[INFO] crate generic_regex 0.1.0 is already in cache
[INFO] extracting crate generic_regex 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/generic_regex/0.1.0
[INFO] extracting crate generic_regex 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/generic_regex/0.1.0
[INFO] validating manifest of generic_regex-0.1.0 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 generic_regex-0.1.0 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 generic_regex-0.1.0
[INFO] finished frobbing generic_regex-0.1.0
[INFO] frobbed toml for generic_regex-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/generic_regex/0.1.0/Cargo.toml
[INFO] started frobbing generic_regex-0.1.0
[INFO] finished frobbing generic_regex-0.1.0
[INFO] frobbed toml for generic_regex-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/generic_regex/0.1.0/Cargo.toml
[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 generic_regex-0.1.0 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/reg/generic_regex/0.1.0:/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] 66849a1c5a4a4404724e73b2f0f806e29ddf3aa165cd28ccd0e42c6bfa30fa45
[INFO] running `"docker" "start" "-a" "66849a1c5a4a4404724e73b2f0f806e29ddf3aa165cd28ccd0e42c6bfa30fa45"`
[INFO] [stderr]    Compiling generic_regex v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |                 let mut w:Vec<RegEx<T>>=v.iter().map(|e|e.normal_form()).filter(|e|*e!=EmptyString).collect();
[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 1.29s
[INFO] running `"docker" "inspect" "66849a1c5a4a4404724e73b2f0f806e29ddf3aa165cd28ccd0e42c6bfa30fa45"`
[INFO] running `"docker" "rm" "-f" "66849a1c5a4a4404724e73b2f0f806e29ddf3aa165cd28ccd0e42c6bfa30fa45"`
[INFO] [stdout] 66849a1c5a4a4404724e73b2f0f806e29ddf3aa165cd28ccd0e42c6bfa30fa45
[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/reg/generic_regex/0.1.0:/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] 0f78af6a428d7b8365f167a81484d62f0b20bd75028aefa91973fb8549f419c1
[INFO] running `"docker" "start" "-a" "0f78af6a428d7b8365f167a81484d62f0b20bd75028aefa91973fb8549f419c1"`
[INFO] [stderr]    Compiling generic_regex v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |                 let mut w:Vec<RegEx<T>>=v.iter().map(|e|e.normal_form()).filter(|e|*e!=EmptyString).collect();
[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 3.00s
[INFO] running `"docker" "inspect" "0f78af6a428d7b8365f167a81484d62f0b20bd75028aefa91973fb8549f419c1"`
[INFO] running `"docker" "rm" "-f" "0f78af6a428d7b8365f167a81484d62f0b20bd75028aefa91973fb8549f419c1"`
[INFO] [stdout] 0f78af6a428d7b8365f167a81484d62f0b20bd75028aefa91973fb8549f419c1
[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/reg/generic_regex/0.1.0:/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] d6a76c6fcdd5b546e3f7c9de095f681efa32dd8a55027c943344046c6ff4d0a8
[INFO] running `"docker" "start" "-a" "d6a76c6fcdd5b546e3f7c9de095f681efa32dd8a55027c943344046c6ff4d0a8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/generic_regex-7e505785fb9da7ad
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::derivative1 ... ok
[INFO] [stdout] test tests::clean_headers_and_newlines ... ok
[INFO] [stdout] test tests::raw_machine_function ... ok
[INFO] [stdout] test tests::create_regex1 ... ok
[INFO] [stdout] test tests::test_escaping ... ok
[INFO] [stdout] test tests::test_find ... ok
[INFO] [stdout] test tests::test_u8 ... ok
[INFO] [stdout] test tests::create_regex_rewrite1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests generic_regex
[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" "d6a76c6fcdd5b546e3f7c9de095f681efa32dd8a55027c943344046c6ff4d0a8"`
[INFO] running `"docker" "rm" "-f" "d6a76c6fcdd5b546e3f7c9de095f681efa32dd8a55027c943344046c6ff4d0a8"`
[INFO] [stdout] d6a76c6fcdd5b546e3f7c9de095f681efa32dd8a55027c943344046c6ff4d0a8