[INFO] cloning repository https://github.com/iracigt/lichen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iracigt/lichen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firacigt%2Flichen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firacigt%2Flichen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4842b07196b03b252997d8a7d88e24244db7b631 [INFO] checking iracigt/lichen against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firacigt%2Flichen" "/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/iracigt/lichen 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/iracigt/lichen [INFO] finished tweaking git repo https://github.com/iracigt/lichen [INFO] tweaked toml for git repo https://github.com/iracigt/lichen written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/iracigt/lichen 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded onig v6.3.1 [INFO] [stderr] Downloaded plist v1.3.1 [INFO] [stderr] Downloaded time v0.3.5 [INFO] [stderr] Downloaded onig_sys v69.7.1 [INFO] [stderr] Downloaded syntect v4.6.0 [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] 96f6cfc6d88620527b8ebcb27d2a5522663bfb9a872e0c88c0771751e9dc3a4f [INFO] running `Command { std: "docker" "start" "-a" "96f6cfc6d88620527b8ebcb27d2a5522663bfb9a872e0c88c0771751e9dc3a4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96f6cfc6d88620527b8ebcb27d2a5522663bfb9a872e0c88c0771751e9dc3a4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96f6cfc6d88620527b8ebcb27d2a5522663bfb9a872e0c88c0771751e9dc3a4f", kill_on_drop: false }` [INFO] [stdout] 96f6cfc6d88620527b8ebcb27d2a5522663bfb9a872e0c88c0771751e9dc3a4f [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] 4d9ac9c2c7e75095241d3b96364300511309dde2f2f08e82df10d4b64af5c5a4 [INFO] running `Command { std: "docker" "start" "-a" "4d9ac9c2c7e75095241d3b96364300511309dde2f2f08e82df10d4b64af5c5a4", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling pkg-config v0.3.22 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling crc32fast v1.3.0 [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking time v0.3.5 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking xml-rs v0.8.4 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking line-wrap v0.1.1 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Compiling onig_sys v69.7.1 [INFO] [stderr] Checking flate2 v1.0.22 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking plist v1.3.1 [INFO] [stderr] Checking onig v6.3.1 [INFO] [stderr] Checking syntect v4.6.0 [INFO] [stderr] Checking lichen v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `filename` and `contents` are never read [INFO] [stdout] --> src/frontend.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct CodeUnit { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 24 | filename: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 25 | contents: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `score` is never used [INFO] [stdout] --> src/backend.rs:101:12 [INFO] [stdout] | [INFO] [stdout] 64 | / impl Backend [INFO] [stdout] 65 | | where [INFO] [stdout] 66 | | T : Token, [INFO] [stdout] 67 | | K : Eq + Hash + Clone, [INFO] [stdout] 68 | | H : for<'r> Fn(usize, ElemIter<'r, &T>) -> K, [INFO] [stdout] | |_________________________________________________- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | pub fn score(&self, sub: &Submission) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `filename` and `contents` are never read [INFO] [stdout] --> src/frontend.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct CodeUnit { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 24 | filename: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 25 | contents: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `score` is never used [INFO] [stdout] --> src/backend.rs:101:12 [INFO] [stdout] | [INFO] [stdout] 64 | / impl Backend [INFO] [stdout] 65 | | where [INFO] [stdout] 66 | | T : Token, [INFO] [stdout] 67 | | K : Eq + Hash + Clone, [INFO] [stdout] 68 | | H : for<'r> Fn(usize, ElemIter<'r, &T>) -> K, [INFO] [stdout] | |_________________________________________________- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | pub fn score(&self, sub: &Submission) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.57s [INFO] running `Command { std: "docker" "inspect" "4d9ac9c2c7e75095241d3b96364300511309dde2f2f08e82df10d4b64af5c5a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d9ac9c2c7e75095241d3b96364300511309dde2f2f08e82df10d4b64af5c5a4", kill_on_drop: false }` [INFO] [stdout] 4d9ac9c2c7e75095241d3b96364300511309dde2f2f08e82df10d4b64af5c5a4