[INFO] fetching crate enum_default 0.2.5...
[INFO] checking enum_default-0.2.5 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate enum_default 0.2.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate enum_default 0.2.5 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-3/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e5b11664ae697399b10bdeb5ae928d227571e674ba25aca38d0178ddb09f8ed
[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" "6e5b11664ae697399b10bdeb5ae928d227571e674ba25aca38d0178ddb09f8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e5b11664ae697399b10bdeb5ae928d227571e674ba25aca38d0178ddb09f8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e5b11664ae697399b10bdeb5ae928d227571e674ba25aca38d0178ddb09f8ed", kill_on_drop: false }`
[INFO] [stdout] 6e5b11664ae697399b10bdeb5ae928d227571e674ba25aca38d0178ddb09f8ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dd9327b9834a6fb92a092ca8c677437b9535b7a44692db6a2c15410baf4ab4d
[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" "6dd9327b9834a6fb92a092ca8c677437b9535b7a44692db6a2c15410baf4ab4d", 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 12.43s
[INFO] running `Command { std: "docker" "inspect" "6dd9327b9834a6fb92a092ca8c677437b9535b7a44692db6a2c15410baf4ab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd9327b9834a6fb92a092ca8c677437b9535b7a44692db6a2c15410baf4ab4d", kill_on_drop: false }`
[INFO] [stdout] 6dd9327b9834a6fb92a092ca8c677437b9535b7a44692db6a2c15410baf4ab4d