[INFO] updating cached repository mwalczyk/four
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mwalczyk/four
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mwalczyk/four" "work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mwalczyk/four" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/four"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/four'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73a77ea4412d7ff253f26b771b72277aff2eb7ac
[INFO] sha for GitHub repo mwalczyk/four: 73a77ea4412d7ff253f26b771b72277aff2eb7ac
[INFO] validating manifest of mwalczyk/four on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mwalczyk/four on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mwalczyk/four
[INFO] finished frobbing mwalczyk/four
[INFO] frobbed toml for mwalczyk/four written to work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four/Cargo.toml
[INFO] started frobbing mwalczyk/four
[INFO] finished frobbing mwalczyk/four
[INFO] frobbed toml for mwalczyk/four written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/four/Cargo.toml
[INFO] crate mwalczyk/four already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mwalczyk/four against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 0416883da53c91ecf7b19f0e068b4e85fe0a11423d6b13d2cd23361ff9c8828e
[INFO] running `"docker" "start" "-a" "0416883da53c91ecf7b19f0e068b4e85fe0a11423d6b13d2cd23361ff9c8828e"`
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling x11-dl v2.17.3
[INFO] [stderr]    Compiling shared_library v0.1.8
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling cgmath v0.15.0
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling glutin v0.10.1
[INFO] [stderr]    Compiling rayon v1.0.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling wayland-window v0.8.0
[INFO] [stderr]    Compiling winit v0.8.3
[INFO] [stderr]    Compiling four v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mesh.rs:234:17
[INFO] [stderr]     |
[INFO] [stderr] 234 |             let mut prev_len = tetrahedrons.len();
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "0416883da53c91ecf7b19f0e068b4e85fe0a11423d6b13d2cd23361ff9c8828e"`
[INFO] running `"docker" "rm" "-f" "0416883da53c91ecf7b19f0e068b4e85fe0a11423d6b13d2cd23361ff9c8828e"`
[INFO] [stdout] 0416883da53c91ecf7b19f0e068b4e85fe0a11423d6b13d2cd23361ff9c8828e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d1102d42282db28f87d5d6f4106f065db7c3aba5c4c4ccd19437a814ec295d4b
[INFO] running `"docker" "start" "-a" "d1102d42282db28f87d5d6f4106f065db7c3aba5c4c4ccd19437a814ec295d4b"`
[INFO] [stderr]    Compiling four v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mesh.rs:234:17
[INFO] [stderr]     |
[INFO] [stderr] 234 |             let mut prev_len = tetrahedrons.len();
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `"docker" "inspect" "d1102d42282db28f87d5d6f4106f065db7c3aba5c4c4ccd19437a814ec295d4b"`
[INFO] running `"docker" "rm" "-f" "d1102d42282db28f87d5d6f4106f065db7c3aba5c4c4ccd19437a814ec295d4b"`
[INFO] [stdout] d1102d42282db28f87d5d6f4106f065db7c3aba5c4c4ccd19437a814ec295d4b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/four:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a314434b2d8c7a6001815cff31d58637860e3ba1f1d26d49d8dac4314073b59c
[INFO] running `"docker" "start" "-a" "a314434b2d8c7a6001815cff31d58637860e3ba1f1d26d49d8dac4314073b59c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/four-f818ffb9a3a48ea1
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a314434b2d8c7a6001815cff31d58637860e3ba1f1d26d49d8dac4314073b59c"`
[INFO] running `"docker" "rm" "-f" "a314434b2d8c7a6001815cff31d58637860e3ba1f1d26d49d8dac4314073b59c"`
[INFO] [stdout] a314434b2d8c7a6001815cff31d58637860e3ba1f1d26d49d8dac4314073b59c