[INFO] fetching crate uom 0.30.0...
[INFO] testing uom-0.30.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate uom 0.30.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate uom 0.30.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uom 0.30.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate uom 0.30.0
[INFO] tweaked toml for crates.io crate uom 0.30.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate uom 0.30.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe898b8c3d59ec6da015795b2a64dc5abc5c85856ebfd0713c4a03048fdeeb71
[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" "fe898b8c3d59ec6da015795b2a64dc5abc5c85856ebfd0713c4a03048fdeeb71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe898b8c3d59ec6da015795b2a64dc5abc5c85856ebfd0713c4a03048fdeeb71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe898b8c3d59ec6da015795b2a64dc5abc5c85856ebfd0713c4a03048fdeeb71", kill_on_drop: false }`
[INFO] [stdout] fe898b8c3d59ec6da015795b2a64dc5abc5c85856ebfd0713c4a03048fdeeb71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f086369e91c8427884592dda7860f2e05dc37622808f15904423579b2f1890f
[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" "1f086369e91c8427884592dda7860f2e05dc37622808f15904423579b2f1890f", kill_on_drop: false }`
[INFO] [stderr]    Compiling uom v0.30.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.56s
[INFO] running `Command { std: "docker" "inspect" "1f086369e91c8427884592dda7860f2e05dc37622808f15904423579b2f1890f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f086369e91c8427884592dda7860f2e05dc37622808f15904423579b2f1890f", kill_on_drop: false }`
[INFO] [stdout] 1f086369e91c8427884592dda7860f2e05dc37622808f15904423579b2f1890f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 57f303e96cf6a65249cfae55ac5fa09f0641490aa757eef2a42959c09f7bc33f
[INFO] running `Command { std: "docker" "start" "-a" "57f303e96cf6a65249cfae55ac5fa09f0641490aa757eef2a42959c09f7bc33f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling uom v0.30.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `uom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name uom --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="autoconvert"' --cfg 'feature="default"' --cfg 'feature="f32"' --cfg 'feature="f64"' --cfg 'feature="si"' --cfg 'feature="std"' -C metadata=c1fb5da0bfac5bbe -C extra-filename=-c1fb5da0bfac5bbe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-ccdc01a5cb0c69d0.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-2526d98766747d91.rlib --extern quickcheck=/opt/rustwide/target/debug/deps/libquickcheck-d3d090c66a1792b8.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b9945d409e837e9a.rlib --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-ac453ec36b9d397e.rlib --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-a5e8dd74bd8dfb37.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "57f303e96cf6a65249cfae55ac5fa09f0641490aa757eef2a42959c09f7bc33f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f303e96cf6a65249cfae55ac5fa09f0641490aa757eef2a42959c09f7bc33f", kill_on_drop: false }`
[INFO] [stdout] 57f303e96cf6a65249cfae55ac5fa09f0641490aa757eef2a42959c09f7bc33f