[INFO] updating cached repository tony612/adventureofcode
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tony612/adventureofcode
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tony612/adventureofcode" "work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tony612/adventureofcode" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tony612/adventureofcode"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tony612/adventureofcode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e91e9cec8e04cc75fd1443baea46d023c9b4792a
[INFO] sha for GitHub repo tony612/adventureofcode: e91e9cec8e04cc75fd1443baea46d023c9b4792a
[INFO] validating manifest of tony612/adventureofcode 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 tony612/adventureofcode 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 tony612/adventureofcode
[INFO] finished frobbing tony612/adventureofcode
[INFO] frobbed toml for tony612/adventureofcode written to work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode/Cargo.toml
[INFO] started frobbing tony612/adventureofcode
[INFO] finished frobbing tony612/adventureofcode
[INFO] frobbed toml for tony612/adventureofcode written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tony612/adventureofcode/Cargo.toml
[INFO] crate tony612/adventureofcode 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 tony612/adventureofcode 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode:/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] 88b3afec779f014341458ff4ea6c065968add785974f8b7ffb475fe7c34be6be
[INFO] running `"docker" "start" "-a" "88b3afec779f014341458ff4ea6c065968add785974f8b7ffb475fe7c34be6be"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `areas` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day6.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let found = areas.get(id);
[INFO] [stderr]    |                         ----- immutable borrow occurs here
[INFO] [stderr] 75 |             match found {
[INFO] [stderr] 76 |                 Some(size) => areas.insert(*id, size + 1),
[INFO] [stderr]    |                               ^^^^^             ---- immutable borrow later used here
[INFO] [stderr]    |                               |
[INFO] [stderr]    |                               mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.85s
[INFO] running `"docker" "inspect" "88b3afec779f014341458ff4ea6c065968add785974f8b7ffb475fe7c34be6be"`
[INFO] running `"docker" "rm" "-f" "88b3afec779f014341458ff4ea6c065968add785974f8b7ffb475fe7c34be6be"`
[INFO] [stdout] 88b3afec779f014341458ff4ea6c065968add785974f8b7ffb475fe7c34be6be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode:/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] ef3bcafbd079b71976866b009636e075f0955f1cffb068ca3db3802c2bc4fe12
[INFO] running `"docker" "start" "-a" "ef3bcafbd079b71976866b009636e075f0955f1cffb068ca3db3802c2bc4fe12"`
[INFO] [stderr]    Compiling adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `areas` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day6.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let found = areas.get(id);
[INFO] [stderr]    |                         ----- immutable borrow occurs here
[INFO] [stderr] 75 |             match found {
[INFO] [stderr] 76 |                 Some(size) => areas.insert(*id, size + 1),
[INFO] [stderr]    |                               ^^^^^             ---- immutable borrow later used here
[INFO] [stderr]    |                               |
[INFO] [stderr]    |                               mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "ef3bcafbd079b71976866b009636e075f0955f1cffb068ca3db3802c2bc4fe12"`
[INFO] running `"docker" "rm" "-f" "ef3bcafbd079b71976866b009636e075f0955f1cffb068ca3db3802c2bc4fe12"`
[INFO] [stdout] ef3bcafbd079b71976866b009636e075f0955f1cffb068ca3db3802c2bc4fe12
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tony612/adventureofcode:/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] b195af1a61b7068c9e114b710631941731690e08e0730bf0010d8d8c53b06241
[INFO] running `"docker" "start" "-a" "b195af1a61b7068c9e114b710631941731690e08e0730bf0010d8d8c53b06241"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/adventofcode-d49b22133d07e2f3
[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" "b195af1a61b7068c9e114b710631941731690e08e0730bf0010d8d8c53b06241"`
[INFO] running `"docker" "rm" "-f" "b195af1a61b7068c9e114b710631941731690e08e0730bf0010d8d8c53b06241"`
[INFO] [stdout] b195af1a61b7068c9e114b710631941731690e08e0730bf0010d8d8c53b06241