[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] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46abde60a219d838c59cfbc454b0a2b1abed6b5e
[INFO] checking RheoTommy/at_coder against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RheoTommy/at_coder on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "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-1/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" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded whiteread v0.5.0
[INFO] [stderr]   Downloaded cargo-snippet v0.6.5
[INFO] [stderr]   Downloaded bitset-fixed v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e477b12b2576571afa81b6488d0a1818664eb36d87f06cead64d65b738199987
[INFO] running `Command { std: "docker" "start" "-a" "e477b12b2576571afa81b6488d0a1818664eb36d87f06cead64d65b738199987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e477b12b2576571afa81b6488d0a1818664eb36d87f06cead64d65b738199987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e477b12b2576571afa81b6488d0a1818664eb36d87f06cead64d65b738199987", kill_on_drop: false }`
[INFO] [stdout] e477b12b2576571afa81b6488d0a1818664eb36d87f06cead64d65b738199987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52449fe295c76b4511d880b473d5a67c43084a29ea0a94518eec9017dc7a629c
[INFO] running `Command { std: "docker" "start" "-a" "52449fe295c76b4511d880b473d5a67c43084a29ea0a94518eec9017dc7a629c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking bitset-fixed v0.1.0
[INFO] [stderr]     Checking whiteread v0.5.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling cargo-snippet v0.6.5
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[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 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 aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[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 regex v1.3.6
[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 alga v0.9.3
[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]     Checking at_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `io`
[INFO] [stdout]   --> src/bin/h.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/h.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/g.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/g.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/h.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/h.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: 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/g.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/g.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 15.11s
[INFO] running `Command { std: "docker" "inspect" "52449fe295c76b4511d880b473d5a67c43084a29ea0a94518eec9017dc7a629c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52449fe295c76b4511d880b473d5a67c43084a29ea0a94518eec9017dc7a629c", kill_on_drop: false }`
[INFO] [stdout] 52449fe295c76b4511d880b473d5a67c43084a29ea0a94518eec9017dc7a629c