[INFO] updating cached repository https://github.com/Woyten/math-util
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ac824440152248228880fd4b32ca5066bfb80077
[INFO] testing Woyten/math-util against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FWoyten%2Fmath-util" "work/builds/worker-11/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Woyten/math-util on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Woyten/math-util
[INFO] finished tweaking git repo https://github.com/Woyten/math-util
[INFO] tweaked toml for git repo https://github.com/Woyten/math-util written to work/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Woyten/math-util already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 03a4ba678cf301e6a15ea1ccbd7dbd78c01234241c6575a976f3fd122da1b089
[INFO] running `"docker" "start" "-a" "03a4ba678cf301e6a15ea1ccbd7dbd78c01234241c6575a976f3fd122da1b089"`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rustfft v2.1.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling nalgebra v0.16.8
[INFO] [stderr]    Compiling math-util v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.99s
[INFO] running `"docker" "inspect" "03a4ba678cf301e6a15ea1ccbd7dbd78c01234241c6575a976f3fd122da1b089"`
[INFO] running `"docker" "rm" "-f" "03a4ba678cf301e6a15ea1ccbd7dbd78c01234241c6575a976f3fd122da1b089"`
[INFO] [stdout] 03a4ba678cf301e6a15ea1ccbd7dbd78c01234241c6575a976f3fd122da1b089
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 20ca5b3196c379e3ebd191d9d3f92cb56e00f5f45e9561e34050a537a26cb66f
[INFO] running `"docker" "start" "-a" "20ca5b3196c379e3ebd191d9d3f92cb56e00f5f45e9561e34050a537a26cb66f"`
[INFO] [stderr]    Compiling math-util v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `num`
[INFO] [stderr]  --> examples/benchmark.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use num::Complex;
[INFO] [stderr]   |     ^^^ help: a similar path exists: `std::num`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `math-util`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "20ca5b3196c379e3ebd191d9d3f92cb56e00f5f45e9561e34050a537a26cb66f"`
[INFO] running `"docker" "rm" "-f" "20ca5b3196c379e3ebd191d9d3f92cb56e00f5f45e9561e34050a537a26cb66f"`
[INFO] [stdout] 20ca5b3196c379e3ebd191d9d3f92cb56e00f5f45e9561e34050a537a26cb66f