[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[INFO] the lockfile is outdated, regenerating it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 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a1b78ed5e49457a3e3579fbb4e0eea950dddce64e336075c25d9bd1a8c18b362
[INFO] running `"docker" "start" "-a" "a1b78ed5e49457a3e3579fbb4e0eea950dddce64e336075c25d9bd1a8c18b362"`
[INFO] [stderr]    Compiling novec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "a1b78ed5e49457a3e3579fbb4e0eea950dddce64e336075c25d9bd1a8c18b362"`
[INFO] running `"docker" "rm" "-f" "a1b78ed5e49457a3e3579fbb4e0eea950dddce64e336075c25d9bd1a8c18b362"`
[INFO] [stdout] a1b78ed5e49457a3e3579fbb4e0eea950dddce64e336075c25d9bd1a8c18b362
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c6f0bd61679c27920134ac3e612868d19802d03777475c471be3a02a42d9e526
[INFO] running `"docker" "start" "-a" "c6f0bd61679c27920134ac3e612868d19802d03777475c471be3a02a42d9e526"`
[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 1.39s
[INFO] running `"docker" "inspect" "c6f0bd61679c27920134ac3e612868d19802d03777475c471be3a02a42d9e526"`
[INFO] running `"docker" "rm" "-f" "c6f0bd61679c27920134ac3e612868d19802d03777475c471be3a02a42d9e526"`
[INFO] [stdout] c6f0bd61679c27920134ac3e612868d19802d03777475c471be3a02a42d9e526
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 7b18b67a101a02ff3cb237015a58a0daabdc068490abee5cded10ba7c44b5ecb
[INFO] running `"docker" "start" "-a" "7b18b67a101a02ff3cb237015a58a0daabdc068490abee5cded10ba7c44b5ecb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/novec-f81a2fce25250f18
[INFO] [stderr]    Doc-tests novec
[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] [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" "7b18b67a101a02ff3cb237015a58a0daabdc068490abee5cded10ba7c44b5ecb"`
[INFO] running `"docker" "rm" "-f" "7b18b67a101a02ff3cb237015a58a0daabdc068490abee5cded10ba7c44b5ecb"`
[INFO] [stdout] 7b18b67a101a02ff3cb237015a58a0daabdc068490abee5cded10ba7c44b5ecb