[INFO] crate rtdlib 1.4.0 is already in cache
[INFO] checking rtdlib-1.4.0 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate rtdlib 1.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rtdlib 1.4.0 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rtdlib 1.4.0
[INFO] finished tweaking crates.io crate rtdlib 1.4.0
[INFO] tweaked toml for crates.io crate rtdlib 1.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 4dd743e933654d58167b0070247d81b7bd62e1977509302a7b110137bf37edfd
[INFO] running `"docker" "start" "-a" "4dd743e933654d58167b0070247d81b7bd62e1977509302a7b110137bf37edfd"`
[INFO] [stderr]     Checking rtdlib v1.4.0 (/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 --color never --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=ebd4fe8bbc564ca0 -C extra-filename=-ebd4fe8bbc564ca0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-dbd6e0e458662b5c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d8deb4181e31dd1a.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-89a9502bc0fd1a82.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6d9b14cd33d38dd7.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" "4dd743e933654d58167b0070247d81b7bd62e1977509302a7b110137bf37edfd"`
[INFO] running `"docker" "rm" "-f" "4dd743e933654d58167b0070247d81b7bd62e1977509302a7b110137bf37edfd"`
[INFO] [stdout] 4dd743e933654d58167b0070247d81b7bd62e1977509302a7b110137bf37edfd