[INFO] fetching crate nom-tracable 0.4.0...
[INFO] checking nom-tracable-0.4.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate nom-tracable 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate nom-tracable 0.4.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nom-tracable 0.4.0
[INFO] finished tweaking crates.io crate nom-tracable 0.4.0
[INFO] tweaked toml for crates.io crate nom-tracable 0.4.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate nom-tracable 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b8540616f007c1f27ab697f0ac84cc77a461d184a6a412e6833e8da2ee087bb1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b8540616f007c1f27ab697f0ac84cc77a461d184a6a412e6833e8da2ee087bb1"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking nom_locate v1.0.0
[INFO] [stderr]    Compiling nom-tracable-macros v0.4.0
[INFO] [stderr]     Checking nom-tracable v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `ret`
[INFO] [stderr]   --> examples/example.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let ret = expr(LocatedSpanEx::new_extra("1-1+1+1-1", info));
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_ret`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.93s
[INFO] running `"docker" "inspect" "b8540616f007c1f27ab697f0ac84cc77a461d184a6a412e6833e8da2ee087bb1"`
[INFO] running `"docker" "rm" "-f" "b8540616f007c1f27ab697f0ac84cc77a461d184a6a412e6833e8da2ee087bb1"`
[INFO] [stdout] b8540616f007c1f27ab697f0ac84cc77a461d184a6a412e6833e8da2ee087bb1