[INFO] fetching crate enum_default 0.2.5...
[INFO] checking enum_default-0.2.5 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate enum_default 0.2.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate enum_default 0.2.5 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enum_default 0.2.5
[INFO] finished tweaking crates.io crate enum_default 0.2.5
[INFO] tweaked toml for crates.io crate enum_default 0.2.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate enum_default 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", 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] c72f0fc0aeae12826139124bc346910f828c29e3b4a2cd23504c582e5368fa47
[INFO] running `Command { std: "docker" "start" "-a" "c72f0fc0aeae12826139124bc346910f828c29e3b4a2cd23504c582e5368fa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c72f0fc0aeae12826139124bc346910f828c29e3b4a2cd23504c582e5368fa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72f0fc0aeae12826139124bc346910f828c29e3b4a2cd23504c582e5368fa47", kill_on_drop: false }`
[INFO] [stdout] c72f0fc0aeae12826139124bc346910f828c29e3b4a2cd23504c582e5368fa47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e13a3284eaf6d3c1ee5c6cabec266833e7cda04e572d5e3e9d9f052e877d9c2f
[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" "e13a3284eaf6d3c1ee5c6cabec266833e7cda04e572d5e3e9d9f052e877d9c2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking enum_default v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Second`
[INFO] [stdout]  --> examples/test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Second,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `First`
[INFO] [stdout]   --> examples/test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     First,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.23s
[INFO] running `Command { std: "docker" "inspect" "e13a3284eaf6d3c1ee5c6cabec266833e7cda04e572d5e3e9d9f052e877d9c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13a3284eaf6d3c1ee5c6cabec266833e7cda04e572d5e3e9d9f052e877d9c2f", kill_on_drop: false }`
[INFO] [stdout] e13a3284eaf6d3c1ee5c6cabec266833e7cda04e572d5e3e9d9f052e877d9c2f