[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] 69efd4cfb08d4d2bd8758514e2c03714ca8ce827 [INFO] checking RheoTommy/at_coder against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RheoTommy/at_coder on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f733630d3b61777bbfb65218f21fa59f9a3aa3da07ce8409a7bc6ab859ca8c39 [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" "f733630d3b61777bbfb65218f21fa59f9a3aa3da07ce8409a7bc6ab859ca8c39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f733630d3b61777bbfb65218f21fa59f9a3aa3da07ce8409a7bc6ab859ca8c39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f733630d3b61777bbfb65218f21fa59f9a3aa3da07ce8409a7bc6ab859ca8c39", kill_on_drop: false }` [INFO] [stdout] f733630d3b61777bbfb65218f21fa59f9a3aa3da07ce8409a7bc6ab859ca8c39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 21383433fcc2020f2dd7d456f214c5176f49db0be70ae23e49a65e3ca45d7b15 [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" "21383433fcc2020f2dd7d456f214c5176f49db0be70ae23e49a65e3ca45d7b15", kill_on_drop: false }` [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling syn v1.0.41 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling cargo-snippet v0.6.5 [INFO] [stderr] Checking bitset-fixed v0.1.0 [INFO] [stderr] Checking whiteread v0.5.0 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking permutohedron v0.2.4 [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-bigint v0.2.6 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling proc-macro2 v1.0.21 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking petgraph v0.5.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand_hc v0.2.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking generic-array v0.13.2 [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 regex v1.3.6 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking alga v0.9.3 [INFO] [stderr] Checking ndarray v0.13.0 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking nalgebra v0.20.0 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Checking at_coder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `io` [INFO] [stdout] --> src/bin/d.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/b.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/b.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/c.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/c.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/c.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/c.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/f.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/f.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/a.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/a.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/b.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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: variable does not need to be mutable [INFO] [stdout] --> src/bin/b.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/a.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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: variable does not need to be mutable [INFO] [stdout] --> src/bin/a.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/e.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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/e.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: 2 warnings emitted [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `io` [INFO] [stdout] --> src/bin/d.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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: `io` [INFO] [stdout] --> src/bin/e.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_io` [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: variable does not need to be mutable [INFO] [stdout] --> src/bin/e.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut io = IO::new(); [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.28s [INFO] running `Command { std: "docker" "inspect" "21383433fcc2020f2dd7d456f214c5176f49db0be70ae23e49a65e3ca45d7b15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21383433fcc2020f2dd7d456f214c5176f49db0be70ae23e49a65e3ca45d7b15", kill_on_drop: false }` [INFO] [stdout] 21383433fcc2020f2dd7d456f214c5176f49db0be70ae23e49a65e3ca45d7b15