[INFO] crate git-subset 0.1.0 is already in cache
[INFO] extracting crate git-subset 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/git-subset/0.1.0
[INFO] extracting crate git-subset 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-subset/0.1.0
[INFO] validating manifest of git-subset-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 git-subset-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 git-subset-0.1.0
[INFO] finished frobbing git-subset-0.1.0
[INFO] frobbed toml for git-subset-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/git-subset/0.1.0/Cargo.toml
[INFO] started frobbing git-subset-0.1.0
[INFO] finished frobbing git-subset-0.1.0
[INFO] frobbed toml for git-subset-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-subset/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] [stderr]     Blocking waiting for file lock on package cache lock
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing git-subset-0.1.0 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/reg/git-subset/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] afbcfc510207df4929a26de1daff83665f57f6197824ac976da9c48bc7593bf5
[INFO] running `"docker" "start" "-a" "afbcfc510207df4929a26de1daff83665f57f6197824ac976da9c48bc7593bf5"`
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling git-subset v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/filter.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut filter = self.filter
[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 9.47s
[INFO] running `"docker" "inspect" "afbcfc510207df4929a26de1daff83665f57f6197824ac976da9c48bc7593bf5"`
[INFO] running `"docker" "rm" "-f" "afbcfc510207df4929a26de1daff83665f57f6197824ac976da9c48bc7593bf5"`
[INFO] [stdout] afbcfc510207df4929a26de1daff83665f57f6197824ac976da9c48bc7593bf5
[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/reg/git-subset/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2a7e08ab8042885bf6b862fde3e63accea24793bd4025e0ad9e22125fc226d9d
[INFO] running `"docker" "start" "-a" "2a7e08ab8042885bf6b862fde3e63accea24793bd4025e0ad9e22125fc226d9d"`
[INFO] [stderr]    Compiling git-subset v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/filter.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut filter = self.filter
[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 2.01s
[INFO] running `"docker" "inspect" "2a7e08ab8042885bf6b862fde3e63accea24793bd4025e0ad9e22125fc226d9d"`
[INFO] running `"docker" "rm" "-f" "2a7e08ab8042885bf6b862fde3e63accea24793bd4025e0ad9e22125fc226d9d"`
[INFO] [stdout] 2a7e08ab8042885bf6b862fde3e63accea24793bd4025e0ad9e22125fc226d9d
[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/reg/git-subset/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 985b59304d43aea7ef067bc6e2482335be01b8064e437ea92e6042a20da12660
[INFO] running `"docker" "start" "-a" "985b59304d43aea7ef067bc6e2482335be01b8064e437ea92e6042a20da12660"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_subset-a82b6a3ea8c5e3fe
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test map::tests::test_resolve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "985b59304d43aea7ef067bc6e2482335be01b8064e437ea92e6042a20da12660"`
[INFO] running `"docker" "rm" "-f" "985b59304d43aea7ef067bc6e2482335be01b8064e437ea92e6042a20da12660"`
[INFO] [stdout] 985b59304d43aea7ef067bc6e2482335be01b8064e437ea92e6042a20da12660