[INFO] cloning repository https://github.com/Ked-Ki/advent-of-code-2021-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ked-Ki/advent-of-code-2021-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKed-Ki%2Fadvent-of-code-2021-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKed-Ki%2Fadvent-of-code-2021-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a147db7c16cc1a6631aeee1b90f94469549059d
[INFO] checking Ked-Ki/advent-of-code-2021-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKed-Ki%2Fadvent-of-code-2021-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ked-Ki/advent-of-code-2021-rs 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/Ked-Ki/advent-of-code-2021-rs
[INFO] finished tweaking git repo https://github.com/Ked-Ki/advent-of-code-2021-rs
[INFO] tweaked toml for git repo https://github.com/Ked-Ki/advent-of-code-2021-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ked-Ki/advent-of-code-2021-rs 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 90467362b4b97c608502bbde4c1d4fca9ed08a567550ae17faaa60cd8ab90c66
[INFO] running `Command { std: "docker" "start" "-a" "90467362b4b97c608502bbde4c1d4fca9ed08a567550ae17faaa60cd8ab90c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90467362b4b97c608502bbde4c1d4fca9ed08a567550ae17faaa60cd8ab90c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90467362b4b97c608502bbde4c1d4fca9ed08a567550ae17faaa60cd8ab90c66", kill_on_drop: false }`
[INFO] [stdout] 90467362b4b97c608502bbde4c1d4fca9ed08a567550ae17faaa60cd8ab90c66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9445416527a75256e76bcc2cfb16a04411f1f606614812b02ef7b9ca906dda14
[INFO] running `Command { std: "docker" "start" "-a" "9445416527a75256e76bcc2cfb16a04411f1f606614812b02ef7b9ca906dda14", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking advent-of-code-2021-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]  --> src/util/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CatchAllError {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 6 |     reason: String
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CatchAllError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `diags` is never read
[INFO] [stdout]    --> src/day4.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct BoardCounts {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     diags: Vec<i32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BoardCounts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `new_idx` is never read
[INFO] [stdout]   --> src/day6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Population {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 44 |     counters: VecDeque<i64>,
[INFO] [stdout] 45 |     new_idx: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Population` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]  --> src/util/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CatchAllError {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 6 |     reason: String
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CatchAllError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `diags` is never read
[INFO] [stdout]    --> src/day4.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct BoardCounts {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     diags: Vec<i32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BoardCounts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `new_idx` is never read
[INFO] [stdout]   --> src/day6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Population {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 44 |     counters: VecDeque<i64>,
[INFO] [stdout] 45 |     new_idx: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Population` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.11s
[INFO] running `Command { std: "docker" "inspect" "9445416527a75256e76bcc2cfb16a04411f1f606614812b02ef7b9ca906dda14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9445416527a75256e76bcc2cfb16a04411f1f606614812b02ef7b9ca906dda14", kill_on_drop: false }`
[INFO] [stdout] 9445416527a75256e76bcc2cfb16a04411f1f606614812b02ef7b9ca906dda14
[INFO] checking Ked-Ki/advent-of-code-2021-rs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKed-Ki%2Fadvent-of-code-2021-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ked-Ki/advent-of-code-2021-rs on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ked-Ki/advent-of-code-2021-rs
[INFO] finished tweaking git repo https://github.com/Ked-Ki/advent-of-code-2021-rs
[INFO] tweaked toml for git repo https://github.com/Ked-Ki/advent-of-code-2021-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ked-Ki/advent-of-code-2021-rs 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 100dea8119bbfa2d3755855bd73d9ab05934fe4a492af152dfe91e0a9065263d
[INFO] running `Command { std: "docker" "start" "-a" "100dea8119bbfa2d3755855bd73d9ab05934fe4a492af152dfe91e0a9065263d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "100dea8119bbfa2d3755855bd73d9ab05934fe4a492af152dfe91e0a9065263d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100dea8119bbfa2d3755855bd73d9ab05934fe4a492af152dfe91e0a9065263d", kill_on_drop: false }`
[INFO] [stdout] 100dea8119bbfa2d3755855bd73d9ab05934fe4a492af152dfe91e0a9065263d
[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" "-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9639d29f1cf3d5866becec488cd465e3b023c76cc838abac9bd24a1c3e4c939d
[INFO] running `Command { std: "docker" "start" "-a" "9639d29f1cf3d5866becec488cd465e3b023c76cc838abac9bd24a1c3e4c939d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking advent-of-code-2021-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]  --> src/util/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CatchAllError {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 6 |     reason: String
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CatchAllError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `diags` is never read
[INFO] [stdout]    --> src/day4.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct BoardCounts {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     diags: Vec<i32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BoardCounts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `new_idx` is never read
[INFO] [stdout]   --> src/day6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Population {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 44 |     counters: VecDeque<i64>,
[INFO] [stdout] 45 |     new_idx: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Population` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reason` is never read
[INFO] [stdout]  --> src/util/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CatchAllError {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 6 |     reason: String
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CatchAllError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `diags` is never read
[INFO] [stdout]    --> src/day4.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct BoardCounts {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     diags: Vec<i32>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BoardCounts` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `new_idx` is never read
[INFO] [stdout]   --> src/day6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Population {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 44 |     counters: VecDeque<i64>,
[INFO] [stdout] 45 |     new_idx: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Population` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.06s
[INFO] running `Command { std: "docker" "inspect" "9639d29f1cf3d5866becec488cd465e3b023c76cc838abac9bd24a1c3e4c939d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9639d29f1cf3d5866becec488cd465e3b023c76cc838abac9bd24a1c3e4c939d", kill_on_drop: false }`
[INFO] [stdout] 9639d29f1cf3d5866becec488cd465e3b023c76cc838abac9bd24a1c3e4c939d