[INFO] cloning repository https://github.com/dsnam/aoc-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dsnam/aoc-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsnam%2Faoc-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsnam%2Faoc-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cc5cc4964901faf9e17e38fc5608daee9b30495
[INFO] checking dsnam/aoc-2018 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsnam%2Faoc-2018" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dsnam/aoc-2018
[INFO] finished tweaking git repo https://github.com/dsnam/aoc-2018
[INFO] tweaked toml for git repo https://github.com/dsnam/aoc-2018 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dsnam/aoc-2018 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dsnam/aoc-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6f373ed681ed813579ec6e21bcb0031808278ec9ecece50ee6560cbffe8ddc9
[INFO] running `Command { std: "docker" "start" "-a" "c6f373ed681ed813579ec6e21bcb0031808278ec9ecece50ee6560cbffe8ddc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6f373ed681ed813579ec6e21bcb0031808278ec9ecece50ee6560cbffe8ddc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f373ed681ed813579ec6e21bcb0031808278ec9ecece50ee6560cbffe8ddc9", kill_on_drop: false }`
[INFO] [stdout] c6f373ed681ed813579ec6e21bcb0031808278ec9ecece50ee6560cbffe8ddc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95df9a97c2e14817e24848ad6e0d66a8321719e1ff0951c5e0edafaea648b70
[INFO] running `Command { std: "docker" "start" "-a" "d95df9a97c2e14817e24848ad6e0d66a8321719e1ff0951c5e0edafaea648b70", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/day_one.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |             frequencies.insert({curr_freq});
[INFO] [stdout]    |                                ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 45 -             frequencies.insert({curr_freq});
[INFO] [stdout] 45 +             frequencies.insert(curr_freq );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day_two.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |           v.push(line?
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 19 | |             .trim()
[INFO] [stdout] 20 | |             .parse()
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/day_one.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |             frequencies.insert({curr_freq});
[INFO] [stdout]    |                                ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 45 -             frequencies.insert({curr_freq});
[INFO] [stdout] 45 +             frequencies.insert(curr_freq );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code` (bin "advent-of-code") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day_two.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |           v.push(line?
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 19 | |             .trim()
[INFO] [stdout] 20 | |             .parse()
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code` (bin "advent-of-code" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d95df9a97c2e14817e24848ad6e0d66a8321719e1ff0951c5e0edafaea648b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95df9a97c2e14817e24848ad6e0d66a8321719e1ff0951c5e0edafaea648b70", kill_on_drop: false }`
[INFO] [stdout] d95df9a97c2e14817e24848ad6e0d66a8321719e1ff0951c5e0edafaea648b70