[INFO] cloning repository https://github.com/goosbo/mersenne_twister_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goosbo/mersenne_twister_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoosbo%2Fmersenne_twister_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoosbo%2Fmersenne_twister_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5acb3b7dc3fbd22ad24a7e4424e3895a7e066431
[INFO] checking goosbo/mersenne_twister_rust against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoosbo%2Fmersenne_twister_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/goosbo/mersenne_twister_rust
[INFO] finished tweaking git repo https://github.com/goosbo/mersenne_twister_rust
[INFO] tweaked toml for git repo https://github.com/goosbo/mersenne_twister_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/goosbo/mersenne_twister_rust on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/goosbo/mersenne_twister_rust 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe448c1426319b263bfe2a24cda46ca341062a756e2730c19f1ac74f3cbebc33
[INFO] running `Command { std: "docker" "start" "-a" "fe448c1426319b263bfe2a24cda46ca341062a756e2730c19f1ac74f3cbebc33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe448c1426319b263bfe2a24cda46ca341062a756e2730c19f1ac74f3cbebc33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe448c1426319b263bfe2a24cda46ca341062a756e2730c19f1ac74f3cbebc33", kill_on_drop: false }`
[INFO] [stdout] fe448c1426319b263bfe2a24cda46ca341062a756e2730c19f1ac74f3cbebc33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cce9e3e49176598795dacca3e8c96b04a31fdb4a44976d6b2b6ea25ee9dc6f1
[INFO] running `Command { std: "docker" "start" "-a" "0cce9e3e49176598795dacca3e8c96b04a31fdb4a44976d6b2b6ea25ee9dc6f1", kill_on_drop: false }`
[INFO] [stderr]     Checking mersenne_twister_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constants `R` and `L` are never used
[INFO] [stdout]   --> src/main.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 1  | trait Mt {
[INFO] [stdout]    |       -- associated constants in this trait
[INFO] [stdout] ...
[INFO] [stdout] 6  |     const R:u32 = 31;
[INFO] [stdout]    |           ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     const L:u32 = 18;
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `R` and `L` are never used
[INFO] [stdout]   --> src/main.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 1  | trait Mt {
[INFO] [stdout]    |       -- associated constants in this trait
[INFO] [stdout] ...
[INFO] [stdout] 6  |     const R:u32 = 31;
[INFO] [stdout]    |           ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     const L:u32 = 18;
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "0cce9e3e49176598795dacca3e8c96b04a31fdb4a44976d6b2b6ea25ee9dc6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cce9e3e49176598795dacca3e8c96b04a31fdb4a44976d6b2b6ea25ee9dc6f1", kill_on_drop: false }`
[INFO] [stdout] 0cce9e3e49176598795dacca3e8c96b04a31fdb4a44976d6b2b6ea25ee9dc6f1