[INFO] crate git-subset 0.1.0 is already in cache
[INFO] extracting crate git-subset 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/git-subset/0.1.0
[INFO] extracting crate git-subset 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/git-subset/0.1.0
[INFO] validating manifest of git-subset-0.1.0 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 git-subset-0.1.0 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/git-subset/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing git-subset-0.1.0 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] fc7b3446988b84f30d0765352e24e0c031267ee9e7340f09fce3443298cca30a
[INFO] running `"docker" "start" "-a" "fc7b3446988b84f30d0765352e24e0c031267ee9e7340f09fce3443298cca30a"`
[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 4.13s
[INFO] running `"docker" "inspect" "fc7b3446988b84f30d0765352e24e0c031267ee9e7340f09fce3443298cca30a"`
[INFO] running `"docker" "rm" "-f" "fc7b3446988b84f30d0765352e24e0c031267ee9e7340f09fce3443298cca30a"`
[INFO] [stdout] fc7b3446988b84f30d0765352e24e0c031267ee9e7340f09fce3443298cca30a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4eaa25ab479607bcead1c5772962eb421409f54f6a960d0d4698e7e7c6d61420
[INFO] running `"docker" "start" "-a" "4eaa25ab479607bcead1c5772962eb421409f54f6a960d0d4698e7e7c6d61420"`
[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 2.46s
[INFO] running `"docker" "inspect" "4eaa25ab479607bcead1c5772962eb421409f54f6a960d0d4698e7e7c6d61420"`
[INFO] running `"docker" "rm" "-f" "4eaa25ab479607bcead1c5772962eb421409f54f6a960d0d4698e7e7c6d61420"`
[INFO] [stdout] 4eaa25ab479607bcead1c5772962eb421409f54f6a960d0d4698e7e7c6d61420
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 57a0f6c200951c7db9cc94035ad41d4d2f187f8d754fdfb507f69133bc04a914
[INFO] running `"docker" "start" "-a" "57a0f6c200951c7db9cc94035ad41d4d2f187f8d754fdfb507f69133bc04a914"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_subset-c987a5c73d4a147a
[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" "57a0f6c200951c7db9cc94035ad41d4d2f187f8d754fdfb507f69133bc04a914"`
[INFO] running `"docker" "rm" "-f" "57a0f6c200951c7db9cc94035ad41d4d2f187f8d754fdfb507f69133bc04a914"`
[INFO] [stdout] 57a0f6c200951c7db9cc94035ad41d4d2f187f8d754fdfb507f69133bc04a914