[INFO] fetching crate tau 1.0.4...
[INFO] testing tau-1.0.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tau 1.0.4 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate tau 1.0.4 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 tau 1.0.4
[INFO] finished tweaking crates.io crate tau 1.0.4
[INFO] tweaked toml for crates.io crate tau 1.0.4 written to /workspace/builds/worker-15/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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bc35e30e389ad52893c301fcc3675043adc6a1e0da5fac1d7c29b346587be4f3
[INFO] running `Command { std: "docker" "start" "-a" "bc35e30e389ad52893c301fcc3675043adc6a1e0da5fac1d7c29b346587be4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc35e30e389ad52893c301fcc3675043adc6a1e0da5fac1d7c29b346587be4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc35e30e389ad52893c301fcc3675043adc6a1e0da5fac1d7c29b346587be4f3", kill_on_drop: false }`
[INFO] [stdout] bc35e30e389ad52893c301fcc3675043adc6a1e0da5fac1d7c29b346587be4f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 09b78cb49274a36f9da399c70ebee6ec51fa91b5ad5aa4f035e5ae2e7bc41691
[INFO] running `Command { std: "docker" "start" "-a" "09b78cb49274a36f9da399c70ebee6ec51fa91b5ad5aa4f035e5ae2e7bc41691", kill_on_drop: false }`
[INFO] [stderr]    Compiling tau v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "09b78cb49274a36f9da399c70ebee6ec51fa91b5ad5aa4f035e5ae2e7bc41691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b78cb49274a36f9da399c70ebee6ec51fa91b5ad5aa4f035e5ae2e7bc41691", kill_on_drop: false }`
[INFO] [stdout] 09b78cb49274a36f9da399c70ebee6ec51fa91b5ad5aa4f035e5ae2e7bc41691
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] fa8234a1a89742c72cff719063c723d5ae19d36ef2d0157d3d978e34186e8f38
[INFO] running `Command { std: "docker" "start" "-a" "fa8234a1a89742c72cff719063c723d5ae19d36ef2d0157d3d978e34186e8f38", kill_on_drop: false }`
[INFO] [stderr]    Compiling tau v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "fa8234a1a89742c72cff719063c723d5ae19d36ef2d0157d3d978e34186e8f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8234a1a89742c72cff719063c723d5ae19d36ef2d0157d3d978e34186e8f38", kill_on_drop: false }`
[INFO] [stdout] fa8234a1a89742c72cff719063c723d5ae19d36ef2d0157d3d978e34186e8f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 3100226e2867b8d46dc133ecdd9a82b0bab380d3da2d0e2bc4dcc7ae60ab5a97
[INFO] running `Command { std: "docker" "start" "-a" "3100226e2867b8d46dc133ecdd9a82b0bab380d3da2d0e2bc4dcc7ae60ab5a97", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tau-2c01f92859cc69fc)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tau
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::pi_is_a_derived_constant ... 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] [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" "3100226e2867b8d46dc133ecdd9a82b0bab380d3da2d0e2bc4dcc7ae60ab5a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3100226e2867b8d46dc133ecdd9a82b0bab380d3da2d0e2bc4dcc7ae60ab5a97", kill_on_drop: false }`
[INFO] [stdout] 3100226e2867b8d46dc133ecdd9a82b0bab380d3da2d0e2bc4dcc7ae60ab5a97