[INFO] updating cached repository odgaard/corm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/odgaard/corm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/odgaard/corm" "work/ex/beta-1.37-6/sources/1.36.0/gh/odgaard/corm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/odgaard/corm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/odgaard/corm" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f62be8993d862a714082730a55d8bde3fae19d3
[INFO] sha for GitHub repo odgaard/corm: 7f62be8993d862a714082730a55d8bde3fae19d3
[INFO] validating manifest of odgaard/corm on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of odgaard/corm on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing odgaard/corm
[INFO] finished frobbing odgaard/corm
[INFO] frobbed toml for odgaard/corm written to work/ex/beta-1.37-6/sources/1.36.0/gh/odgaard/corm/Cargo.toml
[INFO] started frobbing odgaard/corm
[INFO] finished frobbing odgaard/corm
[INFO] frobbed toml for odgaard/corm written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm/Cargo.toml
[INFO] crate odgaard/corm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing odgaard/corm against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] bb51836a205615a8d044eb36bef223465b769f793aca5452a2f534e4e1d338df
[INFO] running `"docker" "start" "-a" "bb51836a205615a8d044eb36bef223465b769f793aca5452a2f534e4e1d338df"`
[INFO] [stderr]    Compiling confirm-rm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let output = match Command::new("du")
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "bb51836a205615a8d044eb36bef223465b769f793aca5452a2f534e4e1d338df"`
[INFO] running `"docker" "rm" "-f" "bb51836a205615a8d044eb36bef223465b769f793aca5452a2f534e4e1d338df"`
[INFO] [stdout] bb51836a205615a8d044eb36bef223465b769f793aca5452a2f534e4e1d338df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 43102f55499aa01f2ba9ea5dfd2a9876d4b2e1ffc2afc78a05550904a46757cc
[INFO] running `"docker" "start" "-a" "43102f55499aa01f2ba9ea5dfd2a9876d4b2e1ffc2afc78a05550904a46757cc"`
[INFO] [stderr]    Compiling confirm-rm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let output = match Command::new("du")
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "43102f55499aa01f2ba9ea5dfd2a9876d4b2e1ffc2afc78a05550904a46757cc"`
[INFO] running `"docker" "rm" "-f" "43102f55499aa01f2ba9ea5dfd2a9876d4b2e1ffc2afc78a05550904a46757cc"`
[INFO] [stdout] 43102f55499aa01f2ba9ea5dfd2a9876d4b2e1ffc2afc78a05550904a46757cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/odgaard/corm:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 7416e73839993511c8d1a43ffe768be1eab9497d3519e354d179d70e161d3db2
[INFO] running `"docker" "start" "-a" "7416e73839993511c8d1a43ffe768be1eab9497d3519e354d179d70e161d3db2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/confirm_rm-78224ac4ce5cb1a3
[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" "7416e73839993511c8d1a43ffe768be1eab9497d3519e354d179d70e161d3db2"`
[INFO] running `"docker" "rm" "-f" "7416e73839993511c8d1a43ffe768be1eab9497d3519e354d179d70e161d3db2"`
[INFO] [stdout] 7416e73839993511c8d1a43ffe768be1eab9497d3519e354d179d70e161d3db2