[INFO] updating cached repository pebble-rust/cargo-pebble
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pebble-rust/cargo-pebble
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pebble-rust/cargo-pebble" "work/ex/beta-1.38-1/sources/1.37.0/gh/pebble-rust/cargo-pebble"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pebble-rust/cargo-pebble'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pebble-rust/cargo-pebble" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pebble-rust/cargo-pebble"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pebble-rust/cargo-pebble'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2a88bcfe325e266171bd5b6b7813bb97f6a33e2
[INFO] sha for GitHub repo pebble-rust/cargo-pebble: f2a88bcfe325e266171bd5b6b7813bb97f6a33e2
[INFO] validating manifest of pebble-rust/cargo-pebble 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 pebble-rust/cargo-pebble 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 pebble-rust/cargo-pebble
[INFO] finished frobbing pebble-rust/cargo-pebble
[INFO] frobbed toml for pebble-rust/cargo-pebble written to work/ex/beta-1.38-1/sources/1.37.0/gh/pebble-rust/cargo-pebble/Cargo.toml
[INFO] started frobbing pebble-rust/cargo-pebble
[INFO] finished frobbing pebble-rust/cargo-pebble
[INFO] frobbed toml for pebble-rust/cargo-pebble written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pebble-rust/cargo-pebble/Cargo.toml
[INFO] crate pebble-rust/cargo-pebble 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 pebble-rust/cargo-pebble 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/pebble-rust/cargo-pebble:/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] b6a2c9af32a80cff27523bceb712505d2794954ebabeacba9cca78c105ac6388
[INFO] running `"docker" "start" "-a" "b6a2c9af32a80cff27523bceb712505d2794954ebabeacba9cca78c105ac6388"`
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling cargo-pebble v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let matches = App::from_yaml(yml).get_matches();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.55s
[INFO] running `"docker" "inspect" "b6a2c9af32a80cff27523bceb712505d2794954ebabeacba9cca78c105ac6388"`
[INFO] running `"docker" "rm" "-f" "b6a2c9af32a80cff27523bceb712505d2794954ebabeacba9cca78c105ac6388"`
[INFO] [stdout] b6a2c9af32a80cff27523bceb712505d2794954ebabeacba9cca78c105ac6388
[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/pebble-rust/cargo-pebble:/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] 3e91b54eb18f25efca17c638908d86dc5e4c6f567aed8a096434030c7f13bf85
[INFO] running `"docker" "start" "-a" "3e91b54eb18f25efca17c638908d86dc5e4c6f567aed8a096434030c7f13bf85"`
[INFO] [stderr]    Compiling cargo-pebble v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let matches = App::from_yaml(yml).get_matches();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "3e91b54eb18f25efca17c638908d86dc5e4c6f567aed8a096434030c7f13bf85"`
[INFO] running `"docker" "rm" "-f" "3e91b54eb18f25efca17c638908d86dc5e4c6f567aed8a096434030c7f13bf85"`
[INFO] [stdout] 3e91b54eb18f25efca17c638908d86dc5e4c6f567aed8a096434030c7f13bf85
[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/pebble-rust/cargo-pebble:/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] 16bc32327486de03a1020331bb96b4868b3e97eac0876ab90558bf29220344ef
[INFO] running `"docker" "start" "-a" "16bc32327486de03a1020331bb96b4868b3e97eac0876ab90558bf29220344ef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_pebble-3ff5063ebde1dc05
[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" "16bc32327486de03a1020331bb96b4868b3e97eac0876ab90558bf29220344ef"`
[INFO] running `"docker" "rm" "-f" "16bc32327486de03a1020331bb96b4868b3e97eac0876ab90558bf29220344ef"`
[INFO] [stdout] 16bc32327486de03a1020331bb96b4868b3e97eac0876ab90558bf29220344ef