[INFO] updating cached repository Rohrschacht/hashfilter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Rohrschacht/hashfilter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Rohrschacht/hashfilter" "work/ex/beta-1.38-1/sources/1.37.0/gh/Rohrschacht/hashfilter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Rohrschacht/hashfilter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Rohrschacht/hashfilter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b43d7832cad729746d31fc51698a25eaa1722eb
[INFO] sha for GitHub repo Rohrschacht/hashfilter: 1b43d7832cad729746d31fc51698a25eaa1722eb
[INFO] validating manifest of Rohrschacht/hashfilter 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 Rohrschacht/hashfilter 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 Rohrschacht/hashfilter
[INFO] finished frobbing Rohrschacht/hashfilter
[INFO] frobbed toml for Rohrschacht/hashfilter written to work/ex/beta-1.38-1/sources/1.37.0/gh/Rohrschacht/hashfilter/Cargo.toml
[INFO] started frobbing Rohrschacht/hashfilter
[INFO] finished frobbing Rohrschacht/hashfilter
[INFO] frobbed toml for Rohrschacht/hashfilter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter/Cargo.toml
[INFO] crate Rohrschacht/hashfilter 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Rohrschacht/hashfilter/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 Rohrschacht/hashfilter against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 56e22fb5a34061ab707db1f9ae86a1ad80860f47f4c13dab3784937b62844e32
[INFO] running `"docker" "start" "-a" "56e22fb5a34061ab707db1f9ae86a1ad80860f47f4c13dab3784937b62844e32"`
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling arkhash v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/update.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut file = OpenOptions::new().create(true).append(true).open(filepath);
[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 8.54s
[INFO] running `"docker" "inspect" "56e22fb5a34061ab707db1f9ae86a1ad80860f47f4c13dab3784937b62844e32"`
[INFO] running `"docker" "rm" "-f" "56e22fb5a34061ab707db1f9ae86a1ad80860f47f4c13dab3784937b62844e32"`
[INFO] [stdout] 56e22fb5a34061ab707db1f9ae86a1ad80860f47f4c13dab3784937b62844e32
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e7b089507e06958fbcd8cc4e8698c556af52f0433f9aa0a23c81c41419ff3133
[INFO] running `"docker" "start" "-a" "e7b089507e06958fbcd8cc4e8698c556af52f0433f9aa0a23c81c41419ff3133"`
[INFO] [stderr]    Compiling arkhash v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/update.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut file = OpenOptions::new().create(true).append(true).open(filepath);
[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 1.10s
[INFO] running `"docker" "inspect" "e7b089507e06958fbcd8cc4e8698c556af52f0433f9aa0a23c81c41419ff3133"`
[INFO] running `"docker" "rm" "-f" "e7b089507e06958fbcd8cc4e8698c556af52f0433f9aa0a23c81c41419ff3133"`
[INFO] [stdout] e7b089507e06958fbcd8cc4e8698c556af52f0433f9aa0a23c81c41419ff3133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rohrschacht/hashfilter:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 3d533d4d1d3164bea9aacde59d5e0aa84097d30ff024be484f8c622cfbcbbfaf
[INFO] running `"docker" "start" "-a" "3d533d4d1d3164bea9aacde59d5e0aa84097d30ff024be484f8c622cfbcbbfaf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/arkhash-007eb67bff76a810
[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" "3d533d4d1d3164bea9aacde59d5e0aa84097d30ff024be484f8c622cfbcbbfaf"`
[INFO] running `"docker" "rm" "-f" "3d533d4d1d3164bea9aacde59d5e0aa84097d30ff024be484f8c622cfbcbbfaf"`
[INFO] [stdout] 3d533d4d1d3164bea9aacde59d5e0aa84097d30ff024be484f8c622cfbcbbfaf