[INFO] cloning repository https://github.com/skrap/aoc_rust_2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skrap/aoc_rust_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrap%2Faoc_rust_2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrap%2Faoc_rust_2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 34dc66371b3eb36e637ea0a25837331ba3dd3a92 [INFO] checking skrap/aoc_rust_2018 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrap%2Faoc_rust_2018" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skrap/aoc_rust_2018 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/skrap/aoc_rust_2018 [INFO] finished tweaking git repo https://github.com/skrap/aoc_rust_2018 [INFO] tweaked toml for git repo https://github.com/skrap/aoc_rust_2018 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/skrap/aoc_rust_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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded linked-list v0.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e9add373e5d9f2c2140b256de1120f7c29b4abe622c9257ef83ca01c4ddacfcf [INFO] running `Command { std: "docker" "start" "-a" "e9add373e5d9f2c2140b256de1120f7c29b4abe622c9257ef83ca01c4ddacfcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e9add373e5d9f2c2140b256de1120f7c29b4abe622c9257ef83ca01c4ddacfcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9add373e5d9f2c2140b256de1120f7c29b4abe622c9257ef83ca01c4ddacfcf", kill_on_drop: false }` [INFO] [stdout] e9add373e5d9f2c2140b256de1120f7c29b4abe622c9257ef83ca01c4ddacfcf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 304197dfa7a9b197b94eac7de876d0b7fe1c65b42852299544047b59307c8196 [INFO] running `Command { std: "docker" "start" "-a" "304197dfa7a9b197b94eac7de876d0b7fe1c65b42852299544047b59307c8196", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking linked-list v0.0.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Checking slice-deque v0.1.16 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking advent_of_code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/7a.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut new_deps = step.deps.drain(..).filter(|d| d != ready_name).collect(); [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/bin/23.rs:143:13 [INFO] [stdout] | [INFO] [stdout] 143 | let mut start_region_bots : Vec<_> = start_bots.iter().filter(|b| b.intersects(&bot)).map(|b| b.clone()).collect(); [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/bin/20.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | let mut room = map.get_mut(&pos).unwrap(); [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: struct `Box` is never constructed [INFO] [stdout] --> src/bin/23.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Box { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intersect` is never used [INFO] [stdout] --> src/bin/23.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn intersect(a: &(Coord,Coord), b: &(Coord, Coord)) -> Option<(Coord,Coord)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `union` is never used [INFO] [stdout] --> src/bin/23.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn union(a: &(Coord,Coord), b: &(Coord, Coord)) -> (Coord,Coord) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `divide` is never used [INFO] [stdout] --> src/bin/23.rs:37:4 [INFO] [stdout] | [INFO] [stdout] 37 | fn divide(a: &(Coord,Coord)) -> [Option<(Coord,Coord)>;2] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `intersect`, `union`, and `split` are never used [INFO] [stdout] --> src/bin/23.rs:47:8 [INFO] [stdout] | [INFO] [stdout] 46 | impl Box { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 47 | fn intersect(&self, other: &Box) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn union(&self, other: &Box) -> Box { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | fn split(&self) -> [Option;8] { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `bbox` and `union` are never used [INFO] [stdout] --> src/bin/23.rs:86:8 [INFO] [stdout] | [INFO] [stdout] 75 | impl Region { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 86 | fn bbox(&self) -> Box { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | fn union(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> src/bin/19.rs:2:34 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::{BTreeMap, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/23.rs:143:13 [INFO] [stdout] | [INFO] [stdout] 143 | let mut start_region_bots : Vec<_> = start_bots.iter().filter(|b| b.intersects(&bot)).map(|b| b.clone()).collect(); [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: struct `Box` is never constructed [INFO] [stdout] --> src/bin/23.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Box { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intersect` is never used [INFO] [stdout] --> src/bin/23.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn intersect(a: &(Coord,Coord), b: &(Coord, Coord)) -> Option<(Coord,Coord)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `union` is never used [INFO] [stdout] --> src/bin/23.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn union(a: &(Coord,Coord), b: &(Coord, Coord)) -> (Coord,Coord) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `divide` is never used [INFO] [stdout] --> src/bin/23.rs:37:4 [INFO] [stdout] | [INFO] [stdout] 37 | fn divide(a: &(Coord,Coord)) -> [Option<(Coord,Coord)>;2] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `intersect`, `union`, and `split` are never used [INFO] [stdout] --> src/bin/23.rs:47:8 [INFO] [stdout] | [INFO] [stdout] 46 | impl Box { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 47 | fn intersect(&self, other: &Box) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn union(&self, other: &Box) -> Box { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | fn split(&self) -> [Option;8] { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `bbox` and `union` are never used [INFO] [stdout] --> src/bin/23.rs:86:8 [INFO] [stdout] | [INFO] [stdout] 75 | impl Region { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 86 | fn bbox(&self) -> Box { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | fn union(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15b.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl Board { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 30 | fn print(&self, units: &Vec) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15b.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 89 | impl Router { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 137 | fn print(&self, start_pos: &Pos) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/7b.rs:63:17 [INFO] [stdout] | [INFO] [stdout] 63 | let mut new_deps = step.deps.drain(..).filter(|d| d != &name).collect(); [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/bin/20.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | let mut room = map.get_mut(&pos).unwrap(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> src/bin/19.rs:2:34 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::{BTreeMap, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stdout` [INFO] [stdout] --> src/bin/18.rs:121:13 [INFO] [stdout] | [INFO] [stdout] 121 | let mut stdout = std::io::stdout(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/24.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | 'game: loop { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/18.rs:121:9 [INFO] [stdout] | [INFO] [stdout] 121 | let mut stdout = std::io::stdout(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15b.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl Board { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 30 | fn print(&self, units: &Vec) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15b.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 89 | impl Router { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 137 | fn print(&self, start_pos: &Pos) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/24.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | 'game: loop { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/7b.rs:63:17 [INFO] [stdout] | [INFO] [stdout] 63 | let mut new_deps = step.deps.drain(..).filter(|d| d != &name).collect(); [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: field `constl` is never read [INFO] [stdout] --> src/bin/25.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct Point { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 2 | coords: (i8,i8,i8,i8), [INFO] [stdout] 3 | constl: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `constl` is never read [INFO] [stdout] --> src/bin/25.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct Point { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 2 | coords: (i8,i8,i8,i8), [INFO] [stdout] 3 | constl: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 89 | impl Router { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 137 | fn print(&self, start_pos: &Pos) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/7a.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut new_deps = step.deps.drain(..).filter(|d| d != ready_name).collect(); [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: unused variable: `stdout` [INFO] [stdout] --> src/bin/18.rs:121:13 [INFO] [stdout] | [INFO] [stdout] 121 | let mut stdout = std::io::stdout(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout` [INFO] [stdout] | [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/bin/18.rs:121:9 [INFO] [stdout] | [INFO] [stdout] 121 | let mut stdout = std::io::stdout(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/bin/15.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 89 | impl Router { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 137 | fn print(&self, start_pos: &Pos) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.98s [INFO] running `Command { std: "docker" "inspect" "304197dfa7a9b197b94eac7de876d0b7fe1c65b42852299544047b59307c8196", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "304197dfa7a9b197b94eac7de876d0b7fe1c65b42852299544047b59307c8196", kill_on_drop: false }` [INFO] [stdout] 304197dfa7a9b197b94eac7de876d0b7fe1c65b42852299544047b59307c8196 [INFO] checking skrap/aoc_rust_2018 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrap%2Faoc_rust_2018" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skrap/aoc_rust_2018 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/skrap/aoc_rust_2018 [INFO] finished tweaking git repo https://github.com/skrap/aoc_rust_2018 [INFO] tweaked toml for git repo https://github.com/skrap/aoc_rust_2018 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/skrap/aoc_rust_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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3c44665334ce448632a9cc8203b0804215abec39343f24e01f197a1b3b4f8b02 [INFO] running `Command { std: "docker" "start" "-a" "3c44665334ce448632a9cc8203b0804215abec39343f24e01f197a1b3b4f8b02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3c44665334ce448632a9cc8203b0804215abec39343f24e01f197a1b3b4f8b02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c44665334ce448632a9cc8203b0804215abec39343f24e01f197a1b3b4f8b02", kill_on_drop: false }` [INFO] [stdout] 3c44665334ce448632a9cc8203b0804215abec39343f24e01f197a1b3b4f8b02 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 15e765c0bdff87e3cdb016126878bc729e0cf9017a50d560aa8cc82d60db94fc [INFO] running `Command { std: "docker" "start" "-a" "15e765c0bdff87e3cdb016126878bc729e0cf9017a50d560aa8cc82d60db94fc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking linked-list v0.0.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.4 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Checking slice-deque v0.1.16 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.1.0/src/exec.rs:754:13 [INFO] [stdout] | [INFO] [stdout] 754 | / match dfa::Fsm::reverse( [INFO] [stdout] 755 | | &self.ro.dfa_reverse, [INFO] [stdout] 756 | | self.cache, [INFO] [stdout] 757 | | false, [INFO] [stdout] ... | [INFO] [stdout] 764 | | Quit => return Some(Quit), [INFO] [stdout] 765 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "15e765c0bdff87e3cdb016126878bc729e0cf9017a50d560aa8cc82d60db94fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15e765c0bdff87e3cdb016126878bc729e0cf9017a50d560aa8cc82d60db94fc", kill_on_drop: false }` [INFO] [stdout] 15e765c0bdff87e3cdb016126878bc729e0cf9017a50d560aa8cc82d60db94fc