[INFO] fetching crate xcf 0.3.0...
[INFO] checking xcf-0.3.0 against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] extracting crate xcf 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate xcf 0.3.0 on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xcf 0.3.0
[INFO] finished tweaking crates.io crate xcf 0.3.0
[INFO] tweaked toml for crates.io crate xcf 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 337cb66f074796baad910f23a21c2157e19402f7b71ffd006e03fe30088c7b99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "337cb66f074796baad910f23a21c2157e19402f7b71ffd006e03fe30088c7b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "337cb66f074796baad910f23a21c2157e19402f7b71ffd006e03fe30088c7b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337cb66f074796baad910f23a21c2157e19402f7b71ffd006e03fe30088c7b99", kill_on_drop: false }`
[INFO] [stdout] 337cb66f074796baad910f23a21c2157e19402f7b71ffd006e03fe30088c7b99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22e91282993b0f551bf8aa2e5dc7a57e036c6c09c7f2ec5ddcf28c725f4483e9
[INFO] running `Command { std: "docker" "start" "-a" "22e91282993b0f551bf8aa2e5dc7a57e036c6c09c7f2ec5ddcf28c725f4483e9", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]     Checking xcf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `guess_size`
[INFO] [stdout]    --> src/lib.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn guess_size(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `guess_size`
[INFO] [stdout]    --> src/lib.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn guess_size(&self) -> usize {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `Command { std: "docker" "inspect" "22e91282993b0f551bf8aa2e5dc7a57e036c6c09c7f2ec5ddcf28c725f4483e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e91282993b0f551bf8aa2e5dc7a57e036c6c09c7f2ec5ddcf28c725f4483e9", kill_on_drop: false }`
[INFO] [stdout] 22e91282993b0f551bf8aa2e5dc7a57e036c6c09c7f2ec5ddcf28c725f4483e9