[INFO] updating cached repository arirahikkala/donationcount [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/arirahikkala/donationcount [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/arirahikkala/donationcount" "work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/arirahikkala/donationcount" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arirahikkala/donationcount"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arirahikkala/donationcount'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 399e4bbe792815888f92826c7e1238a29c39c4bd [INFO] sha for GitHub repo arirahikkala/donationcount: 399e4bbe792815888f92826c7e1238a29c39c4bd [INFO] validating manifest of arirahikkala/donationcount 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 arirahikkala/donationcount 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 arirahikkala/donationcount [INFO] finished frobbing arirahikkala/donationcount [INFO] frobbed toml for arirahikkala/donationcount written to work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount/Cargo.toml [INFO] started frobbing arirahikkala/donationcount [INFO] finished frobbing arirahikkala/donationcount [INFO] frobbed toml for arirahikkala/donationcount written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arirahikkala/donationcount/Cargo.toml [INFO] crate arirahikkala/donationcount 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 arirahikkala/donationcount 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount:/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] 041667f3d424c7b99bbdbe7af1b640d745a5f0712bb51a8308491d5768f96b69 [INFO] running `"docker" "start" "-a" "041667f3d424c7b99bbdbe7af1b640d745a5f0712bb51a8308491d5768f96b69"` [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling donationcount v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:35:18 [INFO] [stderr] | [INFO] [stderr] 35 | let (mut small, mut large) = if aas.len() > bbs.len() { (bbs, aas) } else { (aas, bbs) }; [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 2.46s [INFO] running `"docker" "inspect" "041667f3d424c7b99bbdbe7af1b640d745a5f0712bb51a8308491d5768f96b69"` [INFO] running `"docker" "rm" "-f" "041667f3d424c7b99bbdbe7af1b640d745a5f0712bb51a8308491d5768f96b69"` [INFO] [stdout] 041667f3d424c7b99bbdbe7af1b640d745a5f0712bb51a8308491d5768f96b69 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount:/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] 64342ebde707607f767f3a1c928bff9d8eac34cfa52644aca9e73253bf085c30 [INFO] running `"docker" "start" "-a" "64342ebde707607f767f3a1c928bff9d8eac34cfa52644aca9e73253bf085c30"` [INFO] [stderr] Compiling donationcount v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:35:18 [INFO] [stderr] | [INFO] [stderr] 35 | let (mut small, mut large) = if aas.len() > bbs.len() { (bbs, aas) } else { (aas, bbs) }; [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 0.86s [INFO] running `"docker" "inspect" "64342ebde707607f767f3a1c928bff9d8eac34cfa52644aca9e73253bf085c30"` [INFO] running `"docker" "rm" "-f" "64342ebde707607f767f3a1c928bff9d8eac34cfa52644aca9e73253bf085c30"` [INFO] [stdout] 64342ebde707607f767f3a1c928bff9d8eac34cfa52644aca9e73253bf085c30 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/arirahikkala/donationcount:/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] 2c4a669c5c239c3f00735ba1a199e0a446f94747d0ce0a94b66b57987cae7a43 [INFO] running `"docker" "start" "-a" "2c4a669c5c239c3f00735ba1a199e0a446f94747d0ce0a94b66b57987cae7a43"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/crater/target/debug/deps/donationcount-4aa09048ad9bb33c [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" "2c4a669c5c239c3f00735ba1a199e0a446f94747d0ce0a94b66b57987cae7a43"` [INFO] running `"docker" "rm" "-f" "2c4a669c5c239c3f00735ba1a199e0a446f94747d0ce0a94b66b57987cae7a43"` [INFO] [stdout] 2c4a669c5c239c3f00735ba1a199e0a446f94747d0ce0a94b66b57987cae7a43