[INFO] cloning repository https://github.com/KENILSHAHH/GraphEngine [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KENILSHAHH/GraphEngine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKENILSHAHH%2FGraphEngine", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKENILSHAHH%2FGraphEngine'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5814e6b96fe6ffe26a8c16868abc59748cfbd665 [INFO] checking KENILSHAHH/GraphEngine against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKENILSHAHH%2FGraphEngine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/KENILSHAHH/GraphEngine [INFO] finished tweaking git repo https://github.com/KENILSHAHH/GraphEngine [INFO] tweaked toml for git repo https://github.com/KENILSHAHH/GraphEngine written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/KENILSHAHH/GraphEngine on toolchain 52995a223f2919dd3e2e427231db90a257350ded [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/KENILSHAHH/GraphEngine 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac [INFO] running `Command { std: "docker" "start" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Checking succintGraph v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: useless conversion to the same type: `std::io::Error` [INFO] [stdout] --> src/main.rs:287:9 [INFO] [stdout] | [INFO] [stdout] 287 | writeln!(file, "}}").map_err(Into::into) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this method call relies on the `impl Into for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors [INFO] [stdout] = note: `#[deny(self_type_conversion)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 34 | impl HintFn { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 35 | fn new(func: fn(&[u32]) -> u32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Hint` is never constructed [INFO] [stdout] --> src/main.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 47 | enum Op { [INFO] [stdout] | -- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 51 | Hint(Vec, HintFn), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Op` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `assert_equal` and `hint` are never used [INFO] [stdout] --> src/main.rs:123:12 [INFO] [stdout] | [INFO] [stdout] 71 | impl Builder { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn assert_equal(&mut self, a: &Node, b: &Node) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 129 | pub fn hint(&mut self, parents: Vec, func: fn(&[u32]) -> u32) -> Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `succintGraph` (bin "succintGraph" test) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: useless conversion to the same type: `std::io::Error` [INFO] [stdout] --> src/main.rs:287:9 [INFO] [stdout] | [INFO] [stdout] 287 | writeln!(file, "}}").map_err(Into::into) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this method call relies on the `impl Into for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors [INFO] [stdout] = note: `#[deny(self_type_conversion)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `succintGraph` (bin "succintGraph") due to 1 previous error; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac", kill_on_drop: false }` [INFO] [stdout] 7dc3820bdd5d56ebf30ead6c78ac3d9134fc0c2dd8bba761ae7198bd3044a9ac