[INFO] cloning repository https://github.com/BenjaminRayner/Profiling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenjaminRayner/Profiling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjaminRayner%2FProfiling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjaminRayner%2FProfiling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e772842debb714357cd681813c2803b10d8b4006
[INFO] checking BenjaminRayner/Profiling against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjaminRayner%2FProfiling" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BenjaminRayner/Profiling
[INFO] finished tweaking git repo https://github.com/BenjaminRayner/Profiling
[INFO] tweaked toml for git repo https://github.com/BenjaminRayner/Profiling written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenjaminRayner/Profiling on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BenjaminRayner/Profiling 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opaque-debug v0.3.0
[INFO] [stderr]   Downloaded version_check v0.9.2
[INFO] [stderr]   Downloaded generic-array v0.14.4
[INFO] [stderr]   Downloaded hex v0.4.2
[INFO] [stderr]   Downloaded digest v0.9.0
[INFO] [stderr]   Downloaded block-buffer v0.9.0
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded cpuid-bool v0.1.2
[INFO] [stderr]   Downloaded typenum v1.12.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.3
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded sha2 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db70553fad67bb71629da03026ab9a6b1c35034da792ca10e79612537b648c3e
[INFO] running `Command { std: "docker" "start" "-a" "db70553fad67bb71629da03026ab9a6b1c35034da792ca10e79612537b648c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db70553fad67bb71629da03026ab9a6b1c35034da792ca10e79612537b648c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db70553fad67bb71629da03026ab9a6b1c35034da792ca10e79612537b648c3e", kill_on_drop: false }`
[INFO] [stdout] db70553fad67bb71629da03026ab9a6b1c35034da792ca10e79612537b648c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5326752254df9e015e2c3436fb0df915a00771fb3bb7b97357e0a3b60741d2a
[INFO] running `Command { std: "docker" "start" "-a" "c5326752254df9e015e2c3436fb0df915a00771fb3bb7b97357e0a3b60741d2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking lab4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:131:54
[INFO] [stdout]     |
[INFO] [stdout] 131 |         .flat_map(|p| customers.lines().map(move |c| (format!("{} for {}", p.to_owned(), c.to_owned()))))
[INFO] [stdout]     |                                                      ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 131 -         .flat_map(|p| customers.lines().map(move |c| (format!("{} for {}", p.to_owned(), c.to_owned()))))
[INFO] [stdout] 131 +         .flat_map(|p| customers.lines().map(move |c| format!("{} for {}", p.to_owned(), c.to_owned())))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:131:54
[INFO] [stdout]     |
[INFO] [stdout] 131 |         .flat_map(|p| customers.lines().map(move |c| (format!("{} for {}", p.to_owned(), c.to_owned()))))
[INFO] [stdout]     |                                                      ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 131 -         .flat_map(|p| customers.lines().map(move |c| (format!("{} for {}", p.to_owned(), c.to_owned()))))
[INFO] [stdout] 131 +         .flat_map(|p| customers.lines().map(move |c| format!("{} for {}", p.to_owned(), c.to_owned())))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.65s
[INFO] running `Command { std: "docker" "inspect" "c5326752254df9e015e2c3436fb0df915a00771fb3bb7b97357e0a3b60741d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5326752254df9e015e2c3436fb0df915a00771fb3bb7b97357e0a3b60741d2a", kill_on_drop: false }`
[INFO] [stdout] c5326752254df9e015e2c3436fb0df915a00771fb3bb7b97357e0a3b60741d2a