[INFO] cloning repository https://github.com/stereoknife/advent-of-code-21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stereoknife/advent-of-code-21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstereoknife%2Fadvent-of-code-21", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstereoknife%2Fadvent-of-code-21'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84ec9adf7be1689f378039a8d34a3c9196a03387
[INFO] checking stereoknife/advent-of-code-21 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstereoknife%2Fadvent-of-code-21" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stereoknife/advent-of-code-21 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stereoknife/advent-of-code-21
[INFO] finished tweaking git repo https://github.com/stereoknife/advent-of-code-21
[INFO] tweaked toml for git repo https://github.com/stereoknife/advent-of-code-21 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/stereoknife/advent-of-code-21 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0697c450f033e1a63706465824c90e7bdfe0801a0a091a336ef83b05a5814865
[INFO] running `Command { std: "docker" "start" "-a" "0697c450f033e1a63706465824c90e7bdfe0801a0a091a336ef83b05a5814865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0697c450f033e1a63706465824c90e7bdfe0801a0a091a336ef83b05a5814865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0697c450f033e1a63706465824c90e7bdfe0801a0a091a336ef83b05a5814865", kill_on_drop: false }`
[INFO] [stdout] 0697c450f033e1a63706465824c90e7bdfe0801a0a091a336ef83b05a5814865
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a055e56f0f0f2acf9ae84c1b5839d31ef1a1f4a6ded868b5bf98e84d0d1bd4d7
[INFO] running `Command { std: "docker" "start" "-a" "a055e56f0f0f2acf9ae84c1b5839d31ef1a1f4a6ded868b5bf98e84d0d1bd4d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking advent-of-code-21 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `has_flashed`
[INFO] [stdout]   --> src/bin/day-11b.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_flashed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day-11b.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_diagram` is never used
[INFO] [stdout]   --> src/bin/day-05b.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn print_diagram(map: &HashMap<(i32,i32), i32>, maxx: i32, maxy: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11b.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let yM = y < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `y_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11b.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let xM = x < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `x_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `has_flashed`
[INFO] [stdout]   --> src/bin/day-11a.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_flashed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day-11a.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11a.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let yM = y < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `y_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11a.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let xM = x < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `x_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `has_flashed`
[INFO] [stdout]   --> src/bin/day-11a.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_flashed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day-11a.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11a.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let yM = y < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `y_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11a.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let xM = x < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `x_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_diagram` is never used
[INFO] [stdout]   --> src/bin/day-05b.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn print_diagram(map: &HashMap<(i32,i32), i32>, maxx: i32, maxy: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `has_flashed`
[INFO] [stdout]   --> src/bin/day-11b.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_has_flashed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day-11b.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut has_flashed = flashes.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11b.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let yM = y < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `y_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xM` should have a snake case name
[INFO] [stdout]   --> src/bin/day-11b.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let xM = x < 9;
[INFO] [stdout]    |                 ^^ help: convert the identifier to snake case: `x_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `Command { std: "docker" "inspect" "a055e56f0f0f2acf9ae84c1b5839d31ef1a1f4a6ded868b5bf98e84d0d1bd4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a055e56f0f0f2acf9ae84c1b5839d31ef1a1f4a6ded868b5bf98e84d0d1bd4d7", kill_on_drop: false }`
[INFO] [stdout] a055e56f0f0f2acf9ae84c1b5839d31ef1a1f4a6ded868b5bf98e84d0d1bd4d7