[INFO] cloning repository https://github.com/ardRiriy/adry_library
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ardRiriy/adry_library" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardRiriy%2Fadry_library", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardRiriy%2Fadry_library'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed763f210423ca612e1c8de2d950472a175f5866
[INFO] checking ardRiriy/adry_library against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardRiriy%2Fadry_library" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ardRiriy/adry_library
[INFO] finished tweaking git repo https://github.com/ardRiriy/adry_library
[INFO] tweaked toml for git repo https://github.com/ardRiriy/adry_library written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ardRiriy/adry_library on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ardRiriy/adry_library 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio-derive v0.1.9
[INFO] [stderr]   Downloaded ac-library-rs v0.1.1
[INFO] [stderr]   Downloaded proconio v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd
[INFO] running `Command { std: "docker" "start" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking library v0.1.0 (/opt/rustwide/workdir/library)
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ac-library-rs v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stdout] warning: unused import: `crate::utils::chlibs::ChLibs`
[INFO] [stdout]  --> library/src/graph/scc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::utils::chlibs::ChLibs;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> library/src/misc/modint.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{write, Display},
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryInto`
[INFO] [stdout]  --> library/src/utils/integer.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::chlibs::ChLibs`
[INFO] [stdout]  --> library/src/graph/scc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::utils::chlibs::ChLibs;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> library/src/misc/modint.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{write, Display},
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryInto`
[INFO] [stdout]  --> library/src/utils/integer.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     convert::{TryFrom, TryInto},
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking library_checker v0.1.0 (/opt/rustwide/workdir/library-verify-problems/library_checker)
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]    Compiling proconio-derive v0.1.9
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]     Checking aizu_online_judge v0.1.0 (/opt/rustwide/workdir/library-verify-problems/aoj)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.65s
[INFO] running `Command { std: "docker" "inspect" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd", kill_on_drop: false }`
[INFO] [stdout] 2b0a79bacc380f8fcb54cce3b58bc6a29f7a2327225b3b6af0edf68b3dc29cfd
