[INFO] cloning repository https://github.com/Diggsey/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Diggsey/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiggsey%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiggsey%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a47d907d11b18ff7ebce54ac654c616d55ca744e
[INFO] checking Diggsey/aoc2021 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%2FDiggsey%2Faoc2021" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Diggsey/aoc2021
[INFO] finished tweaking git repo https://github.com/Diggsey/aoc2021
[INFO] tweaked toml for git repo https://github.com/Diggsey/aoc2021 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Diggsey/aoc2021 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/Diggsey/aoc2021 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b716213bc1aab979bae6d587f294886c4670904149f8f8d39044e6f285a21479
[INFO] running `Command { std: "docker" "start" "-a" "b716213bc1aab979bae6d587f294886c4670904149f8f8d39044e6f285a21479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b716213bc1aab979bae6d587f294886c4670904149f8f8d39044e6f285a21479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b716213bc1aab979bae6d587f294886c4670904149f8f8d39044e6f285a21479", kill_on_drop: false }`
[INFO] [stdout] b716213bc1aab979bae6d587f294886c4670904149f8f8d39044e6f285a21479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7ad7fbb20c7e2185424b64173af45a9cc6e74cef351c8a59ed6f4a7de3e1aaab
[INFO] running `Command { std: "docker" "start" "-a" "7ad7fbb20c7e2185424b64173af45a9cc6e74cef351c8a59ed6f4a7de3e1aaab", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/bin/day18b.rs:119:37
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     .find(|&(_, c)| (c < '0' || c > '9'))
[INFO] [stdout]     |                                     ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                     .find(|&(_, c)| (c < '0' || c > '9'))
[INFO] [stdout] 119 +                     .find(|&(_, c)| c < '0' || c > '9' )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/bin/day18b.rs:119:37
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     .find(|&(_, c)| (c < '0' || c > '9'))
[INFO] [stdout]     |                                     ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                     .find(|&(_, c)| (c < '0' || c > '9'))
[INFO] [stdout] 119 +                     .find(|&(_, c)| c < '0' || c > '9' )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/day22a.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |           let (state, xa, xb, ya, yb, za, zb) = scan_fmt!(
[INFO] [stdout]    |  _______________________________________________^
[INFO] [stdout] 47 | |             line,
[INFO] [stdout] 48 | |             "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 49 | |             String,
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |             i32
[INFO] [stdout] 56 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "day22a") due to 8 previous errors
[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/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/day2a.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |             let (command, dist) = scan_fmt!(l, "{} {}", String, i32).unwrap();
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "day2a" test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "7ad7fbb20c7e2185424b64173af45a9cc6e74cef351c8a59ed6f4a7de3e1aaab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ad7fbb20c7e2185424b64173af45a9cc6e74cef351c8a59ed6f4a7de3e1aaab", kill_on_drop: false }`
[INFO] [stdout] 7ad7fbb20c7e2185424b64173af45a9cc6e74cef351c8a59ed6f4a7de3e1aaab