[INFO] cloning repository https://github.com/jojohanhannesnes/thousand_island [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jojohanhannesnes/thousand_island" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjojohanhannesnes%2Fthousand_island", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjojohanhannesnes%2Fthousand_island'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b7cb0b3e976eb04137e854f6ec1cb568565cf5a8 [INFO] checking jojohanhannesnes/thousand_island against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjojohanhannesnes%2Fthousand_island" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/jojohanhannesnes/thousand_island [INFO] finished tweaking git repo https://github.com/jojohanhannesnes/thousand_island [INFO] tweaked toml for git repo https://github.com/jojohanhannesnes/thousand_island written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/jojohanhannesnes/thousand_island on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/jojohanhannesnes/thousand_island 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getrandom v0.2.14 [INFO] [stderr] Downloaded syn v2.0.58 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9aa9b84ce3f498655fc0f3675cde7bced37e10dd3cb5b7478adc45f3a46ece6a [INFO] running `Command { std: "docker" "start" "-a" "9aa9b84ce3f498655fc0f3675cde7bced37e10dd3cb5b7478adc45f3a46ece6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9aa9b84ce3f498655fc0f3675cde7bced37e10dd3cb5b7478adc45f3a46ece6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9aa9b84ce3f498655fc0f3675cde7bced37e10dd3cb5b7478adc45f3a46ece6a", kill_on_drop: false }` [INFO] [stdout] 9aa9b84ce3f498655fc0f3675cde7bced37e10dd3cb5b7478adc45f3a46ece6a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 511faa89e417d29628d2e5554a16997bbcd7114fd34b37d97320c178cc2919a4 [INFO] running `Command { std: "docker" "start" "-a" "511faa89e417d29628d2e5554a16997bbcd7114fd34b37d97320c178cc2919a4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking algorithms v0.1.0 (/opt/rustwide/workdir/algorithms) [INFO] [stderr] Checking time v0.3.34 [INFO] [stdout] warning: struct `Edge` is never constructed [INFO] [stdout] --> algorithms/src/boruvkas.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Edge { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Graph` is never constructed [INFO] [stdout] --> algorithms/src/boruvkas.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Graph { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `boruvkas_algorithm` is never used [INFO] [stdout] --> algorithms/src/boruvkas.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn boruvkas_algorithm(graph: &Graph) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Edge` is never constructed [INFO] [stdout] --> algorithms/src/boruvkas.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Edge { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Graph` is never constructed [INFO] [stdout] --> algorithms/src/boruvkas.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Graph { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `boruvkas_algorithm` is never used [INFO] [stdout] --> algorithms/src/boruvkas.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn boruvkas_algorithm(graph: &Graph) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getrandom v0.2.14 [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 challenges v0.1.0 (/opt/rustwide/workdir/challenges) [INFO] [stdout] warning: unexpected `cfg` condition value: `grapheme` [INFO] [stdout] --> challenges/src/exercism/reverse_string.rs:55:7 [INFO] [stdout] | [INFO] [stdout] 55 | #[cfg(feature = "grapheme")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `grapheme` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `CONTENTS` is never used [INFO] [stdout] --> challenges/src/euler/largest_product_in_grid.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | const CONTENTS: &str = " [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `largest_product_in_grid` is never used [INFO] [stdout] --> challenges/src/euler/largest_product_in_grid.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn largest_product_in_grid() -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `grapheme` [INFO] [stdout] --> challenges/src/exercism/reverse_string.rs:55:7 [INFO] [stdout] | [INFO] [stdout] 55 | #[cfg(feature = "grapheme")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `grapheme` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s [INFO] running `Command { std: "docker" "inspect" "511faa89e417d29628d2e5554a16997bbcd7114fd34b37d97320c178cc2919a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "511faa89e417d29628d2e5554a16997bbcd7114fd34b37d97320c178cc2919a4", kill_on_drop: false }` [INFO] [stdout] 511faa89e417d29628d2e5554a16997bbcd7114fd34b37d97320c178cc2919a4