[INFO] fetching crate utile_cli 0.3.1...
[INFO] checking utile_cli-0.3.1 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate utile_cli 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate utile_cli 0.3.1 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate utile_cli 0.3.1
[INFO] finished tweaking crates.io crate utile_cli 0.3.1
[INFO] tweaked toml for crates.io crate utile_cli 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc1a81775d55d616483f7fdac832c7f185f59c35b571a21b48493f7cf8dd7e6f
[INFO] running `"docker" "start" "-a" "cc1a81775d55d616483f7fdac832c7f185f59c35b571a21b48493f7cf8dd7e6f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking utile_cli v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/cli.rs:638:14
[INFO] [stderr]     |
[INFO] [stderr] 638 |           if (y < layers.len() - 1) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/cli.rs:643:14
[INFO] [stderr]     |
[INFO] [stderr] 643 |           if (y > 0) {
[INFO] [stderr]     |              ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/cli.rs:638:14
[INFO] [stderr]     |
[INFO] [stderr] 638 |           if (y < layers.len() - 1) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/cli.rs:643:14
[INFO] [stderr]     |
[INFO] [stderr] 643 |           if (y > 0) {
[INFO] [stderr]     |              ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cli.rs:493:11
[INFO] [stderr]     |
[INFO] [stderr] 493 |       _ | None => ()
[INFO] [stderr]     |           ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/cli.rs:492:23
[INFO] [stderr]     |
[INFO] [stderr] 492 |       Some(Key::Alpha(c)) => { self.raw_delete_prev(); },
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/cli.rs:512:23
[INFO] [stderr]     |
[INFO] [stderr] 512 |           if let Some(i) = r.get_content().pop() {
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/cli.rs:543:23
[INFO] [stderr]     |
[INFO] [stderr] 543 |           if let Some(i) = r.get_content().pop() {
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l2d`
[INFO] [stderr]   --> src/lib.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let l2d = t.add_layer2d(l2d);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_l2d`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut behindl2d = Layer2D::new(0, 0, 4, 4, behindl);
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     let mut frontl2d = Layer2D::new(0, 0, 2, 2, frontl);
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cli.rs:493:11
[INFO] [stderr]     |
[INFO] [stderr] 493 |       _ | None => ()
[INFO] [stderr]     |           ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/cli.rs:492:23
[INFO] [stderr]     |
[INFO] [stderr] 492 |       Some(Key::Alpha(c)) => { self.raw_delete_prev(); },
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/cli.rs:512:23
[INFO] [stderr]     |
[INFO] [stderr] 512 |           if let Some(i) = r.get_content().pop() {
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/cli.rs:543:23
[INFO] [stderr]     |
[INFO] [stderr] 543 |           if let Some(i) = r.get_content().pop() {
[INFO] [stderr]     |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]    --> src/cli.rs:201:3
[INFO] [stderr]     |
[INFO] [stderr] 201 |   fn pop(&mut self) -> Option<Layer2D> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]    --> src/cli.rs:201:3
[INFO] [stderr]     |
[INFO] [stderr] 201 |   fn pop(&mut self) -> Option<Layer2D> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `"docker" "inspect" "cc1a81775d55d616483f7fdac832c7f185f59c35b571a21b48493f7cf8dd7e6f"`
[INFO] running `"docker" "rm" "-f" "cc1a81775d55d616483f7fdac832c7f185f59c35b571a21b48493f7cf8dd7e6f"`
[INFO] [stdout] cc1a81775d55d616483f7fdac832c7f185f59c35b571a21b48493f7cf8dd7e6f