[INFO] cloning repository https://github.com/plastic041/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/plastic041/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplastic041%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplastic041%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87e5a8451874c64ee9f2267c251f52c3ec3a85c0
[INFO] checking plastic041/aoc-2020 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%2Fplastic041%2Faoc-2020" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/plastic041/aoc-2020
[INFO] finished tweaking git repo https://github.com/plastic041/aoc-2020
[INFO] tweaked toml for git repo https://github.com/plastic041/aoc-2020 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/plastic041/aoc-2020 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/plastic041/aoc-2020 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3a0861b88c99ac3a53742759a410281eec660337a81cf56a41794dbfda4ab298
[INFO] running `Command { std: "docker" "start" "-a" "3a0861b88c99ac3a53742759a410281eec660337a81cf56a41794dbfda4ab298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a0861b88c99ac3a53742759a410281eec660337a81cf56a41794dbfda4ab298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0861b88c99ac3a53742759a410281eec660337a81cf56a41794dbfda4ab298", kill_on_drop: false }`
[INFO] [stdout] 3a0861b88c99ac3a53742759a410281eec660337a81cf56a41794dbfda4ab298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 17aa5a61b78b1e8309fec8a64db31770c0d5811d9aaeef6d36252a593950f83c
[INFO] running `Command { std: "docker" "start" "-a" "17aa5a61b78b1e8309fec8a64db31770c0d5811d9aaeef6d36252a593950f83c", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking grid v1.0.0
[INFO] [stderr]     Checking indexmap v2.11.4
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking tinyjson v2.5.1
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking advent_of_code v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/13.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/bin/01.rs:23:29
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 return Some((a * b).try_into().unwrap());
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/bin/01.rs:61:33
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     return Some((a * b * c).try_into().unwrap());
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent_of_code` (bin "01" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/13.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/15.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/22.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     loop {
[INFO] [stdout] 53 | |         round(&mut p1, &mut p2);
[INFO] [stdout] 54 | |
[INFO] [stdout] 55 | |         if p1.deck.len() == 0 {
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 63 |
[INFO] [stdout] 64 |       None
[INFO] [stdout]    |       ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/22.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bin/07.rs:36:15
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn bag(input: &str) -> IResult<&str, Bag> {
[INFO] [stdout]    |               ^^^^             ^^^^  ^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |                |
[INFO] [stdout]    |               |                the same lifetime is elided here
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn bag(input: &str) -> IResult<&str, Bag<'_>> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17aa5a61b78b1e8309fec8a64db31770c0d5811d9aaeef6d36252a593950f83c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17aa5a61b78b1e8309fec8a64db31770c0d5811d9aaeef6d36252a593950f83c", kill_on_drop: false }`
[INFO] [stdout] 17aa5a61b78b1e8309fec8a64db31770c0d5811d9aaeef6d36252a593950f83c