[INFO] fetching crate basic_math_operation 0.1.0...
[INFO] testing basic_math_operation-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate basic_math_operation 0.1.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate basic_math_operation 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 basic_math_operation 0.1.0
[INFO] finished tweaking crates.io crate basic_math_operation 0.1.0
[INFO] tweaked toml for crates.io crate basic_math_operation 0.1.0 written to /workspace/builds/worker-100/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] f0833b77d1f1d2c13207bea7489f8865016333b0b56cdb7e8e37c6535e1a5958
[INFO] running `Command { std: "docker" "start" "-a" "f0833b77d1f1d2c13207bea7489f8865016333b0b56cdb7e8e37c6535e1a5958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0833b77d1f1d2c13207bea7489f8865016333b0b56cdb7e8e37c6535e1a5958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0833b77d1f1d2c13207bea7489f8865016333b0b56cdb7e8e37c6535e1a5958", kill_on_drop: false }`
[INFO] [stdout] f0833b77d1f1d2c13207bea7489f8865016333b0b56cdb7e8e37c6535e1a5958
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] 530c0119446d1e736c98fe8a01b15686e05fac4256a8b7a38e75c2b643db3fa6
[INFO] running `Command { std: "docker" "start" "-a" "530c0119446d1e736c98fe8a01b15686e05fac4256a8b7a38e75c2b643db3fa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic_math_operation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "530c0119446d1e736c98fe8a01b15686e05fac4256a8b7a38e75c2b643db3fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530c0119446d1e736c98fe8a01b15686e05fac4256a8b7a38e75c2b643db3fa6", kill_on_drop: false }`
[INFO] [stdout] 530c0119446d1e736c98fe8a01b15686e05fac4256a8b7a38e75c2b643db3fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] 5c1f598d1312a11f38d3fa6e81fda1af2e61db5ea4d276f94c049d49b23e6eae
[INFO] running `Command { std: "docker" "start" "-a" "5c1f598d1312a11f38d3fa6e81fda1af2e61db5ea4d276f94c049d49b23e6eae", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic_math_operation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "5c1f598d1312a11f38d3fa6e81fda1af2e61db5ea4d276f94c049d49b23e6eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1f598d1312a11f38d3fa6e81fda1af2e61db5ea4d276f94c049d49b23e6eae", kill_on_drop: false }`
[INFO] [stdout] 5c1f598d1312a11f38d3fa6e81fda1af2e61db5ea4d276f94c049d49b23e6eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] ef09dcb9581f56da495c8c33e613a4e990b0630e29b26a2b8e332ce95e3069cb
[INFO] running `Command { std: "docker" "start" "-a" "ef09dcb9581f56da495c8c33e613a4e990b0630e29b26a2b8e332ce95e3069cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/basic_math_operation-bf812cb2b4720538)
[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] [stderr]    Doc-tests basic_math_operation
[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" "ef09dcb9581f56da495c8c33e613a4e990b0630e29b26a2b8e332ce95e3069cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef09dcb9581f56da495c8c33e613a4e990b0630e29b26a2b8e332ce95e3069cb", kill_on_drop: false }`
[INFO] [stdout] ef09dcb9581f56da495c8c33e613a4e990b0630e29b26a2b8e332ce95e3069cb