[INFO] fetching crate rusty-kernel-tools 0.1.1...
[INFO] testing rusty-kernel-tools-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rusty-kernel-tools 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rusty-kernel-tools 0.1.1 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 rusty-kernel-tools 0.1.1
[INFO] finished tweaking crates.io crate rusty-kernel-tools 0.1.1
[INFO] tweaked toml for crates.io crate rusty-kernel-tools 0.1.1 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] ac18ed356bdc84933399cdfa4c9b2c619284c2456301c66d18fcb2a62554bb0c
[INFO] running `Command { std: "docker" "start" "-a" "ac18ed356bdc84933399cdfa4c9b2c619284c2456301c66d18fcb2a62554bb0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac18ed356bdc84933399cdfa4c9b2c619284c2456301c66d18fcb2a62554bb0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac18ed356bdc84933399cdfa4c9b2c619284c2456301c66d18fcb2a62554bb0c", kill_on_drop: false }`
[INFO] [stdout] ac18ed356bdc84933399cdfa4c9b2c619284c2456301c66d18fcb2a62554bb0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c61927a49ae567cced4826fe0d98f9a579872e944f92d9436b4dd2caaa09fa23
[INFO] running `Command { std: "docker" "start" "-a" "c61927a49ae567cced4826fe0d98f9a579872e944f92d9436b4dd2caaa09fa23", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling rusty-kernel-tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.70s
[INFO] running `Command { std: "docker" "inspect" "c61927a49ae567cced4826fe0d98f9a579872e944f92d9436b4dd2caaa09fa23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61927a49ae567cced4826fe0d98f9a579872e944f92d9436b4dd2caaa09fa23", kill_on_drop: false }`
[INFO] [stdout] c61927a49ae567cced4826fe0d98f9a579872e944f92d9436b4dd2caaa09fa23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] 311922d06915e1536c49d14524f602bee4d045b80f92614ddd475c4fceeaa43d
[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" "311922d06915e1536c49d14524f602bee4d045b80f92614ddd475c4fceeaa43d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-kernel-tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "311922d06915e1536c49d14524f602bee4d045b80f92614ddd475c4fceeaa43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "311922d06915e1536c49d14524f602bee4d045b80f92614ddd475c4fceeaa43d", kill_on_drop: false }`
[INFO] [stdout] 311922d06915e1536c49d14524f602bee4d045b80f92614ddd475c4fceeaa43d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1520963e5240fc6180aa96d07d6c60e5d7ec686a1cb24a558d458017a4a8ac35
[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" "1520963e5240fc6180aa96d07d6c60e5d7ec686a1cb24a558d458017a4a8ac35", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_kernel_tools-ef179037e603d3f0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_kernel_tools
[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" "1520963e5240fc6180aa96d07d6c60e5d7ec686a1cb24a558d458017a4a8ac35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1520963e5240fc6180aa96d07d6c60e5d7ec686a1cb24a558d458017a4a8ac35", kill_on_drop: false }`
[INFO] [stdout] 1520963e5240fc6180aa96d07d6c60e5d7ec686a1cb24a558d458017a4a8ac35