[INFO] cloning repository https://github.com/erewok/milos-mazes-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erewok/milos-mazes-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferewok%2Fmilos-mazes-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferewok%2Fmilos-mazes-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6005e22ffeb49492b284baab17a955449428b736 [INFO] checking erewok/milos-mazes-rs against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferewok%2Fmilos-mazes-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/erewok/milos-mazes-rs on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/erewok/milos-mazes-rs [INFO] finished tweaking git repo https://github.com/erewok/milos-mazes-rs [INFO] tweaked toml for git repo https://github.com/erewok/milos-mazes-rs written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/erewok/milos-mazes-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dwrote v0.11.0 [INFO] [stderr] Downloaded font-kit v0.7.1 [INFO] [stderr] Downloaded sw-composite v0.7.10 [INFO] [stderr] Downloaded typed-arena v2.0.1 [INFO] [stderr] Downloaded lyon_geom v0.15.0 [INFO] [stderr] Downloaded raqote v0.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e7aaf633669a4eed36d54f1707b6106954b8ab9068742836371dc97bb7da6a3 [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" "1e7aaf633669a4eed36d54f1707b6106954b8ab9068742836371dc97bb7da6a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e7aaf633669a4eed36d54f1707b6106954b8ab9068742836371dc97bb7da6a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e7aaf633669a4eed36d54f1707b6106954b8ab9068742836371dc97bb7da6a3", kill_on_drop: false }` [INFO] [stdout] 1e7aaf633669a4eed36d54f1707b6106954b8ab9068742836371dc97bb7da6a3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 66a7e17e0156612be1dff60b6482760cfa5671b5dbc10bb7cb03329cdc748cf0 [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" "66a7e17e0156612be1dff60b6482760cfa5671b5dbc10bb7cb03329cdc748cf0", kill_on_drop: false }` [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Checking sw-composite v0.7.10 [INFO] [stderr] Checking typed-arena v2.0.1 [INFO] [stderr] Compiling cmake v0.1.42 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking euclid v0.20.7 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Compiling servo-freetype-sys v4.0.5 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Compiling servo-fontconfig-sys v4.0.9 [INFO] [stderr] Compiling pathfinder_simd v0.5.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking lyon_geom v0.15.0 [INFO] [stderr] Checking freetype v0.4.1 [INFO] [stderr] Checking servo-fontconfig v0.4.0 [INFO] [stderr] Checking png v0.15.3 [INFO] [stderr] Checking pathfinder_geometry v0.5.1 [INFO] [stderr] Checking font-kit v0.7.1 [INFO] [stderr] Checking raqote v0.8.0 [INFO] [stderr] Checking milos-mazes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::seq::SliceRandom` [INFO] [stdout] --> src/algorithms.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::seq::SliceRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::seq::SliceRandom` [INFO] [stdout] --> src/algorithms.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::seq::SliceRandom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/grid.rs:172:12 [INFO] [stdout] | [INFO] [stdout] 172 | pub fn size(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `random_cell` [INFO] [stdout] --> src/grid.rs:176:12 [INFO] [stdout] | [INFO] [stdout] 176 | pub fn random_cell(&self) -> &cell::Cell { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/grid.rs:207:9 [INFO] [stdout] | [INFO] [stdout] 207 | dt.write_png(filename); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/grid.rs:172:12 [INFO] [stdout] | [INFO] [stdout] 172 | pub fn size(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `random_cell` [INFO] [stdout] --> src/grid.rs:176:12 [INFO] [stdout] | [INFO] [stdout] 176 | pub fn random_cell(&self) -> &cell::Cell { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/grid.rs:207:9 [INFO] [stdout] | [INFO] [stdout] 207 | dt.write_png(filename); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.10s [INFO] running `Command { std: "docker" "inspect" "66a7e17e0156612be1dff60b6482760cfa5671b5dbc10bb7cb03329cdc748cf0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66a7e17e0156612be1dff60b6482760cfa5671b5dbc10bb7cb03329cdc748cf0", kill_on_drop: false }` [INFO] [stdout] 66a7e17e0156612be1dff60b6482760cfa5671b5dbc10bb7cb03329cdc748cf0