[INFO] updating cached repository pabloalonsos/Track
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pabloalonsos/Track
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pabloalonsos/Track" "work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pabloalonsos/Track" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pabloalonsos/Track"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pabloalonsos/Track'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 602eb7ab845f8556411e2811e2c3f196fa99a098
[INFO] sha for GitHub repo pabloalonsos/Track: 602eb7ab845f8556411e2811e2c3f196fa99a098
[INFO] validating manifest of pabloalonsos/Track 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 pabloalonsos/Track 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 pabloalonsos/Track
[INFO] finished frobbing pabloalonsos/Track
[INFO] frobbed toml for pabloalonsos/Track written to work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track/Cargo.toml
[INFO] started frobbing pabloalonsos/Track
[INFO] finished frobbing pabloalonsos/Track
[INFO] frobbed toml for pabloalonsos/Track written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pabloalonsos/Track/Cargo.toml
[INFO] crate pabloalonsos/Track 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] 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 pabloalonsos/Track 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track:/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] 9784595aa7a4b268955d6b5f9ff0e6ce0d092101f9d32d5accde8d9062ae95dc
[INFO] running `"docker" "start" "-a" "9784595aa7a4b268955d6b5f9ff0e6ce0d092101f9d32d5accde8d9062ae95dc"`
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling track v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/main.rs:12:37
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ok(_) => String::from(input.trim_right_matches("\n")),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_file`
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn parse_file(mut file: File) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     file_buffer.write_all(save.as_bytes());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.17s
[INFO] running `"docker" "inspect" "9784595aa7a4b268955d6b5f9ff0e6ce0d092101f9d32d5accde8d9062ae95dc"`
[INFO] running `"docker" "rm" "-f" "9784595aa7a4b268955d6b5f9ff0e6ce0d092101f9d32d5accde8d9062ae95dc"`
[INFO] [stdout] 9784595aa7a4b268955d6b5f9ff0e6ce0d092101f9d32d5accde8d9062ae95dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track:/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] 87d827d08c51fb98f00424e2763ddb7c9a4e69db99eadd76796464083d85c567
[INFO] running `"docker" "start" "-a" "87d827d08c51fb98f00424e2763ddb7c9a4e69db99eadd76796464083d85c567"`
[INFO] [stderr]    Compiling track v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/main.rs:12:37
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ok(_) => String::from(input.trim_right_matches("\n")),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_file`
[INFO] [stderr]   --> src/main.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn parse_file(mut file: File) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     file_buffer.write_all(save.as_bytes());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "87d827d08c51fb98f00424e2763ddb7c9a4e69db99eadd76796464083d85c567"`
[INFO] running `"docker" "rm" "-f" "87d827d08c51fb98f00424e2763ddb7c9a4e69db99eadd76796464083d85c567"`
[INFO] [stdout] 87d827d08c51fb98f00424e2763ddb7c9a4e69db99eadd76796464083d85c567
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pabloalonsos/Track:/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] 78755e5ca2b180142b53fdfb55098ad05b9ae3ac983a0dcf5b9ec199d77bce38
[INFO] running `"docker" "start" "-a" "78755e5ca2b180142b53fdfb55098ad05b9ae3ac983a0dcf5b9ec199d77bce38"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/track-6115b0cb421826e8
[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" "78755e5ca2b180142b53fdfb55098ad05b9ae3ac983a0dcf5b9ec199d77bce38"`
[INFO] running `"docker" "rm" "-f" "78755e5ca2b180142b53fdfb55098ad05b9ae3ac983a0dcf5b9ec199d77bce38"`
[INFO] [stdout] 78755e5ca2b180142b53fdfb55098ad05b9ae3ac983a0dcf5b9ec199d77bce38