: "docker" "start" "-a" "22d4cb2c5294a4e3e89bed678b2e4ff489331a6db155645d4bf3dff2fc5193d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling fold_impls v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "22d4cb2c5294a4e3e89bed678b2e4ff489331a6db155645d4bf3dff2fc5193d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22d4cb2c5294a4e3e89bed678b2e4ff489331a6db155645d4bf3dff2fc5193d8", kill_on_drop: false }`
[INFO] [stdout] 22d4cb2c5294a4e3e89bed678b2e4ff489331a6db155645d4bf3dff2fc5193d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] ec3f18497725c88a3c6b7ff01c1726c5ac99c33e1b00762484e78fad99c5bcf3
[INFO] running `Command { std: "docker" "start" "-a" "ec3f18497725c88a3c6b7ff01c1726c5ac99c33e1b00762484e78fad99c5bcf3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fold_impls-f20d1a1deb783566)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fold_impls
[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] [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" "ec3f18497725c88a3c6b7ff01c1726c5ac99c33e1b00762484e78fad99c5bcf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3f18497725c88a3c6b7ff01c1726c5ac99c33e1b00762484e78fad99c5bcf3", kill_on_drop: false }`
[INFO] [stdout] ec3f18497725c88a3c6b7ff01c1726c5ac99c33e1b00762484e78fad99c5bcf3