[INFO] cloning repository https://github.com/akshaydewan/conc-spike
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akshaydewan/conc-spike" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshaydewan%2Fconc-spike"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshaydewan%2Fconc-spike'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 17c6f26811a6559b20042cde23bd9c7d3a1b3a1c
[INFO] checking akshaydewan/conc-spike against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshaydewan%2Fconc-spike" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akshaydewan/conc-spike on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/akshaydewan/conc-spike
[INFO] finished tweaking git repo https://github.com/akshaydewan/conc-spike
[INFO] tweaked toml for git repo https://github.com/akshaydewan/conc-spike written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/akshaydewan/conc-spike already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8a8a554bed6175d9d1ebf068325955bd486e3e13330de48f6c699e1b39ad46a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8a8a554bed6175d9d1ebf068325955bd486e3e13330de48f6c699e1b39ad46a7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.2
[INFO] [stderr]     Checking dashmap v3.7.0
[INFO] [stderr]     Checking conc-spike v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 | const AGENTS: Range<i32> = (0..20_000_000);
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 | const AGENTS: Range<i32> = (0..20_000_000);
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `"docker" "inspect" "8a8a554bed6175d9d1ebf068325955bd486e3e13330de48f6c699e1b39ad46a7"`
[INFO] running `"docker" "rm" "-f" "8a8a554bed6175d9d1ebf068325955bd486e3e13330de48f6c699e1b39ad46a7"`
[INFO] [stdout] 8a8a554bed6175d9d1ebf068325955bd486e3e13330de48f6c699e1b39ad46a7