[INFO] cloning repository https://github.com/dmorigin/simpermut-rc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmorigin/simpermut-rc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53b1ad874083dd64bacb5451c43482f30decefd0
[INFO] checking dmorigin/simpermut-rc against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmorigin/simpermut-rc on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmorigin/simpermut-rc
[INFO] finished tweaking git repo https://github.com/dmorigin/simpermut-rc
[INFO] tweaked toml for git repo https://github.com/dmorigin/simpermut-rc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dmorigin/simpermut-rc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 334c52664e1a27d1d2287863d9724cca6b89a2a38b654e50b871b1298eb17bef
[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" "334c52664e1a27d1d2287863d9724cca6b89a2a38b654e50b871b1298eb17bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "334c52664e1a27d1d2287863d9724cca6b89a2a38b654e50b871b1298eb17bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "334c52664e1a27d1d2287863d9724cca6b89a2a38b654e50b871b1298eb17bef", kill_on_drop: false }`
[INFO] [stdout] 334c52664e1a27d1d2287863d9724cca6b89a2a38b654e50b871b1298eb17bef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 448b6ce93d5bff734f2e0d9cc5e41423eecbd3f6d09df8e9ebeb6e100a3229c8
[INFO] running `Command { std: "docker" "start" "-a" "448b6ce93d5bff734f2e0d9cc5e41423eecbd3f6d09df8e9ebeb6e100a3229c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking sim_permut v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/simcraft/mod.rs:156:69
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn permutation(&mut self, iterations: (u64, u64)) -> Result<(u64), Error> {
[INFO] [stdout]     |                                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/simcraft/mod.rs:156:69
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn permutation(&mut self, iterations: (u64, u64)) -> Result<(u64), Error> {
[INFO] [stdout]     |                                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.84s
[INFO] running `Command { std: "docker" "inspect" "448b6ce93d5bff734f2e0d9cc5e41423eecbd3f6d09df8e9ebeb6e100a3229c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448b6ce93d5bff734f2e0d9cc5e41423eecbd3f6d09df8e9ebeb6e100a3229c8", kill_on_drop: false }`
[INFO] [stdout] 448b6ce93d5bff734f2e0d9cc5e41423eecbd3f6d09df8e9ebeb6e100a3229c8