[INFO] cloning repository https://github.com/sivizius/ferrocene
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sivizius/ferrocene" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivizius%2Fferrocene", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivizius%2Fferrocene'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d78069fa9c9760ae94e3d09033628d4fc9a0042
[INFO] checking sivizius/ferrocene against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsivizius%2Fferrocene" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sivizius/ferrocene
[INFO] finished tweaking git repo https://github.com/sivizius/ferrocene
[INFO] tweaked toml for git repo https://github.com/sivizius/ferrocene written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sivizius/ferrocene on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sivizius/ferrocene 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.0.4
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.1
[INFO] [stderr]   Downloaded libc v0.2.46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6
[INFO] running `Command { std: "docker" "start" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking ferrocene v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/display/mod.rs:239:19
[INFO] [stdout]     |
[INFO] [stdout] 239 |               for mut instance          in                                      &mut frame.listOfInstances
[INFO] [stdout]     |                   ----^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `cutX` is assigned to, but never used
[INFO] [stdout]    --> src/display/mod.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |       let mut cutX:               usize =                                       0;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_cutX` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `cutY` is assigned to, but never used
[INFO] [stdout]    --> src/display/mod.rs:135:11
[INFO] [stdout]     |
[INFO] [stdout] 135 |       let mut cutY:               usize =                                       0;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_cutY` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:190:25
[INFO] [stdout]     |
[INFO] [stdout] 190 |         Frame::Status ( ref frame )     =>
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:198:23
[INFO] [stdout]     |
[INFO] [stdout] 198 |         Frame::Text ( ref frame )       =>
[INFO] [stdout]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:206:25
[INFO] [stdout]     |
[INFO] [stdout] 206 |         Frame::Editor ( ref frame )     =>
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:214:23
[INFO] [stdout]     |
[INFO] [stdout] 214 |         Frame::Pixel( ref frame )       =>
[INFO] [stdout]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:222:22
[INFO] [stdout]     |
[INFO] [stdout] 222 |         Frame::Plot( ref frame )        =>
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cutX` is never read
[INFO] [stdout]    --> src/display/mod.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         cutX                            =                                       -minX as usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cutY` is never read
[INFO] [stdout]    --> src/display/mod.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         cutY                            =                                       -minY as usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/display/mod.rs:239:19
[INFO] [stdout]     |
[INFO] [stdout] 239 |               for mut instance          in                                      &mut frame.listOfInstances
[INFO] [stdout]     |                   ----^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:307:5
[INFO] [stdout]     |
[INFO] [stdout] 307 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]    --> src/display/mod.rs:308:5
[INFO] [stdout]     |
[INFO] [stdout] 308 |     title:                              String,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]    --> src/display/mod.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     title:                              String,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:335:5
[INFO] [stdout]     |
[INFO] [stdout] 335 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `cutX` is assigned to, but never used
[INFO] [stdout]    --> src/display/mod.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |       let mut cutX:               usize =                                       0;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_cutX` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `cutY` is assigned to, but never used
[INFO] [stdout]    --> src/display/mod.rs:135:11
[INFO] [stdout]     |
[INFO] [stdout] 135 |       let mut cutY:               usize =                                       0;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_cutY` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:190:25
[INFO] [stdout]     |
[INFO] [stdout] 190 |         Frame::Status ( ref frame )     =>
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:198:23
[INFO] [stdout]     |
[INFO] [stdout] 198 |         Frame::Text ( ref frame )       =>
[INFO] [stdout]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:206:25
[INFO] [stdout]     |
[INFO] [stdout] 206 |         Frame::Editor ( ref frame )     =>
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:214:23
[INFO] [stdout]     |
[INFO] [stdout] 214 |         Frame::Pixel( ref frame )       =>
[INFO] [stdout]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]    --> src/display/mod.rs:222:22
[INFO] [stdout]     |
[INFO] [stdout] 222 |         Frame::Plot( ref frame )        =>
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cutX` is never read
[INFO] [stdout]    --> src/display/mod.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         cutX                            =                                       -minX as usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cutY` is never read
[INFO] [stdout]    --> src/display/mod.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         cutY                            =                                       -minY as usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:307:5
[INFO] [stdout]     |
[INFO] [stdout] 307 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]    --> src/display/mod.rs:308:5
[INFO] [stdout]     |
[INFO] [stdout] 308 |     title:                              String,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]    --> src/display/mod.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     title:                              String,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `events`
[INFO] [stdout]    --> src/display/mod.rs:335:5
[INFO] [stdout]     |
[INFO] [stdout] 335 |     events:                             EventSender,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `libc`
[INFO] [stderr]  --> Cargo.toml:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | libc = "0.2"
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `libc`
[INFO] [stderr] warning: unused dependency `unicode-segmentation`
[INFO] [stderr]  --> Cargo.toml:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | unicode-segmentation = "1.1.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `unicode-segmentation`
[INFO] [stderr] warning: `ferrocene` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6", kill_on_drop: false }`
[INFO] [stdout] d8e7736467fc183f72a572a704fd3691e63a929cd1de48c848bc34f0df4392a6
