[INFO] updating cached repository Tarv3/novec
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Tarv3/novec
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Tarv3/novec" "work/ex/beta-1.37-6/sources/1.36.0/gh/Tarv3/novec"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Tarv3/novec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Tarv3/novec" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7776add15ed3b98b38faca78c72cead26ecfbac
[INFO] sha for GitHub repo Tarv3/novec: b7776add15ed3b98b38faca78c72cead26ecfbac
[INFO] validating manifest of Tarv3/novec on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Tarv3/novec on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Tarv3/novec
[INFO] finished frobbing Tarv3/novec
[INFO] frobbed toml for Tarv3/novec written to work/ex/beta-1.37-6/sources/1.36.0/gh/Tarv3/novec/Cargo.toml
[INFO] started frobbing Tarv3/novec
[INFO] finished frobbing Tarv3/novec
[INFO] frobbed toml for Tarv3/novec written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec/Cargo.toml
[INFO] crate Tarv3/novec already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Tarv3/novec/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Tarv3/novec against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e1859b8029fc4c3df438732983061cbb3ee074d1a8d6d904535cb998c8d6cb35
[INFO] running `"docker" "start" "-a" "e1859b8029fc4c3df438732983061cbb3ee074d1a8d6d904535cb998c8d6cb35"`
[INFO] [stderr]    Compiling novec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "e1859b8029fc4c3df438732983061cbb3ee074d1a8d6d904535cb998c8d6cb35"`
[INFO] running `"docker" "rm" "-f" "e1859b8029fc4c3df438732983061cbb3ee074d1a8d6d904535cb998c8d6cb35"`
[INFO] [stdout] e1859b8029fc4c3df438732983061cbb3ee074d1a8d6d904535cb998c8d6cb35
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9b37e5a399ba4c1d8ed0f65e324faca36b7f9d2f6983491b2d42a75c72e7b56d
[INFO] running `"docker" "start" "-a" "9b37e5a399ba4c1d8ed0f65e324faca36b7f9d2f6983491b2d42a75c72e7b56d"`
[INFO] [stderr]    Compiling novec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]    --> src/lib.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |     let output = vec.remove(3);
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "9b37e5a399ba4c1d8ed0f65e324faca36b7f9d2f6983491b2d42a75c72e7b56d"`
[INFO] running `"docker" "rm" "-f" "9b37e5a399ba4c1d8ed0f65e324faca36b7f9d2f6983491b2d42a75c72e7b56d"`
[INFO] [stdout] 9b37e5a399ba4c1d8ed0f65e324faca36b7f9d2f6983491b2d42a75c72e7b56d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Tarv3/novec:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] f676ef556f14a5b75a9c4c4fc865ba869a70ddcf97723ad82ec2f5c3cc577df5
[INFO] running `"docker" "start" "-a" "f676ef556f14a5b75a9c4c4fc865ba869a70ddcf97723ad82ec2f5c3cc577df5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/novec-39668ad5966dd05b
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests novec
[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" "f676ef556f14a5b75a9c4c4fc865ba869a70ddcf97723ad82ec2f5c3cc577df5"`
[INFO] running `"docker" "rm" "-f" "f676ef556f14a5b75a9c4c4fc865ba869a70ddcf97723ad82ec2f5c3cc577df5"`
[INFO] [stdout] f676ef556f14a5b75a9c4c4fc865ba869a70ddcf97723ad82ec2f5c3cc577df5