[INFO] cloning repository https://github.com/rsalmei/ballbounce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rsalmei/ballbounce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsalmei%2Fballbounce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsalmei%2Fballbounce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c232217c7d11bb3b867936f6b21d5e8550af9ea
[INFO] checking rsalmei/ballbounce against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsalmei%2Fballbounce" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rsalmei/ballbounce on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rsalmei/ballbounce
[INFO] finished tweaking git repo https://github.com/rsalmei/ballbounce
[INFO] tweaked toml for git repo https://github.com/rsalmei/ballbounce written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rsalmei/ballbounce 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 021590f846afa092aec4ba1a324b3535951ec92dd9435336adade240f8baf0b4
[INFO] running `Command { std: "docker" "start" "-a" "021590f846afa092aec4ba1a324b3535951ec92dd9435336adade240f8baf0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "021590f846afa092aec4ba1a324b3535951ec92dd9435336adade240f8baf0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "021590f846afa092aec4ba1a324b3535951ec92dd9435336adade240f8baf0b4", kill_on_drop: false }`
[INFO] [stdout] 021590f846afa092aec4ba1a324b3535951ec92dd9435336adade240f8baf0b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6161cb02f7bf7dcd4b38c77da4810a3b5917d461db922200cf4359c9f213818f
[INFO] running `Command { std: "docker" "start" "-a" "6161cb02f7bf7dcd4b38c77da4810a3b5917d461db922200cf4359c9f213818f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ballbounce v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> src/ball.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     const REPRS: &[char] = &['◉', '●', '❖', '▲', '✢', '✦', '★', '☻', '❤', '♠', '♣', '♦'];
[INFO] [stdout]    |                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]    = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 88 |     const REPRS: &'static [char] = &['◉', '●', '❖', '▲', '✢', '✦', '★', '☻', '❤', '♠', '♣', '♦'];
[INFO] [stdout]    |                   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> src/ball.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     const REPRS: &[char] = &['◉', '●', '❖', '▲', '✢', '✦', '★', '☻', '❤', '♠', '♣', '♦'];
[INFO] [stdout]    |                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]    = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 88 |     const REPRS: &'static [char] = &['◉', '●', '❖', '▲', '✢', '✦', '★', '☻', '❤', '♠', '♣', '♦'];
[INFO] [stdout]    |                   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `action` is never used
[INFO] [stdout]  --> src/component.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Component {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 6 |     fn action(&mut self, _key: Key) {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `action` is never used
[INFO] [stdout]  --> src/component.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Component {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 6 |     fn action(&mut self, _key: Key) {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "6161cb02f7bf7dcd4b38c77da4810a3b5917d461db922200cf4359c9f213818f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6161cb02f7bf7dcd4b38c77da4810a3b5917d461db922200cf4359c9f213818f", kill_on_drop: false }`
[INFO] [stdout] 6161cb02f7bf7dcd4b38c77da4810a3b5917d461db922200cf4359c9f213818f