[INFO] fetching crate lfan 0.2.6... [INFO] checking lfan-0.2.6 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392 [INFO] extracting crate lfan 0.2.6 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate lfan 0.2.6 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate lfan 0.2.6 [INFO] finished tweaking crates.io crate lfan 0.2.6 [INFO] tweaked toml for crates.io crate lfan 0.2.6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [INFO] [stderr] Adding gimli v0.29.0 (latest: v0.31.0) [INFO] [stderr] Adding miniz_oxide v0.7.4 (latest: v0.8.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 613e84859f6b2122dc253ac46ec97c169035ba12af9a16aec8c247d7fc3b835d [INFO] running `Command { std: "docker" "start" "-a" "613e84859f6b2122dc253ac46ec97c169035ba12af9a16aec8c247d7fc3b835d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "613e84859f6b2122dc253ac46ec97c169035ba12af9a16aec8c247d7fc3b835d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "613e84859f6b2122dc253ac46ec97c169035ba12af9a16aec8c247d7fc3b835d", kill_on_drop: false }` [INFO] [stdout] 613e84859f6b2122dc253ac46ec97c169035ba12af9a16aec8c247d7fc3b835d [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fad4f33380009547b1e383747cba4b08d84fac3685e28ae35c686a9316af663 [INFO] running `Command { std: "docker" "start" "-a" "5fad4f33380009547b1e383747cba4b08d84fac3685e28ae35c686a9316af663", kill_on_drop: false }` [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking lfan v0.2.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `insert`, `get`, and `clear` are never used [INFO] [stdout] --> src/cache/cache_trait.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub trait Cache { [INFO] [stdout] | ----- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 12 | fn insert(&mut self, key: Self::Key, value: Self::Value) -> (bool, Option); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 13 | [INFO] [stdout] 14 | fn get(&mut self, key: &Q) -> Option<&Self::Value> [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | fn clear(&mut self); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `insert`, `get`, and `clear` are never used [INFO] [stdout] --> src/cache/cache_trait.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub trait Cache { [INFO] [stdout] | ----- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 12 | fn insert(&mut self, key: Self::Key, value: Self::Value) -> (bool, Option); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 13 | [INFO] [stdout] 14 | fn get(&mut self, key: &Q) -> Option<&Self::Value> [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | fn clear(&mut self); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s [INFO] running `Command { std: "docker" "inspect" "5fad4f33380009547b1e383747cba4b08d84fac3685e28ae35c686a9316af663", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fad4f33380009547b1e383747cba4b08d84fac3685e28ae35c686a9316af663", kill_on_drop: false }` [INFO] [stdout] 5fad4f33380009547b1e383747cba4b08d84fac3685e28ae35c686a9316af663