[INFO] updating cached repository davidsullins/AdventOfRust2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidsullins/AdventOfRust2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidsullins/AdventOfRust2018" "work/ex/beta-1.38-1/sources/1.37.0/gh/davidsullins/AdventOfRust2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/davidsullins/AdventOfRust2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidsullins/AdventOfRust2018" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidsullins/AdventOfRust2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidsullins/AdventOfRust2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6260e6579d36fd6f5e5d3fea48409ac92031ba04
[INFO] sha for GitHub repo davidsullins/AdventOfRust2018: 6260e6579d36fd6f5e5d3fea48409ac92031ba04
[INFO] validating manifest of davidsullins/AdventOfRust2018 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 davidsullins/AdventOfRust2018 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 davidsullins/AdventOfRust2018
[INFO] finished frobbing davidsullins/AdventOfRust2018
[INFO] frobbed toml for davidsullins/AdventOfRust2018 written to work/ex/beta-1.38-1/sources/1.37.0/gh/davidsullins/AdventOfRust2018/Cargo.toml
[INFO] started frobbing davidsullins/AdventOfRust2018
[INFO] finished frobbing davidsullins/AdventOfRust2018
[INFO] frobbed toml for davidsullins/AdventOfRust2018 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davidsullins/AdventOfRust2018/Cargo.toml
[INFO] crate davidsullins/AdventOfRust2018 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 davidsullins/AdventOfRust2018 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/davidsullins/AdventOfRust2018:/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] 81e374c9078295aa89d2bfaa80c6169fd32bee78e11560ae6794bebf6f5904ac
[INFO] running `"docker" "start" "-a" "81e374c9078295aa89d2bfaa80c6169fd32bee78e11560ae6794bebf6f5904ac"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling AdventOfRust2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `letter_count` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/bin/day2.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let count = letter_count.get(&c).unwrap_or(&0);
[INFO] [stderr]    |                         ------------ immutable borrow occurs here
[INFO] [stderr] 25 |             letter_count.insert(c, count + 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 20.68s
[INFO] running `"docker" "inspect" "81e374c9078295aa89d2bfaa80c6169fd32bee78e11560ae6794bebf6f5904ac"`
[INFO] running `"docker" "rm" "-f" "81e374c9078295aa89d2bfaa80c6169fd32bee78e11560ae6794bebf6f5904ac"`
[INFO] [stdout] 81e374c9078295aa89d2bfaa80c6169fd32bee78e11560ae6794bebf6f5904ac
[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/davidsullins/AdventOfRust2018:/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] 89534b54cd7cc246a63f327f9883b768797309a5563d7f983db8395397c3d40e
[INFO] running `"docker" "start" "-a" "89534b54cd7cc246a63f327f9883b768797309a5563d7f983db8395397c3d40e"`
[INFO] [stderr]    Compiling AdventOfRust2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `letter_count` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/bin/day2.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let count = letter_count.get(&c).unwrap_or(&0);
[INFO] [stderr]    |                         ------------ immutable borrow occurs here
[INFO] [stderr] 25 |             letter_count.insert(c, count + 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 4.08s
[INFO] running `"docker" "inspect" "89534b54cd7cc246a63f327f9883b768797309a5563d7f983db8395397c3d40e"`
[INFO] running `"docker" "rm" "-f" "89534b54cd7cc246a63f327f9883b768797309a5563d7f983db8395397c3d40e"`
[INFO] [stdout] 89534b54cd7cc246a63f327f9883b768797309a5563d7f983db8395397c3d40e
[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/davidsullins/AdventOfRust2018:/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] 6c73f958caf861b56fee57ba599b7d8851bb8d0733f8bcd9ab69b579bbb98c12
[INFO] running `"docker" "start" "-a" "6c73f958caf861b56fee57ba599b7d8851bb8d0733f8bcd9ab69b579bbb98c12"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day1-f3e99dd972c2c4fc
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_calc_freq ... ok
[INFO] [stdout] test test_parse_changes ... ok
[INFO] [stdout] test test_find_first_repeated_freq ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day2-078dc5d2aeb4b037
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_differ_by_one_char ... ok
[INFO] [stdout] test test_count_exactly_three ... ok
[INFO] [stdout] test test_find_common_letters ... ok
[INFO] [stdout] test test_calc_checksum ... ok
[INFO] [stdout] test test_count_exactly_two ... ok
[INFO] [stdout] test test_find_box_ids ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day3-21df37d8616c065f
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_parse_line ... ok
[INFO] [stdout] test test_is_overlap ... ok
[INFO] [stdout] test test_find_non_overlapping_id ... ok
[INFO] [stdout] test test_count_claimed_by_at_least_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day8-2b9f0bca25b7cccb
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_sum_metadata ... ok
[INFO] [stdout] test test_compute_root_node_value ... ok
[INFO] [stdout] test test_parse_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day9-93bf87fd3578b2a1
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_place_marble ... ok
[INFO] [stdout] test test_parse_line ... ok
[INFO] [stdout] test test_find_highest_score ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6c73f958caf861b56fee57ba599b7d8851bb8d0733f8bcd9ab69b579bbb98c12"`
[INFO] running `"docker" "rm" "-f" "6c73f958caf861b56fee57ba599b7d8851bb8d0733f8bcd9ab69b579bbb98c12"`
[INFO] [stdout] 6c73f958caf861b56fee57ba599b7d8851bb8d0733f8bcd9ab69b579bbb98c12