[INFO] crate rtdlib 1.5.0 is already in cache
[INFO] checking rtdlib-1.5.0 against master#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] extracting crate rtdlib 1.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rtdlib 1.5.0 on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rtdlib 1.5.0
[INFO] finished tweaking crates.io crate rtdlib 1.5.0
[INFO] tweaked toml for crates.io crate rtdlib 1.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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] 9f671c5a6acd956a36c76c915ad54c314ecf4811fe950c1b7625acd812ef1e5f
[INFO] running `"docker" "start" "-a" "9f671c5a6acd956a36c76c915ad54c314ecf4811fe950c1b7625acd812ef1e5f"`
[INFO] [stderr]     Checking rtdlib v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rtdlib`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name rtdlib src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=d69d649bdcfae44a -C extra-filename=-d69d649bdcfae44a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-918aa0c5e42b5a72.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ca20b7cc364392e6.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-f9860b05e2bd304c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7e3417c49fef14f4.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:36:30
[INFO] [stderr]    |
[INFO] [stderr] 36 |   fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9f671c5a6acd956a36c76c915ad54c314ecf4811fe950c1b7625acd812ef1e5f"`
[INFO] running `"docker" "rm" "-f" "9f671c5a6acd956a36c76c915ad54c314ecf4811fe950c1b7625acd812ef1e5f"`
[INFO] [stdout] 9f671c5a6acd956a36c76c915ad54c314ecf4811fe950c1b7625acd812ef1e5f