[INFO] cloning repository https://github.com/Id405/pppp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Id405/pppp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FId405%2Fpppp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FId405%2Fpppp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85e52f12edcdd1f681dd527561e5aeccecb9e02c
[INFO] checking Id405/pppp against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FId405%2Fpppp" "/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/Id405/pppp on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Id405/pppp
[INFO] finished tweaking git repo https://github.com/Id405/pppp
[INFO] tweaked toml for git repo https://github.com/Id405/pppp written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Id405/pppp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3f04cb12b629ffe88e0288b60ad98dbc33dcfb921772322112b7c8dfef91464
[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" "f3f04cb12b629ffe88e0288b60ad98dbc33dcfb921772322112b7c8dfef91464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3f04cb12b629ffe88e0288b60ad98dbc33dcfb921772322112b7c8dfef91464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3f04cb12b629ffe88e0288b60ad98dbc33dcfb921772322112b7c8dfef91464", kill_on_drop: false }`
[INFO] [stdout] f3f04cb12b629ffe88e0288b60ad98dbc33dcfb921772322112b7c8dfef91464
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea8c6522a39688a8222a3b3f55b4e36d4ec16d346b6ffcc9ab6546f03e99d73c
[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" "ea8c6522a39688a8222a3b3f55b4e36d4ec16d346b6ffcc9ab6546f03e99d73c", kill_on_drop: false }`
[INFO] [stderr]     Checking pppp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `background_start`
[INFO] [stdout]   --> src/prompt.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let (string, background_start, background_end) = module.render().unwrap_or(("".to_string(), 0, 0));
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `background_end`
[INFO] [stdout]   --> src/prompt.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let (string, background_start, background_end) = module.render().unwrap_or(("".to_string(), 0, 0));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style_start`
[INFO] [stdout]   --> src/prompt.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut style_start = StyleConfig::default();
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_style_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prompt.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut style_start = StyleConfig::default();
[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: unused variable: `background_start`
[INFO] [stdout]   --> src/prompt.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let (string, background_start, background_end) = module.render().unwrap_or(("".to_string(), 0, 0));
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `background_end`
[INFO] [stdout]   --> src/prompt.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let (string, background_start, background_end) = module.render().unwrap_or(("".to_string(), 0, 0));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style_start`
[INFO] [stdout]   --> src/prompt.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut style_start = StyleConfig::default();
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_style_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prompt.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut style_start = StyleConfig::default();
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "ea8c6522a39688a8222a3b3f55b4e36d4ec16d346b6ffcc9ab6546f03e99d73c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea8c6522a39688a8222a3b3f55b4e36d4ec16d346b6ffcc9ab6546f03e99d73c", kill_on_drop: false }`
[INFO] [stdout] ea8c6522a39688a8222a3b3f55b4e36d4ec16d346b6ffcc9ab6546f03e99d73c