[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-1.38-1/sources/1.37.0/gh/odgaard/corm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/odgaard/corm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/odgaard/corm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/odgaard/corm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of odgaard/corm 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 odgaard/corm
[INFO] finished frobbing odgaard/corm
[INFO] frobbed toml for odgaard/corm written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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 odgaard/corm against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] cc307310f365aac7f9f2b1c6721eada577cfce41a4466a08788b95bc5042dc26
[INFO] running `"docker" "start" "-a" "cc307310f365aac7f9f2b1c6721eada577cfce41a4466a08788b95bc5042dc26"`
[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 1.98s
[INFO] running `"docker" "inspect" "cc307310f365aac7f9f2b1c6721eada577cfce41a4466a08788b95bc5042dc26"`
[INFO] running `"docker" "rm" "-f" "cc307310f365aac7f9f2b1c6721eada577cfce41a4466a08788b95bc5042dc26"`
[INFO] [stdout] cc307310f365aac7f9f2b1c6721eada577cfce41a4466a08788b95bc5042dc26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 498cac1958d5d69d481fef42d44f70093f6ea32fa3853474d0cbed36bead5455
[INFO] running `"docker" "start" "-a" "498cac1958d5d69d481fef42d44f70093f6ea32fa3853474d0cbed36bead5455"`
[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 0.75s
[INFO] running `"docker" "inspect" "498cac1958d5d69d481fef42d44f70093f6ea32fa3853474d0cbed36bead5455"`
[INFO] running `"docker" "rm" "-f" "498cac1958d5d69d481fef42d44f70093f6ea32fa3853474d0cbed36bead5455"`
[INFO] [stdout] 498cac1958d5d69d481fef42d44f70093f6ea32fa3853474d0cbed36bead5455
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 89757f7fd6aed06231b7029685c570a8c1ad50d94afe3e46cba539ccf2be9472
[INFO] running `"docker" "start" "-a" "89757f7fd6aed06231b7029685c570a8c1ad50d94afe3e46cba539ccf2be9472"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/confirm_rm-858333d53a990161
[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" "89757f7fd6aed06231b7029685c570a8c1ad50d94afe3e46cba539ccf2be9472"`
[INFO] running `"docker" "rm" "-f" "89757f7fd6aed06231b7029685c570a8c1ad50d94afe3e46cba539ccf2be9472"`
[INFO] [stdout] 89757f7fd6aed06231b7029685c570a8c1ad50d94afe3e46cba539ccf2be9472