[INFO] crate libwebp-sys 0.3.0 is already in cache
[INFO] checking libwebp-sys-0.3.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate libwebp-sys 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate libwebp-sys 0.3.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libwebp-sys 0.3.0
[INFO] finished tweaking crates.io crate libwebp-sys 0.3.0
[INFO] tweaked toml for crates.io crate libwebp-sys 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 764e98b9e082809f96bac6aa88f6efaa8db1a0492649192112b0cb0e0172e319
[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" "764e98b9e082809f96bac6aa88f6efaa8db1a0492649192112b0cb0e0172e319"`
[INFO] [stderr]    Compiling libwebp-sys v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         let len = File::open("./tests/test1.webp").unwrap().read_to_end(&mut buf).unwrap();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.23s
[INFO] running `"docker" "inspect" "764e98b9e082809f96bac6aa88f6efaa8db1a0492649192112b0cb0e0172e319"`
[INFO] running `"docker" "rm" "-f" "764e98b9e082809f96bac6aa88f6efaa8db1a0492649192112b0cb0e0172e319"`
[INFO] [stdout] 764e98b9e082809f96bac6aa88f6efaa8db1a0492649192112b0cb0e0172e319
