[INFO] updating cached repository https://github.com/swlody/again
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90dd5b5f1a0857413a214ba5081a47eefc0322c3
[INFO] checking swlody/again against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswlody%2Fagain" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swlody/again on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/swlody/again
[INFO] finished tweaking git repo https://github.com/swlody/again
[INFO] tweaked toml for git repo https://github.com/swlody/again written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/swlody/again already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "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" "+13f916f63bc6575d5ff1f989237dfabe88981368" "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] 7dc289cad5229f54618cd201ec97496b1bd365e9e6d7ec4551dced516d41109f
[INFO] running `"docker" "start" "-a" "7dc289cad5229f54618cd201ec97496b1bd365e9e6d7ec4551dced516d41109f"`
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking again v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayBuffer`
[INFO] [stderr]   --> src/game.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct DisplayBuffer {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step_render`
[INFO] [stderr]   --> src/game.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn step_render(&mut self, step_by: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SoundBuffer`
[INFO] [stderr]   --> src/game.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct SoundBuffer {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `render_sound`
[INFO] [stderr]   --> src/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn render_sound(&mut self, tone_hz: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `update_and_render`
[INFO] [stderr]   --> src/game.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn update_and_render(
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayBuffer`
[INFO] [stderr]   --> src/game.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct DisplayBuffer {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step_render`
[INFO] [stderr]   --> src/game.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn step_render(&mut self, step_by: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SoundBuffer`
[INFO] [stderr]   --> src/game.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct SoundBuffer {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `render_sound`
[INFO] [stderr]   --> src/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn render_sound(&mut self, tone_hz: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `update_and_render`
[INFO] [stderr]   --> src/game.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn update_and_render(
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `"docker" "inspect" "7dc289cad5229f54618cd201ec97496b1bd365e9e6d7ec4551dced516d41109f"`
[INFO] running `"docker" "rm" "-f" "7dc289cad5229f54618cd201ec97496b1bd365e9e6d7ec4551dced516d41109f"`
[INFO] [stdout] 7dc289cad5229f54618cd201ec97496b1bd365e9e6d7ec4551dced516d41109f