[INFO] fetching crate duo 0.1.0-alpha.0...
[INFO] checking duo-0.1.0-alpha.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate duo 0.1.0-alpha.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate duo 0.1.0-alpha.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duo 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate duo 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate duo 0.1.0-alpha.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded numext-fixed-uint-hack v0.1.4
[INFO] [stderr]   Downloaded numext-constructor v0.1.4
[INFO] [stderr]   Downloaded numext-fixed-uint-core v0.1.4
[INFO] [stderr]   Downloaded numext-fixed-uint v0.1.4
[INFO] [stderr]   Downloaded numext-fixed-hash v0.1.4
[INFO] [stderr]   Downloaded numext-fixed-hash-hack v0.1.4
[INFO] [stderr]   Downloaded numext-fixed-hash-core v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f75b45c197a52297d01c94f033368634119dd66c5d9a86bb8494132b1da2d2f
[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" "6f75b45c197a52297d01c94f033368634119dd66c5d9a86bb8494132b1da2d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f75b45c197a52297d01c94f033368634119dd66c5d9a86bb8494132b1da2d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f75b45c197a52297d01c94f033368634119dd66c5d9a86bb8494132b1da2d2f", kill_on_drop: false }`
[INFO] [stdout] 6f75b45c197a52297d01c94f033368634119dd66c5d9a86bb8494132b1da2d2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34c4e175b05aca17a1aa5206fbc79617ac369e5ba9cf4fcf4e50a8c8868e8e5b
[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" "34c4e175b05aca17a1aa5206fbc79617ac369e5ba9cf4fcf4e50a8c8868e8e5b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling secp256k1 v0.12.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling numext-constructor v0.1.4
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.4
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.4
[INFO] [stderr]    Compiling numext-fixed-uint v0.1.4
[INFO] [stderr]    Compiling numext-fixed-hash-core v0.1.4
[INFO] [stderr] error: could not compile `numext-fixed-hash-core`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name numext_fixed_hash_core --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/numext-fixed-hash-core-0.1.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=74aa94c033c10402 -C extra-filename=-74aa94c033c10402 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern failure=/opt/rustwide/target/debug/deps/libfailure-e37fbd79cbac07d3.rmeta --extern numext_constructor=/opt/rustwide/target/debug/deps/libnumext_constructor-d3d14e0275610f2a.so --extern numext_fixed_uint=/opt/rustwide/target/debug/deps/libnumext_fixed_uint-02b7f8d706ed59d9.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "34c4e175b05aca17a1aa5206fbc79617ac369e5ba9cf4fcf4e50a8c8868e8e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c4e175b05aca17a1aa5206fbc79617ac369e5ba9cf4fcf4e50a8c8868e8e5b", kill_on_drop: false }`
[INFO] [stdout] 34c4e175b05aca17a1aa5206fbc79617ac369e5ba9cf4fcf4e50a8c8868e8e5b