[INFO] fetching crate wrecked 0.1.20...
[INFO] checking wrecked-0.1.20 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate wrecked 0.1.20 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wrecked 0.1.20 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wrecked 0.1.20
[INFO] finished tweaking crates.io crate wrecked 0.1.20
[INFO] tweaked toml for crates.io crate wrecked 0.1.20 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59bf0590bb19650fd3a802d6960781bc928f613155083dce27e25ee751aa4bfa
[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" "59bf0590bb19650fd3a802d6960781bc928f613155083dce27e25ee751aa4bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59bf0590bb19650fd3a802d6960781bc928f613155083dce27e25ee751aa4bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59bf0590bb19650fd3a802d6960781bc928f613155083dce27e25ee751aa4bfa", kill_on_drop: false }`
[INFO] [stdout] 59bf0590bb19650fd3a802d6960781bc928f613155083dce27e25ee751aa4bfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4b7cd76d931204c307c7db7cdd2d3eb9b09e16922f2e4f1a5f1d97ff96ba889
[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" "d4b7cd76d931204c307c7db7cdd2d3eb9b09e16922f2e4f1a5f1d97ff96ba889", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking wrecked v0.1.20 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_plain`
[INFO] [stdout]    --> src/lib.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn is_plain(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_plain`
[INFO] [stdout]     --> src/lib.rs:2636:12
[INFO] [stdout]      |
[INFO] [stdout] 2636 |     pub fn is_plain(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_bold`
[INFO] [stdout]     --> src/lib.rs:2640:12
[INFO] [stdout]      |
[INFO] [stdout] 2640 |     pub fn is_bold(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_underlined`
[INFO] [stdout]     --> src/lib.rs:2644:12
[INFO] [stdout]      |
[INFO] [stdout] 2644 |     pub fn is_underlined(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_inverted`
[INFO] [stdout]     --> src/lib.rs:2648:12
[INFO] [stdout]      |
[INFO] [stdout] 2648 |     pub fn is_inverted(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_italicized`
[INFO] [stdout]     --> src/lib.rs:2652:12
[INFO] [stdout]      |
[INFO] [stdout] 2652 |     pub fn is_italicized(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_striken`
[INFO] [stdout]     --> src/lib.rs:2656:12
[INFO] [stdout]      |
[INFO] [stdout] 2656 |     pub fn is_striken(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_blinking`
[INFO] [stdout]     --> src/lib.rs:2660:12
[INFO] [stdout]      |
[INFO] [stdout] 2660 |     pub fn is_blinking(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_child`
[INFO] [stdout]     --> src/lib.rs:2664:12
[INFO] [stdout]      |
[INFO] [stdout] 2664 |     pub fn has_child(&self, child_id: usize) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tests.rs:705:5
[INFO] [stdout]     |
[INFO] [stdout] 705 |     rectmanager.set_bg_color(rect_id, RectColor::BLUE);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "d4b7cd76d931204c307c7db7cdd2d3eb9b09e16922f2e4f1a5f1d97ff96ba889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b7cd76d931204c307c7db7cdd2d3eb9b09e16922f2e4f1a5f1d97ff96ba889", kill_on_drop: false }`
[INFO] [stdout] d4b7cd76d931204c307c7db7cdd2d3eb9b09e16922f2e4f1a5f1d97ff96ba889