[INFO] fetching crate image-encoder 0.1.0...
[INFO] checking image-encoder-0.1.0 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate image-encoder 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate image-encoder 0.1.0 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate image-encoder 0.1.0
[INFO] finished tweaking crates.io crate image-encoder 0.1.0
[INFO] tweaked toml for crates.io crate image-encoder 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate image-encoder 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b9f6ef070f76dba34bdb278cc362e56eaea661fbba7557b3214fc110a59e7d5
[INFO] running `"docker" "start" "-a" "1b9f6ef070f76dba34bdb278cc362e56eaea661fbba7557b3214fc110a59e7d5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling scrap v0.5.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking block v0.1.6
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking image-encoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/png/zlib.rs:13:17
[INFO] [stderr]    |
[INFO] [stderr] 13 |                 (n + {if data.len() == n * CHUNK_SIZE && data.len() != 0 { 0 } else { 1 }})
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/png/zlib.rs:13:17
[INFO] [stderr]    |
[INFO] [stderr] 13 |                 (n + {if data.len() == n * CHUNK_SIZE && data.len() != 0 { 0 } else { 1 }})
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `"docker" "inspect" "1b9f6ef070f76dba34bdb278cc362e56eaea661fbba7557b3214fc110a59e7d5"`
[INFO] running `"docker" "rm" "-f" "1b9f6ef070f76dba34bdb278cc362e56eaea661fbba7557b3214fc110a59e7d5"`
[INFO] [stdout] 1b9f6ef070f76dba34bdb278cc362e56eaea661fbba7557b3214fc110a59e7d5