[INFO] fetching crate cartesian 0.2.1...
[INFO] testing cartesian-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cartesian 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cartesian 0.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cartesian 0.2.1
[INFO] finished tweaking crates.io crate cartesian 0.2.1
[INFO] tweaked toml for crates.io crate cartesian 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de877711aae2baa2fcf5f3b5e3441b96542d1c7cf9079d11e625defa4a3ce75c
[INFO] running `Command { std: "docker" "start" "-a" "de877711aae2baa2fcf5f3b5e3441b96542d1c7cf9079d11e625defa4a3ce75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de877711aae2baa2fcf5f3b5e3441b96542d1c7cf9079d11e625defa4a3ce75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de877711aae2baa2fcf5f3b5e3441b96542d1c7cf9079d11e625defa4a3ce75c", kill_on_drop: false }`
[INFO] [stdout] de877711aae2baa2fcf5f3b5e3441b96542d1c7cf9079d11e625defa4a3ce75c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a337596074cc831f5f8887de93fc6fd177eaf97c60480a09f3059874a998739
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a337596074cc831f5f8887de93fc6fd177eaf97c60480a09f3059874a998739", kill_on_drop: false }`
[INFO] [stderr]    Compiling cartesian v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "3a337596074cc831f5f8887de93fc6fd177eaf97c60480a09f3059874a998739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a337596074cc831f5f8887de93fc6fd177eaf97c60480a09f3059874a998739", kill_on_drop: false }`
[INFO] [stdout] 3a337596074cc831f5f8887de93fc6fd177eaf97c60480a09f3059874a998739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 48bee5e56fd8cbfc204d8c3da9c0242f948e82941d15217e862cd4aa501d28e7
[INFO] running `Command { std: "docker" "start" "-a" "48bee5e56fd8cbfc204d8c3da9c0242f948e82941d15217e862cd4aa501d28e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cartesian v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "48bee5e56fd8cbfc204d8c3da9c0242f948e82941d15217e862cd4aa501d28e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48bee5e56fd8cbfc204d8c3da9c0242f948e82941d15217e862cd4aa501d28e7", kill_on_drop: false }`
[INFO] [stdout] 48bee5e56fd8cbfc204d8c3da9c0242f948e82941d15217e862cd4aa501d28e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f0d6259ef23571a85e419de46b23051ea67ba5a30396c288715cf6c9e79974d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6f0d6259ef23571a85e419de46b23051ea67ba5a30396c288715cf6c9e79974d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cartesian-b74730a0297d4dc9)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test two_combination ... ok
[INFO] [stdout] test matrix_multiplication ... ok
[INFO] [stdout] test binary_numbers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cartesian
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f0d6259ef23571a85e419de46b23051ea67ba5a30396c288715cf6c9e79974d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f0d6259ef23571a85e419de46b23051ea67ba5a30396c288715cf6c9e79974d", kill_on_drop: false }`
[INFO] [stdout] 6f0d6259ef23571a85e419de46b23051ea67ba5a30396c288715cf6c9e79974d