[INFO] cloning repository https://github.com/pierrechevalier83/2048-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pierrechevalier83/2048-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2F2048-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2F2048-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8de61e8e0342d54b0ae44b937ecb3952c4d2a94c [INFO] checking pierrechevalier83/2048-rs against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2F2048-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pierrechevalier83/2048-rs on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pierrechevalier83/2048-rs [INFO] finished tweaking git repo https://github.com/pierrechevalier83/2048-rs [INFO] tweaked toml for git repo https://github.com/pierrechevalier83/2048-rs written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/pierrechevalier83/2048-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.1.36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7cf4e6ab572af0dd219c841bf63187a8430724708d7edea64533c15dedaabc18 [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" "7cf4e6ab572af0dd219c841bf63187a8430724708d7edea64533c15dedaabc18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7cf4e6ab572af0dd219c841bf63187a8430724708d7edea64533c15dedaabc18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7cf4e6ab572af0dd219c841bf63187a8430724708d7edea64533c15dedaabc18", kill_on_drop: false }` [INFO] [stdout] 7cf4e6ab572af0dd219c841bf63187a8430724708d7edea64533c15dedaabc18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a16271fb612953cae3782443318bfa016540849f2f4c55187d00e93097ed73e0 [INFO] running `Command { std: "docker" "start" "-a" "a16271fb612953cae3782443318bfa016540849f2f4c55187d00e93097ed73e0", kill_on_drop: false }` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking rustc-serialize v0.3.22 [INFO] [stderr] Checking unicode-segmentation v1.1.0 [INFO] [stderr] Checking num-integer v0.1.33 [INFO] [stderr] Checking termion v1.2.0 [INFO] [stderr] Checking num-iter v0.1.33 [INFO] [stderr] Checking matrix_display v0.3.0 [INFO] [stderr] Checking num-bigint v0.1.36 [INFO] [stderr] Checking num-complex v0.1.36 [INFO] [stderr] Checking num-rational v0.1.36 [INFO] [stderr] Checking num v0.1.37 [INFO] [stderr] Checking game-2048 v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stdout] --> src/game.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | / self.data [INFO] [stdout] 70 | | .chunks_mut(4) [INFO] [stdout] 71 | | .map(|row| { [INFO] [stdout] 72 | | let (new_row, new_score) = match dir { [INFO] [stdout] ... | [INFO] [stdout] 87 | | }) [INFO] [stdout] 88 | | .collect::>(); [INFO] [stdout] | |_________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stdout] --> src/game.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | / self.data [INFO] [stdout] 70 | | .chunks_mut(4) [INFO] [stdout] 71 | | .map(|row| { [INFO] [stdout] 72 | | let (new_row, new_score) = match dir { [INFO] [stdout] ... | [INFO] [stdout] 87 | | }) [INFO] [stdout] 88 | | .collect::>(); [INFO] [stdout] | |_________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.63s [INFO] running `Command { std: "docker" "inspect" "a16271fb612953cae3782443318bfa016540849f2f4c55187d00e93097ed73e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a16271fb612953cae3782443318bfa016540849f2f4c55187d00e93097ed73e0", kill_on_drop: false }` [INFO] [stdout] a16271fb612953cae3782443318bfa016540849f2f4c55187d00e93097ed73e0