[INFO] cloning repository https://github.com/RheoTommy/at_coder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RheoTommy/at_coder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 899a985723b46f0ca1e189409010794a5f56d998 [INFO] checking RheoTommy/at_coder against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RheoTommy/at_coder on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RheoTommy/at_coder [INFO] finished tweaking git repo https://github.com/RheoTommy/at_coder [INFO] tweaked toml for git repo https://github.com/RheoTommy/at_coder written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/RheoTommy/at_coder already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 214b2713e7e5a2e07fd5e39d2783741acdd5146ead679c3f3e19510a13c12578 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "214b2713e7e5a2e07fd5e39d2783741acdd5146ead679c3f3e19510a13c12578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "214b2713e7e5a2e07fd5e39d2783741acdd5146ead679c3f3e19510a13c12578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "214b2713e7e5a2e07fd5e39d2783741acdd5146ead679c3f3e19510a13c12578", kill_on_drop: false }` [INFO] [stdout] 214b2713e7e5a2e07fd5e39d2783741acdd5146ead679c3f3e19510a13c12578 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 418c451049247cf591430e46674d10ea70eb51f7b335d02ce1ba432ae18d6057 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "418c451049247cf591430e46674d10ea70eb51f7b335d02ce1ba432ae18d6057", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling proc-macro2 v1.0.21 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Compiling syn v1.0.41 [INFO] [stderr] Compiling ndarray v0.13.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking text_io v0.1.8 [INFO] [stderr] Compiling cargo-snippet v0.6.5 [INFO] [stderr] Checking bitset-fixed v0.1.0 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking smallvec v1.2.0 [INFO] [stderr] Checking ascii v1.0.0 [INFO] [stderr] Checking superslice v1.0.0 [INFO] [stderr] Checking whiteread v0.5.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking petgraph v0.5.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking itertools-num v0.1.3 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking num-bigint v0.2.6 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_hc v0.2.0 [INFO] [stderr] Checking alga v0.9.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking nalgebra v0.20.0 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Compiling proconio-derive v0.1.6 [INFO] [stderr] Checking proconio v0.3.6 [INFO] [stderr] Checking at_coder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `vertex` [INFO] [stdout] --> src/bin/d.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut vertex = vec![vec![same; amount]; amount]; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertex` [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/d.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut vertex = vec![vec![same; amount]; amount]; [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: `writer` [INFO] [stdout] --> src/bin/f.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut writer = BufWriter::new(out.lock()); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [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/f.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut writer = BufWriter::new(out.lock()); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `writer` [INFO] [stdout] --> src/bin/f.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut writer = BufWriter::new(out.lock()); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer` [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/f.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut writer = BufWriter::new(out.lock()); [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: `vertex` [INFO] [stdout] --> src/bin/d.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut vertex = vec![vec![same; amount]; amount]; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertex` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/bin/a.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | for k in (1..n).rev() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [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/d.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut vertex = vec![vec![same; amount]; amount]; [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: unused variable: `k` [INFO] [stdout] --> src/bin/a.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | for k in (1..n).rev() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 21s [INFO] running `Command { std: "docker" "inspect" "418c451049247cf591430e46674d10ea70eb51f7b335d02ce1ba432ae18d6057", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "418c451049247cf591430e46674d10ea70eb51f7b335d02ce1ba432ae18d6057", kill_on_drop: false }` [INFO] [stdout] 418c451049247cf591430e46674d10ea70eb51f7b335d02ce1ba432ae18d6057