[INFO] cloning repository https://github.com/mbuffa/hellorust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbuffa/hellorust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbuffa%2Fhellorust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbuffa%2Fhellorust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b1d685e7018b870560ab5cd67685e4af9b6db80
[INFO] checking mbuffa/hellorust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbuffa%2Fhellorust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mbuffa/hellorust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mbuffa/hellorust
[INFO] finished tweaking git repo https://github.com/mbuffa/hellorust
[INFO] tweaked toml for git repo https://github.com/mbuffa/hellorust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mbuffa/hellorust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a9fe00d7ae27dc99f8ba00fc05b87d075d0a4f676a17747c11ced00863f3584
[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" "4a9fe00d7ae27dc99f8ba00fc05b87d075d0a4f676a17747c11ced00863f3584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a9fe00d7ae27dc99f8ba00fc05b87d075d0a4f676a17747c11ced00863f3584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9fe00d7ae27dc99f8ba00fc05b87d075d0a4f676a17747c11ced00863f3584", kill_on_drop: false }`
[INFO] [stdout] 4a9fe00d7ae27dc99f8ba00fc05b87d075d0a4f676a17747c11ced00863f3584
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d6b5c224e4917030a704b8c913263510797997af2f8fc2ee05220f5c197060a
[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" "7d6b5c224e4917030a704b8c913263510797997af2f8fc2ee05220f5c197060a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking hellorust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/initializing.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn on_enter(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/initializing.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn on_enter(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/initializing.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn on_leave(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/initializing.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn on_leave(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/playing.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn on_enter(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/playing.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn on_enter(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/playing.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn on_leave(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/app/states/playing.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn on_leave(ctx: &mut AppContext) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current`
[INFO] [stdout]  --> src/app/context.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   current: AppState,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current`
[INFO] [stdout]  --> src/app/context.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   current: AppState,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "7d6b5c224e4917030a704b8c913263510797997af2f8fc2ee05220f5c197060a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6b5c224e4917030a704b8c913263510797997af2f8fc2ee05220f5c197060a", kill_on_drop: false }`
[INFO] [stdout] 7d6b5c224e4917030a704b8c913263510797997af2f8fc2ee05220f5c197060a