[INFO] updating cached repository https://github.com/KKatsuaki/Mersenne-Twister-in-Rust
[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] 76ed608f4706b1c41233b6326e700f87e0c515ad
[INFO] checking KKatsuaki/Mersenne-Twister-in-Rust against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKKatsuaki%2FMersenne-Twister-in-Rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KKatsuaki/Mersenne-Twister-in-Rust on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KKatsuaki/Mersenne-Twister-in-Rust
[INFO] finished tweaking git repo https://github.com/KKatsuaki/Mersenne-Twister-in-Rust
[INFO] tweaked toml for git repo https://github.com/KKatsuaki/Mersenne-Twister-in-Rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/KKatsuaki/Mersenne-Twister-in-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 891ccb3c77836bc696d1fc592020d0632cbd9b7cf033bd5ca02b9ed966f0f9c2
[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" "891ccb3c77836bc696d1fc592020d0632cbd9b7cf033bd5ca02b9ed966f0f9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891ccb3c77836bc696d1fc592020d0632cbd9b7cf033bd5ca02b9ed966f0f9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891ccb3c77836bc696d1fc592020d0632cbd9b7cf033bd5ca02b9ed966f0f9c2", kill_on_drop: false }`
[INFO] [stdout] 891ccb3c77836bc696d1fc592020d0632cbd9b7cf033bd5ca02b9ed966f0f9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25280578be7fe4b7afee6741b575f47c3e2e193168328806a2959ff71152dd89
[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" "25280578be7fe4b7afee6741b575f47c3e2e193168328806a2959ff71152dd89", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking mersenne_wtister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `genrand_u64`
[INFO] [stdout]    --> src/mt19937.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn genrand_u64(&mut self) -> u64{
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `genrand_u128`
[INFO] [stdout]    --> src/mt19937.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn genrand_u128(&mut self) -> u128{
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `genrand_u64`
[INFO] [stdout]    --> src/mt19937.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn genrand_u64(&mut self) -> u64{
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `genrand_u128`
[INFO] [stdout]    --> src/mt19937.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn genrand_u128(&mut self) -> u128{
[INFO] [stdout]     |            ^^^^^^^^^^^^
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "25280578be7fe4b7afee6741b575f47c3e2e193168328806a2959ff71152dd89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25280578be7fe4b7afee6741b575f47c3e2e193168328806a2959ff71152dd89", kill_on_drop: false }`
[INFO] [stdout] 25280578be7fe4b7afee6741b575f47c3e2e193168328806a2959ff71152dd89