[INFO] cloning repository https://github.com/sethsamuel/adventofcode-2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sethsamuel/adventofcode-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethsamuel%2Fadventofcode-2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethsamuel%2Fadventofcode-2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6644d3395ce6f7ef4cdb9629c38d348d3efdd905 [INFO] checking sethsamuel/adventofcode-2018 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethsamuel%2Fadventofcode-2018" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sethsamuel/adventofcode-2018 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/sethsamuel/adventofcode-2018 [INFO] finished tweaking git repo https://github.com/sethsamuel/adventofcode-2018 [INFO] tweaked toml for git repo https://github.com/sethsamuel/adventofcode-2018 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sethsamuel/adventofcode-2018 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] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dialoguer v0.3.0 [INFO] [stderr] Downloaded smallvec v0.6.7 [INFO] [stderr] Downloaded parking_lot v0.7.0 [INFO] [stderr] Downloaded clicolors-control v0.3.0 [INFO] [stderr] Downloaded number_prefix v0.2.8 [INFO] [stderr] Downloaded tempfile v2.2.0 [INFO] [stderr] Downloaded console v0.7.0 [INFO] [stderr] Downloaded indicatif v0.10.1 [INFO] [stderr] Downloaded skiplist v0.2.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d35a0ab6df7edb0222ec13e716c9f1c790b982c64e32b9f3d9cf1c957837b1d5 [INFO] running `Command { std: "docker" "start" "-a" "d35a0ab6df7edb0222ec13e716c9f1c790b982c64e32b9f3d9cf1c957837b1d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d35a0ab6df7edb0222ec13e716c9f1c790b982c64e32b9f3d9cf1c957837b1d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d35a0ab6df7edb0222ec13e716c9f1c790b982c64e32b9f3d9cf1c957837b1d5", kill_on_drop: false }` [INFO] [stdout] d35a0ab6df7edb0222ec13e716c9f1c790b982c64e32b9f3d9cf1c957837b1d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fa8982ea8101acc729aae8fa064636ef0bca80635b7bda62b3b720576c2a3328 [INFO] running `Command { std: "docker" "start" "-a" "fa8982ea8101acc729aae8fa064636ef0bca80635b7bda62b3b720576c2a3328", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking smallvec v0.6.7 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_xorshift v0.1.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking rand v0.4.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v0.3.0 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Checking tempfile v2.2.0 [INFO] [stderr] Checking skiplist v0.2.10 [INFO] [stderr] Checking parking_lot v0.7.0 [INFO] [stderr] Checking console v0.7.0 [INFO] [stderr] Checking indicatif v0.10.1 [INFO] [stderr] Checking dialoguer v0.3.0 [INFO] [stderr] Checking adventofcode-2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:35:41 [INFO] [stdout] | [INFO] [stdout] 35 | fn _puzzle_prompt() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 35 | fn _puzzle_prompt() -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:35:41 [INFO] [stdout] | [INFO] [stdout] 35 | fn _puzzle_prompt() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 35 | fn _puzzle_prompt() -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_10/mod.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | for mut particle in &mut particles { [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 does not need to be mutable [INFO] [stdout] --> src/day_10/mod.rs:194:13 [INFO] [stdout] | [INFO] [stdout] 194 | for mut particle in &mut particles { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `total_plants` is assigned to, but never used [INFO] [stdout] --> src/day_12/mod.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut total_plants = initial_state.clone().filter(|c| *c == PLANT).count(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_total_plants` instead [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/day_4/mod.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut current_guard = guards.entry(id.to_string()).or_insert(Guard { [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_4/mod.rs:146:17 [INFO] [stdout] | [INFO] [stdout] 146 | let mut current_guard = guards.entry(id.to_string()).or_insert(Guard { [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_10/mod.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | for mut particle in &mut particles { [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 does not need to be mutable [INFO] [stdout] --> src/day_10/mod.rs:194:13 [INFO] [stdout] | [INFO] [stdout] 194 | for mut particle in &mut particles { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_7/mod.rs:155:25 [INFO] [stdout] | [INFO] [stdout] 155 | let mut next_step = next_steps[0]; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `total_plants` is assigned to, but never used [INFO] [stdout] --> src/day_12/mod.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut total_plants = initial_state.clone().filter(|c| *c == PLANT).count(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_total_plants` instead [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/day_4/mod.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut current_guard = guards.entry(id.to_string()).or_insert(Guard { [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_4/mod.rs:146:17 [INFO] [stdout] | [INFO] [stdout] 146 | let mut current_guard = guards.entry(id.to_string()).or_insert(Guard { [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day_7/mod.rs:155:25 [INFO] [stdout] | [INFO] [stdout] 155 | let mut next_step = next_steps[0]; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.59s [INFO] running `Command { std: "docker" "inspect" "fa8982ea8101acc729aae8fa064636ef0bca80635b7bda62b3b720576c2a3328", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa8982ea8101acc729aae8fa064636ef0bca80635b7bda62b3b720576c2a3328", kill_on_drop: false }` [INFO] [stdout] fa8982ea8101acc729aae8fa064636ef0bca80635b7bda62b3b720576c2a3328