[INFO] updating cached repository https://github.com/davidsullins/AdventOfRust2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6260e6579d36fd6f5e5d3fea48409ac92031ba04
[INFO] testing davidsullins/AdventOfRust2018 against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidsullins%2FAdventOfRust2018" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidsullins/AdventOfRust2018 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/davidsullins/AdventOfRust2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 42cf5fbbc10bd6717eecf7dd2bc4092b0441698ce1bfe8c3c4a5c9f3ca0271d2
[INFO] running `Command { std: "docker" "start" "-a" "42cf5fbbc10bd6717eecf7dd2bc4092b0441698ce1bfe8c3c4a5c9f3ca0271d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42cf5fbbc10bd6717eecf7dd2bc4092b0441698ce1bfe8c3c4a5c9f3ca0271d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42cf5fbbc10bd6717eecf7dd2bc4092b0441698ce1bfe8c3c4a5c9f3ca0271d2", kill_on_drop: false }`
[INFO] [stdout] 42cf5fbbc10bd6717eecf7dd2bc4092b0441698ce1bfe8c3c4a5c9f3ca0271d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 87233809b4f5d66bf41efc206f0a9cbdb706df0b8c703753035f39a4ea580afd
[INFO] running `Command { std: "docker" "start" "-a" "87233809b4f5d66bf41efc206f0a9cbdb706df0b8c703753035f39a4ea580afd", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling AdventOfRust2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `letter_count` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/bin/day2.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             let count = letter_count.get(&c).unwrap_or(&0);
[INFO] [stdout]    |                         ------------ immutable borrow occurs here
[INFO] [stdout] 25 |             letter_count.insert(c, count + 1);
[INFO] [stdout]    |             ^^^^^^^^^^^^           ----- immutable borrow later used here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.57s
[INFO] running `Command { std: "docker" "inspect" "87233809b4f5d66bf41efc206f0a9cbdb706df0b8c703753035f39a4ea580afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87233809b4f5d66bf41efc206f0a9cbdb706df0b8c703753035f39a4ea580afd", kill_on_drop: false }`
[INFO] [stdout] 87233809b4f5d66bf41efc206f0a9cbdb706df0b8c703753035f39a4ea580afd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f198ecb81ecf35b9fa607b43d01b372ed03bfe0b39075ebb829cebd5a659695
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f198ecb81ecf35b9fa607b43d01b372ed03bfe0b39075ebb829cebd5a659695", kill_on_drop: false }`
[INFO] [stderr]    Compiling AdventOfRust2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `letter_count` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/bin/day2.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             let count = letter_count.get(&c).unwrap_or(&0);
[INFO] [stdout]    |                         ------------ immutable borrow occurs here
[INFO] [stdout] 25 |             letter_count.insert(c, count + 1);
[INFO] [stdout]    |             ^^^^^^^^^^^^           ----- immutable borrow later used here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "9f198ecb81ecf35b9fa607b43d01b372ed03bfe0b39075ebb829cebd5a659695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f198ecb81ecf35b9fa607b43d01b372ed03bfe0b39075ebb829cebd5a659695", kill_on_drop: false }`
[INFO] [stdout] 9f198ecb81ecf35b9fa607b43d01b372ed03bfe0b39075ebb829cebd5a659695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5755fa33359d21b606160244fe2e7ee4c804ae3d2e74a1847038410138ccd9b6
[INFO] running `Command { std: "docker" "start" "-a" "5755fa33359d21b606160244fe2e7ee4c804ae3d2e74a1847038410138ccd9b6", kill_on_drop: false }`
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/day1-925d3a3dd3088db3
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/day2-5b24672b682c4d80
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_calc_checksum ... ok
[INFO] [stdout] test test_find_common_letters ... ok
[INFO] [stdout] test test_find_box_ids ... ok
[INFO] [stdout] test test_count_exactly_three ... ok
[INFO] [stdout] test test_differ_by_one_char ... ok
[INFO] [stdout] test test_count_exactly_two ... 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-fe6fac644fb3220d
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_find_non_overlapping_id ... ok
[INFO] [stdout] test test_parse_line ... 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/day8-34f55e4b4f9eb3f3
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_compute_root_node_value ... ok
[INFO] [stdout] test test_sum_metadata ... 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/rustwide/target/debug/deps/day9-f386091426deba3d
[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 `Command { std: "docker" "inspect" "5755fa33359d21b606160244fe2e7ee4c804ae3d2e74a1847038410138ccd9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5755fa33359d21b606160244fe2e7ee4c804ae3d2e74a1847038410138ccd9b6", kill_on_drop: false }`
[INFO] [stdout] 5755fa33359d21b606160244fe2e7ee4c804ae3d2e74a1847038410138ccd9b6