[INFO] updating cached repository https://github.com/davidsullins/AdventOfRust2018
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6260e6579d36fd6f5e5d3fea48409ac92031ba04
[INFO] testing davidsullins/AdventOfRust2018 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidsullins%2FAdventOfRust2018" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidsullins/AdventOfRust2018 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/davidsullins/AdventOfRust2018
[INFO] finished tweaking git repo https://github.com/davidsullins/AdventOfRust2018
[INFO] tweaked toml for git repo https://github.com/davidsullins/AdventOfRust2018 written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/davidsullins/AdventOfRust2018 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] df24333758872af9546d532527593072bb76d981195c483a505ae167912ab63e
[INFO] running `"docker" "start" "-a" "df24333758872af9546d532527593072bb76d981195c483a505ae167912ab63e"`
[INFO] [stderr]    Compiling libc v0.2.44
[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/rustwide/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 8.41s
[INFO] running `"docker" "inspect" "df24333758872af9546d532527593072bb76d981195c483a505ae167912ab63e"`
[INFO] running `"docker" "rm" "-f" "df24333758872af9546d532527593072bb76d981195c483a505ae167912ab63e"`
[INFO] [stdout] df24333758872af9546d532527593072bb76d981195c483a505ae167912ab63e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ceb96b9d31008b6651289021a1f999e177a94172a63302a0aadb74ac7be1656c
[INFO] running `"docker" "start" "-a" "ceb96b9d31008b6651289021a1f999e177a94172a63302a0aadb74ac7be1656c"`
[INFO] [stderr]    Compiling AdventOfRust2018 v0.1.0 (/opt/rustwide/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 2.25s
[INFO] running `"docker" "inspect" "ceb96b9d31008b6651289021a1f999e177a94172a63302a0aadb74ac7be1656c"`
[INFO] running `"docker" "rm" "-f" "ceb96b9d31008b6651289021a1f999e177a94172a63302a0aadb74ac7be1656c"`
[INFO] [stdout] ceb96b9d31008b6651289021a1f999e177a94172a63302a0aadb74ac7be1656c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] d339c19af62206a6300e70af0e6d038513fcdeb67a8757552efeba80c7ac23df
[INFO] running `"docker" "start" "-a" "d339c19af62206a6300e70af0e6d038513fcdeb67a8757552efeba80c7ac23df"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/day1-c26388034b64340b
[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/rustwide/target/debug/deps/day2-a48a8fba975fa265
[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_box_ids ... ok
[INFO] [stdout] test test_calc_checksum ... ok
[INFO] [stdout] test test_count_exactly_two ... ok
[INFO] [stdout] test test_find_common_letters ... 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/rustwide/target/debug/deps/day3-0a43e2e6b9e3730a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_parse_line ... ok
[INFO] [stdout] test test_find_non_overlapping_id ... ok
[INFO] [stdout] test test_is_overlap ... 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/rustwide/target/debug/deps/day8-da308f52bf9e3676
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_compute_root_node_value ... ok
[INFO] [stdout] test test_parse_input ... ok
[INFO] [stdout] test test_sum_metadata ... 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/rustwide/target/debug/deps/day9-3619ef757da5cc15
[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" "d339c19af62206a6300e70af0e6d038513fcdeb67a8757552efeba80c7ac23df"`
[INFO] running `"docker" "rm" "-f" "d339c19af62206a6300e70af0e6d038513fcdeb67a8757552efeba80c7ac23df"`
[INFO] [stdout] d339c19af62206a6300e70af0e6d038513fcdeb67a8757552efeba80c7ac23df