[INFO] cloning repository https://github.com/menzel/nopeak_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/menzel/nopeak_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenzel%2Fnopeak_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenzel%2Fnopeak_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14de1e475ae5c59d8f20e148b5c6c7ccbdfacbe5
[INFO] checking menzel/nopeak_rust against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenzel%2Fnopeak_rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/menzel/nopeak_rust on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/menzel/nopeak_rust
[INFO] finished tweaking git repo https://github.com/menzel/nopeak_rust
[INFO] tweaked toml for git repo https://github.com/menzel/nopeak_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/menzel/nopeak_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d7ab70df132072ec5d15dd5964b63a383ab2953d3efdbdad045c902bf3fcd56
[INFO] running `Command { std: "docker" "start" "-a" "4d7ab70df132072ec5d15dd5964b63a383ab2953d3efdbdad045c902bf3fcd56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d7ab70df132072ec5d15dd5964b63a383ab2953d3efdbdad045c902bf3fcd56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7ab70df132072ec5d15dd5964b63a383ab2953d3efdbdad045c902bf3fcd56", kill_on_drop: false }`
[INFO] [stdout] 4d7ab70df132072ec5d15dd5964b63a383ab2953d3efdbdad045c902bf3fcd56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff66a2d827201f6ebc72ea092425bf626b84bdfbb31bb8c0aa1b02264241492c
[INFO] running `Command { std: "docker" "start" "-a" "ff66a2d827201f6ebc72ea092425bf626b84bdfbb31bb8c0aa1b02264241492c", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking rust_profile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `it`
[INFO] [stdout]    --> src/main.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 256 |             for (it,read) in tmp.iter().enumerate() {
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_it`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `it`
[INFO] [stdout]    --> src/main.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 256 |             for (it,read) in tmp.iter().enumerate() {
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_it`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut tmp : (HashMap<String, Vec<i32>>, HashMap<String, Vec<i32>>);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut tmp : (HashMap<String, Vec<i32>>, HashMap<String, Vec<i32>>);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[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 [optimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "ff66a2d827201f6ebc72ea092425bf626b84bdfbb31bb8c0aa1b02264241492c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff66a2d827201f6ebc72ea092425bf626b84bdfbb31bb8c0aa1b02264241492c", kill_on_drop: false }`
[INFO] [stdout] ff66a2d827201f6ebc72ea092425bf626b84bdfbb31bb8c0aa1b02264241492c