[INFO] updating cached repository kernelmachine/cargo-profiler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kernelmachine/cargo-profiler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kernelmachine/cargo-profiler" "work/ex/beta-1.37-6/sources/1.36.0/gh/kernelmachine/cargo-profiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kernelmachine/cargo-profiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kernelmachine/cargo-profiler" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kernelmachine/cargo-profiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kernelmachine/cargo-profiler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 35ec738c890e52ebedfece2f6337a12f6d3addbd
[INFO] sha for GitHub repo kernelmachine/cargo-profiler: 35ec738c890e52ebedfece2f6337a12f6d3addbd
[INFO] validating manifest of kernelmachine/cargo-profiler 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 kernelmachine/cargo-profiler 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 kernelmachine/cargo-profiler
[INFO] finished frobbing kernelmachine/cargo-profiler
[INFO] frobbed toml for kernelmachine/cargo-profiler written to work/ex/beta-1.37-6/sources/1.36.0/gh/kernelmachine/cargo-profiler/Cargo.toml
[INFO] started frobbing kernelmachine/cargo-profiler
[INFO] finished frobbing kernelmachine/cargo-profiler
[INFO] frobbed toml for kernelmachine/cargo-profiler written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kernelmachine/cargo-profiler/Cargo.toml
[INFO] crate kernelmachine/cargo-profiler 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 kernelmachine/cargo-profiler against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kernelmachine/cargo-profiler:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 5a27f94221b7dad5eddf47c3f0194efa156b938596d3b9ad5e44412f51f5473f
[INFO] running `"docker" "start" "-a" "5a27f94221b7dad5eddf47c3f0194efa156b938596d3b9ad5e44412f51f5473f"`
[INFO] [stderr]    Compiling cargo-profiler v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]    --> src/parse/cachegrind.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             func.to_mut().drain(idx..).collect::<String>();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/parse/callgrind.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             func.to_mut().drain(idx..).collect::<String>();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.82s
[INFO] running `"docker" "inspect" "5a27f94221b7dad5eddf47c3f0194efa156b938596d3b9ad5e44412f51f5473f"`
[INFO] running `"docker" "rm" "-f" "5a27f94221b7dad5eddf47c3f0194efa156b938596d3b9ad5e44412f51f5473f"`
[INFO] [stdout] 5a27f94221b7dad5eddf47c3f0194efa156b938596d3b9ad5e44412f51f5473f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kernelmachine/cargo-profiler:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c6494afd9f4767886f80cc81044128cdb375276ff316c50320449c8c7260a0c3
[INFO] running `"docker" "start" "-a" "c6494afd9f4767886f80cc81044128cdb375276ff316c50320449c8c7260a0c3"`
[INFO] [stderr]    Compiling cargo-profiler v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `profiler`
[INFO] [stderr]    --> src/parse/callgrind.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     use profiler::Profiler;
[INFO] [stderr]     |         ^^^^^^^^ help: a similar path exists: `crate::profiler`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::CallGrindParser`
[INFO] [stderr]    --> src/parse/callgrind.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |     use super::CallGrindParser;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `cargo-profiler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c6494afd9f4767886f80cc81044128cdb375276ff316c50320449c8c7260a0c3"`
[INFO] running `"docker" "rm" "-f" "c6494afd9f4767886f80cc81044128cdb375276ff316c50320449c8c7260a0c3"`
[INFO] [stdout] c6494afd9f4767886f80cc81044128cdb375276ff316c50320449c8c7260a0c3