[INFO] cloning repository https://github.com/fabien-michel/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabien-michel/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10eeb0d8f3b3792e61c5acb0d45f017fd63ee0cb
[INFO] checking fabien-michel/advent-of-code-2020 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fabien-michel/advent-of-code-2020 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/fabien-michel/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/fabien-michel/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/fabien-michel/advent-of-code-2020 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fabien-michel/advent-of-code-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a65e88fc4c076b74b9b6b76618f5959950b4e73ae9c19046c7b263c689c1f2f0
[INFO] running `Command { std: "docker" "start" "-a" "a65e88fc4c076b74b9b6b76618f5959950b4e73ae9c19046c7b263c689c1f2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a65e88fc4c076b74b9b6b76618f5959950b4e73ae9c19046c7b263c689c1f2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65e88fc4c076b74b9b6b76618f5959950b4e73ae9c19046c7b263c689c1f2f0", kill_on_drop: false }`
[INFO] [stdout] a65e88fc4c076b74b9b6b76618f5959950b4e73ae9c19046c7b263c689c1f2f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 62f0da51d80ba5ce7b2b043f5237c19a319e47f6c90cae149e0b76c8d3343a8e
[INFO] running `Command { std: "docker" "start" "-a" "62f0da51d80ba5ce7b2b043f5237c19a319e47f6c90cae149e0b76c8d3343a8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |         "cm" => (150..=193),
[INFO] [stdout]    |                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -         "cm" => (150..=193),
[INFO] [stdout] 78 +         "cm" => 150..=193,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "in" => (59..=76),
[INFO] [stdout]    |                 ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         "in" => (59..=76),
[INFO] [stdout] 79 +         "in" => 59..=76,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |         "cm" => (150..=193),
[INFO] [stdout]    |                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -         "cm" => (150..=193),
[INFO] [stdout] 78 +         "cm" => 150..=193,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "in" => (59..=76),
[INFO] [stdout]    |                 ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         "in" => (59..=76),
[INFO] [stdout] 79 +         "in" => 59..=76,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/days/day20_01.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tile {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 28 |     id: usize,
[INFO] [stdout] 29 |     data: TileData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ingredient` is never constructed
[INFO] [stdout]   --> src/days/day21.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Ingredient {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/days/day20_01.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tile {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 28 |     id: usize,
[INFO] [stdout] 29 |     data: TileData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ingredient` is never constructed
[INFO] [stdout]   --> src/days/day21.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Ingredient {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "62f0da51d80ba5ce7b2b043f5237c19a319e47f6c90cae149e0b76c8d3343a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f0da51d80ba5ce7b2b043f5237c19a319e47f6c90cae149e0b76c8d3343a8e", kill_on_drop: false }`
[INFO] [stdout] 62f0da51d80ba5ce7b2b043f5237c19a319e47f6c90cae149e0b76c8d3343a8e
[INFO] checking fabien-michel/advent-of-code-2020 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabien-michel%2Fadvent-of-code-2020" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fabien-michel/advent-of-code-2020 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fabien-michel/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/fabien-michel/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/fabien-michel/advent-of-code-2020 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fabien-michel/advent-of-code-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec5db8db1344adf38c215fbf6d951414de87b4594d7bddbe0b96899149b81373
[INFO] running `Command { std: "docker" "start" "-a" "ec5db8db1344adf38c215fbf6d951414de87b4594d7bddbe0b96899149b81373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec5db8db1344adf38c215fbf6d951414de87b4594d7bddbe0b96899149b81373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5db8db1344adf38c215fbf6d951414de87b4594d7bddbe0b96899149b81373", kill_on_drop: false }`
[INFO] [stdout] ec5db8db1344adf38c215fbf6d951414de87b4594d7bddbe0b96899149b81373
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06771d466bf77871c938de06596552b59642cbc24b44595cc252545cfc7a894b
[INFO] running `Command { std: "docker" "start" "-a" "06771d466bf77871c938de06596552b59642cbc24b44595cc252545cfc7a894b", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |         "cm" => (150..=193),
[INFO] [stdout]    |                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -         "cm" => (150..=193),
[INFO] [stdout] 78 +         "cm" => 150..=193,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "in" => (59..=76),
[INFO] [stdout]    |                 ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         "in" => (59..=76),
[INFO] [stdout] 79 +         "in" => 59..=76,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |         "cm" => (150..=193),
[INFO] [stdout]    |                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -         "cm" => (150..=193),
[INFO] [stdout] 78 +         "cm" => 150..=193,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/days/day04.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "in" => (59..=76),
[INFO] [stdout]    |                 ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         "in" => (59..=76),
[INFO] [stdout] 79 +         "in" => 59..=76,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/days/day20_01.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tile {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 28 |     id: usize,
[INFO] [stdout] 29 |     data: TileData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ingredient` is never constructed
[INFO] [stdout]   --> src/days/day21.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Ingredient {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/days/day20_01.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tile {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 28 |     id: usize,
[INFO] [stdout] 29 |     data: TileData,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ingredient` is never constructed
[INFO] [stdout]   --> src/days/day21.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Ingredient {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "06771d466bf77871c938de06596552b59642cbc24b44595cc252545cfc7a894b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06771d466bf77871c938de06596552b59642cbc24b44595cc252545cfc7a894b", kill_on_drop: false }`
[INFO] [stdout] 06771d466bf77871c938de06596552b59642cbc24b44595cc252545cfc7a894b