[INFO] cloning repository https://github.com/Whatisthisname/2-to-the-eleventh-power
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Whatisthisname/2-to-the-eleventh-power" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhatisthisname%2F2-to-the-eleventh-power", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhatisthisname%2F2-to-the-eleventh-power'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8cab0583968ebe75b55dc9e58bb58d8fbf522601
[INFO] checking Whatisthisname/2-to-the-eleventh-power against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhatisthisname%2F2-to-the-eleventh-power" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Whatisthisname/2-to-the-eleventh-power 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/Whatisthisname/2-to-the-eleventh-power
[INFO] finished tweaking git repo https://github.com/Whatisthisname/2-to-the-eleventh-power
[INFO] tweaked toml for git repo https://github.com/Whatisthisname/2-to-the-eleventh-power written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Whatisthisname/2-to-the-eleventh-power 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5496c11aa6bb067a085803db9f5244dcc7b69fb880c6f0b6887c66978fb1878f
[INFO] running `Command { std: "docker" "start" "-a" "5496c11aa6bb067a085803db9f5244dcc7b69fb880c6f0b6887c66978fb1878f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5496c11aa6bb067a085803db9f5244dcc7b69fb880c6f0b6887c66978fb1878f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5496c11aa6bb067a085803db9f5244dcc7b69fb880c6f0b6887c66978fb1878f", kill_on_drop: false }`
[INFO] [stdout] 5496c11aa6bb067a085803db9f5244dcc7b69fb880c6f0b6887c66978fb1878f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 85d896372f787440ed803a3d5f3e80f1ad124eb2bdc46c633e2d2e8c083317ec
[INFO] running `Command { std: "docker" "start" "-a" "85d896372f787440ed803a3d5f3e80f1ad124eb2bdc46c633e2d2e8c083317ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking termion v1.5.6
[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 rust_2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cursor::DetectCursorPos`
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use termion::{event::Key, raw::RawTerminal, cursor::DetectCursorPos};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cursor::DetectCursorPos`
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use termion::{event::Key, raw::RawTerminal, cursor::DetectCursorPos};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from` and `get_data` are never used
[INFO] [stdout]    --> src/main.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 195 | trait Game2048: Display {
[INFO] [stdout]     |       -------- associated items in this trait
[INFO] [stdout] 196 |     fn new(width: usize, height: usize) -> Self;
[INFO] [stdout] 197 |     fn from(row_major_board : Vec<Vec<Tile>>) -> Self;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 198 |     fn get_data(&self) -> Vec<Vec<Tile>>;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.22s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "85d896372f787440ed803a3d5f3e80f1ad124eb2bdc46c633e2d2e8c083317ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d896372f787440ed803a3d5f3e80f1ad124eb2bdc46c633e2d2e8c083317ec", kill_on_drop: false }`
[INFO] [stdout] 85d896372f787440ed803a3d5f3e80f1ad124eb2bdc46c633e2d2e8c083317ec