[INFO] cloning repository https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huwwynnjones/advent_of_code_2020_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0201f425058b18de046cc19a07efdd9cad79ca67
[INFO] checking huwwynnjones/advent_of_code_2020_rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huwwynnjones/advent_of_code_2020_rust 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/huwwynnjones/advent_of_code_2020_rust
[INFO] finished tweaking git repo https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] tweaked toml for git repo https://github.com/huwwynnjones/advent_of_code_2020_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/huwwynnjones/advent_of_code_2020_rust 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 965b3861368a50c1d3788cd3d9433524138a85fc2866f7302b4b4a3623f5fd7f
[INFO] running `Command { std: "docker" "start" "-a" "965b3861368a50c1d3788cd3d9433524138a85fc2866f7302b4b4a3623f5fd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "965b3861368a50c1d3788cd3d9433524138a85fc2866f7302b4b4a3623f5fd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "965b3861368a50c1d3788cd3d9433524138a85fc2866f7302b4b4a3623f5fd7f", kill_on_drop: false }`
[INFO] [stdout] 965b3861368a50c1d3788cd3d9433524138a85fc2866f7302b4b4a3623f5fd7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b6f9973e32155a6ef81a886ee02cc0f1de449535f93503e47406fffa3720c6ad
[INFO] running `Command { std: "docker" "start" "-a" "b6f9973e32155a6ef81a886ee02cc0f1de449535f93503e47406fffa3720c6ad", kill_on_drop: false }`
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `seat_rows` is never used
[INFO] [stdout]  --> src/day_5.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn seat_rows() -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lower_half` is never used
[INFO] [stdout]  --> src/day_5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn lower_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_half` is never used
[INFO] [stdout]  --> src/day_5.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn upper_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mid_point` is never used
[INFO] [stdout]   --> src/day_5.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn mid_point(seats: &[u32]) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_seats` is never used
[INFO] [stdout]   --> src/day_5.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn split_seats(seats: &[u32], indicator: char) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_row` is never used
[INFO] [stdout]   --> src/day_5.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn find_row(seats: &[u32], input: &[char]) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_to_op_pair` is never used
[INFO] [stdout]   --> src/day_8.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn string_to_op_pair(input: &str) -> (OpCode, i64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "b6f9973e32155a6ef81a886ee02cc0f1de449535f93503e47406fffa3720c6ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f9973e32155a6ef81a886ee02cc0f1de449535f93503e47406fffa3720c6ad", kill_on_drop: false }`
[INFO] [stdout] b6f9973e32155a6ef81a886ee02cc0f1de449535f93503e47406fffa3720c6ad
[INFO] checking huwwynnjones/advent_of_code_2020_rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huwwynnjones/advent_of_code_2020_rust 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/huwwynnjones/advent_of_code_2020_rust
[INFO] finished tweaking git repo https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] tweaked toml for git repo https://github.com/huwwynnjones/advent_of_code_2020_rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/huwwynnjones/advent_of_code_2020_rust 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2781848bf1c79596082fa4e5d3969aad7109181e97dcb47e0ff461c2d6dafa78
[INFO] running `Command { std: "docker" "start" "-a" "2781848bf1c79596082fa4e5d3969aad7109181e97dcb47e0ff461c2d6dafa78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2781848bf1c79596082fa4e5d3969aad7109181e97dcb47e0ff461c2d6dafa78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2781848bf1c79596082fa4e5d3969aad7109181e97dcb47e0ff461c2d6dafa78", kill_on_drop: false }`
[INFO] [stdout] 2781848bf1c79596082fa4e5d3969aad7109181e97dcb47e0ff461c2d6dafa78
[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" "-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] 5f8f2c160fd3f177cefacd9d3485ca32290c2f5e133d0242f0e5d35587f2e3f1
[INFO] running `Command { std: "docker" "start" "-a" "5f8f2c160fd3f177cefacd9d3485ca32290c2f5e133d0242f0e5d35587f2e3f1", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `seat_rows` is never used
[INFO] [stdout]  --> src/day_5.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn seat_rows() -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lower_half` is never used
[INFO] [stdout]  --> src/day_5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn lower_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_half` is never used
[INFO] [stdout]  --> src/day_5.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn upper_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mid_point` is never used
[INFO] [stdout]   --> src/day_5.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn mid_point(seats: &[u32]) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_seats` is never used
[INFO] [stdout]   --> src/day_5.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn split_seats(seats: &[u32], indicator: char) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_row` is never used
[INFO] [stdout]   --> src/day_5.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn find_row(seats: &[u32], input: &[char]) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_to_op_pair` is never used
[INFO] [stdout]   --> src/day_8.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn string_to_op_pair(input: &str) -> (OpCode, i64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "5f8f2c160fd3f177cefacd9d3485ca32290c2f5e133d0242f0e5d35587f2e3f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8f2c160fd3f177cefacd9d3485ca32290c2f5e133d0242f0e5d35587f2e3f1", kill_on_drop: false }`
[INFO] [stdout] 5f8f2c160fd3f177cefacd9d3485ca32290c2f5e133d0242f0e5d35587f2e3f1