[INFO] cloning repository https://github.com/terakun/quoridor_judge
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terakun/quoridor_judge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fquoridor_judge"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fquoridor_judge'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8018ec5c8825a77af2e39e2833e750e4869cb9b7
[INFO] checking terakun/quoridor_judge against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fquoridor_judge" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/terakun/quoridor_judge on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/terakun/quoridor_judge
[INFO] finished tweaking git repo https://github.com/terakun/quoridor_judge
[INFO] tweaked toml for git repo https://github.com/terakun/quoridor_judge written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/terakun/quoridor_judge already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ccc335d8d969b5fc0109bae9a619cb7d79f38bfcb3306b71aad1a02fe203153b
[INFO] running `"docker" "start" "-a" "ccc335d8d969b5fc0109bae9a619cb7d79f38bfcb3306b71aad1a02fe203153b"`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking ws v0.7.9
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking quoridor_judge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/websocket.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{BufRead, BufReader};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CloseCode`, `Factory`, `Handler`, `Message`
[INFO] [stderr]   --> src/main.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | use ws::{CloseCode, Factory, Handler, Message, Sender};
[INFO] [stderr]    |          ^^^^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/websocket.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{BufRead, BufReader};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CloseCode`, `Factory`, `Handler`, `Message`
[INFO] [stderr]   --> src/main.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | use ws::{CloseCode, Factory, Handler, Message, Sender};
[INFO] [stderr]    |          ^^^^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `out`
[INFO] [stderr]   --> src/websocket.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     out: Sender,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/main.rs:476:5
[INFO] [stderr]     |
[INFO] [stderr] 476 |     name: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `out`
[INFO] [stderr]   --> src/websocket.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     out: Sender,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/main.rs:476:5
[INFO] [stderr]     |
[INFO] [stderr] 476 |     name: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.44s
[INFO] running `"docker" "inspect" "ccc335d8d969b5fc0109bae9a619cb7d79f38bfcb3306b71aad1a02fe203153b"`
[INFO] running `"docker" "rm" "-f" "ccc335d8d969b5fc0109bae9a619cb7d79f38bfcb3306b71aad1a02fe203153b"`
[INFO] [stdout] ccc335d8d969b5fc0109bae9a619cb7d79f38bfcb3306b71aad1a02fe203153b