[INFO] cloning repository daviswahl/rust-hkt
[INFO] running `"git" "clone" "--bare" "git://github.com/daviswahl/rust-hkt.git" "work/cache/sources/gh/daviswahl/rust-hkt"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/daviswahl/rust-hkt'...
[INFO] running `"git" "clone" "work/cache/sources/gh/daviswahl/rust-hkt" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/daviswahl/rust-hkt"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/daviswahl/rust-hkt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/daviswahl/rust-hkt" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/daviswahl/rust-hkt"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/daviswahl/rust-hkt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd67627fa38dae1fe6676e6f5dbd269fcfb1ad88
[INFO] sha for GitHub repo daviswahl/rust-hkt: bd67627fa38dae1fe6676e6f5dbd269fcfb1ad88
[INFO] validating manifest of daviswahl/rust-hkt on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of daviswahl/rust-hkt on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing daviswahl/rust-hkt
[INFO] finished frobbing daviswahl/rust-hkt
[INFO] frobbed toml for daviswahl/rust-hkt written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/daviswahl/rust-hkt/Cargo.toml
[INFO] started frobbing daviswahl/rust-hkt
[INFO] finished frobbing daviswahl/rust-hkt
[INFO] frobbed toml for daviswahl/rust-hkt written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/daviswahl/rust-hkt/Cargo.toml
[INFO] crate daviswahl/rust-hkt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] building daviswahl/rust-hkt against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/daviswahl/rust-hkt:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 9fa6093b7c2c68231f08618a8573daeee61605088d7a0348389144b93ef27fd6
[INFO] running `"docker" "start" "-a" "9fa6093b7c2c68231f08618a8573daeee61605088d7a0348389144b93ef27fd6"`
[INFO] [stderr]    Compiling rust-hkt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `functor_2_test`
[INFO] [stderr]    --> src/part2.rs:182:1
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn functor_2_test() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "9fa6093b7c2c68231f08618a8573daeee61605088d7a0348389144b93ef27fd6"`
[INFO] running `"docker" "rm" "-f" "9fa6093b7c2c68231f08618a8573daeee61605088d7a0348389144b93ef27fd6"`
[INFO] [stdout] 9fa6093b7c2c68231f08618a8573daeee61605088d7a0348389144b93ef27fd6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/daviswahl/rust-hkt:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 633bbf7ff9019b36d60254fd7d3154b5326357b828676bc7b149009970458a91
[INFO] running `"docker" "start" "-a" "633bbf7ff9019b36d60254fd7d3154b5326357b828676bc7b149009970458a91"`
[INFO] [stderr]    Compiling rust-hkt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `functor_2_test`
[INFO] [stderr]    --> src/part2.rs:182:1
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn functor_2_test() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "633bbf7ff9019b36d60254fd7d3154b5326357b828676bc7b149009970458a91"`
[INFO] running `"docker" "rm" "-f" "633bbf7ff9019b36d60254fd7d3154b5326357b828676bc7b149009970458a91"`
[INFO] [stdout] 633bbf7ff9019b36d60254fd7d3154b5326357b828676bc7b149009970458a91