[INFO] updating cached repository bradfier/rustfmt_linenum_example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bradfier/rustfmt_linenum_example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bradfier/rustfmt_linenum_example" "work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bradfier/rustfmt_linenum_example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradfier/rustfmt_linenum_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradfier/rustfmt_linenum_example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 68ba27bc15fca5c010807a928e14004742755c0d
[INFO] sha for GitHub repo bradfier/rustfmt_linenum_example: 68ba27bc15fca5c010807a928e14004742755c0d
[INFO] validating manifest of bradfier/rustfmt_linenum_example 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 bradfier/rustfmt_linenum_example 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 bradfier/rustfmt_linenum_example
[INFO] finished frobbing bradfier/rustfmt_linenum_example
[INFO] frobbed toml for bradfier/rustfmt_linenum_example written to work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example/Cargo.toml
[INFO] started frobbing bradfier/rustfmt_linenum_example
[INFO] finished frobbing bradfier/rustfmt_linenum_example
[INFO] frobbed toml for bradfier/rustfmt_linenum_example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bradfier/rustfmt_linenum_example/Cargo.toml
[INFO] crate bradfier/rustfmt_linenum_example 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 bradfier/rustfmt_linenum_example 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example:/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] fcffc4cac17386696a566fdd17bf66b65416f2630f81e9ff2ff2b9730087f745
[INFO] running `"docker" "start" "-a" "fcffc4cac17386696a566fdd17bf66b65416f2630f81e9ff2ff2b9730087f745"`
[INFO] [stderr]    Compiling rustfmt-linecount v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `my_shorter_function`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / fn my_shorter_function(
[INFO] [stderr] 2 | |     _a: String,
[INFO] [stderr] 3 | |     _b: String,
[INFO] [stderr] 4 | |     _c: String,
[INFO] [stderr] 5 | | ) {
[INFO] [stderr] 6 | |     unimplemented!()
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "fcffc4cac17386696a566fdd17bf66b65416f2630f81e9ff2ff2b9730087f745"`
[INFO] running `"docker" "rm" "-f" "fcffc4cac17386696a566fdd17bf66b65416f2630f81e9ff2ff2b9730087f745"`
[INFO] [stdout] fcffc4cac17386696a566fdd17bf66b65416f2630f81e9ff2ff2b9730087f745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example:/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] b7ab08fa39a2932d56f7277c653d53292f7409817c130d0a4b389004dcdd1f6f
[INFO] running `"docker" "start" "-a" "b7ab08fa39a2932d56f7277c653d53292f7409817c130d0a4b389004dcdd1f6f"`
[INFO] [stderr]    Compiling rustfmt-linecount v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `my_shorter_function`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / fn my_shorter_function(
[INFO] [stderr] 2 | |     _a: String,
[INFO] [stderr] 3 | |     _b: String,
[INFO] [stderr] 4 | |     _c: String,
[INFO] [stderr] 5 | | ) {
[INFO] [stderr] 6 | |     unimplemented!()
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "b7ab08fa39a2932d56f7277c653d53292f7409817c130d0a4b389004dcdd1f6f"`
[INFO] running `"docker" "rm" "-f" "b7ab08fa39a2932d56f7277c653d53292f7409817c130d0a4b389004dcdd1f6f"`
[INFO] [stdout] b7ab08fa39a2932d56f7277c653d53292f7409817c130d0a4b389004dcdd1f6f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bradfier/rustfmt_linenum_example:/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] 7fb1d67c5dcd9b6676f0c8e831f6f2e53e5075e29044cc6f752429022703393b
[INFO] running `"docker" "start" "-a" "7fb1d67c5dcd9b6676f0c8e831f6f2e53e5075e29044cc6f752429022703393b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustfmt_linecount-2948bdd4667ab64a
[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" "7fb1d67c5dcd9b6676f0c8e831f6f2e53e5075e29044cc6f752429022703393b"`
[INFO] running `"docker" "rm" "-f" "7fb1d67c5dcd9b6676f0c8e831f6f2e53e5075e29044cc6f752429022703393b"`
[INFO] [stdout] 7fb1d67c5dcd9b6676f0c8e831f6f2e53e5075e29044cc6f752429022703393b