[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 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b65973cec6ca81749d90ddb7efaadc9af23c78f4ff28e90d1c7d38e0d9279555
[INFO] running `"docker" "start" "-a" "b65973cec6ca81749d90ddb7efaadc9af23c78f4ff28e90d1c7d38e0d9279555"`
[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 4.23s
[INFO] running `"docker" "inspect" "b65973cec6ca81749d90ddb7efaadc9af23c78f4ff28e90d1c7d38e0d9279555"`
[INFO] running `"docker" "rm" "-f" "b65973cec6ca81749d90ddb7efaadc9af23c78f4ff28e90d1c7d38e0d9279555"`
[INFO] [stdout] b65973cec6ca81749d90ddb7efaadc9af23c78f4ff28e90d1c7d38e0d9279555
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c6a7418ee7d4694a0a25fabec92873ddcab6de6a3b450aeef3c0c48e6a92b08a
[INFO] running `"docker" "start" "-a" "c6a7418ee7d4694a0a25fabec92873ddcab6de6a3b450aeef3c0c48e6a92b08a"`
[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 2.55s
[INFO] running `"docker" "inspect" "c6a7418ee7d4694a0a25fabec92873ddcab6de6a3b450aeef3c0c48e6a92b08a"`
[INFO] running `"docker" "rm" "-f" "c6a7418ee7d4694a0a25fabec92873ddcab6de6a3b450aeef3c0c48e6a92b08a"`
[INFO] [stdout] c6a7418ee7d4694a0a25fabec92873ddcab6de6a3b450aeef3c0c48e6a92b08a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 48dc294ce9a1b18dcaabe6fb54916f5ce715be64535d833621003092a59543c1
[INFO] running `"docker" "start" "-a" "48dc294ce9a1b18dcaabe6fb54916f5ce715be64535d833621003092a59543c1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_subset-6d7d018da0c44914
[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" "48dc294ce9a1b18dcaabe6fb54916f5ce715be64535d833621003092a59543c1"`
[INFO] running `"docker" "rm" "-f" "48dc294ce9a1b18dcaabe6fb54916f5ce715be64535d833621003092a59543c1"`
[INFO] [stdout] 48dc294ce9a1b18dcaabe6fb54916f5ce715be64535d833621003092a59543c1