[INFO] cloning repository https://github.com/matklad/llcg [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/llcg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fllcg", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fllcg'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3ebfd1e1a9861cb7f4e4635cd802611a69aa3e00 [INFO] checking matklad/llcg against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fllcg" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matklad/llcg 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/matklad/llcg [INFO] finished tweaking git repo https://github.com/matklad/llcg [INFO] tweaked toml for git repo https://github.com/matklad/llcg written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/matklad/llcg 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] aa140e25d1735338a560912ee69b6483afe6202926c400ba706bc058ac3c3a19 [INFO] running `Command { std: "docker" "start" "-a" "aa140e25d1735338a560912ee69b6483afe6202926c400ba706bc058ac3c3a19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aa140e25d1735338a560912ee69b6483afe6202926c400ba706bc058ac3c3a19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa140e25d1735338a560912ee69b6483afe6202926c400ba706bc058ac3c3a19", kill_on_drop: false }` [INFO] [stdout] aa140e25d1735338a560912ee69b6483afe6202926c400ba706bc058ac3c3a19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fb5d263e62bf20c8b6373c2587dde3b14b11568ddae83297932fc7bf0b8120fd [INFO] running `Command { std: "docker" "start" "-a" "fb5d263e62bf20c8b6373c2587dde3b14b11568ddae83297932fc7bf0b8120fd", kill_on_drop: false }` [INFO] [stderr] Checking llcg v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `curr` [INFO] [stdout] --> src/main.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_curr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `callee` [INFO] [stdout] --> src/main.rs:86:10 [INFO] [stdout] | [INFO] [stdout] 86 | for (callee, caller) in callers { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `curr` [INFO] [stdout] --> src/main.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_curr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `callee` [INFO] [stdout] --> src/main.rs:86:10 [INFO] [stdout] | [INFO] [stdout] 86 | for (callee, caller) in callers { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "fb5d263e62bf20c8b6373c2587dde3b14b11568ddae83297932fc7bf0b8120fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb5d263e62bf20c8b6373c2587dde3b14b11568ddae83297932fc7bf0b8120fd", kill_on_drop: false }` [INFO] [stdout] fb5d263e62bf20c8b6373c2587dde3b14b11568ddae83297932fc7bf0b8120fd [INFO] checking matklad/llcg against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fllcg" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matklad/llcg on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/matklad/llcg [INFO] finished tweaking git repo https://github.com/matklad/llcg [INFO] tweaked toml for git repo https://github.com/matklad/llcg written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/matklad/llcg 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 261ea31df82c481737157268ca7edff955c47fe1b71c07882818b0a73f618f6a [INFO] running `Command { std: "docker" "start" "-a" "261ea31df82c481737157268ca7edff955c47fe1b71c07882818b0a73f618f6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "261ea31df82c481737157268ca7edff955c47fe1b71c07882818b0a73f618f6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "261ea31df82c481737157268ca7edff955c47fe1b71c07882818b0a73f618f6a", kill_on_drop: false }` [INFO] [stdout] 261ea31df82c481737157268ca7edff955c47fe1b71c07882818b0a73f618f6a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 884e18c41e133dafae6664c83c3d3896ec518ef72f720e1239c754b523098336 [INFO] running `Command { std: "docker" "start" "-a" "884e18c41e133dafae6664c83c3d3896ec518ef72f720e1239c754b523098336", kill_on_drop: false }` [INFO] [stderr] Checking llcg v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `curr` [INFO] [stdout] --> src/main.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_curr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `callee` [INFO] [stdout] --> src/main.rs:86:10 [INFO] [stdout] | [INFO] [stdout] 86 | for (callee, caller) in callers { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `curr` [INFO] [stdout] --> src/main.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_curr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `callee` [INFO] [stdout] --> src/main.rs:86:10 [INFO] [stdout] | [INFO] [stdout] 86 | for (callee, caller) in callers { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let mut curr = finish; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "884e18c41e133dafae6664c83c3d3896ec518ef72f720e1239c754b523098336", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "884e18c41e133dafae6664c83c3d3896ec518ef72f720e1239c754b523098336", kill_on_drop: false }` [INFO] [stdout] 884e18c41e133dafae6664c83c3d3896ec518ef72f720e1239c754b523098336