[INFO] fetching crate loop-forever 1.0.2...
[INFO] checking loop-forever-1.0.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate loop-forever 1.0.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate loop-forever 1.0.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate loop-forever 1.0.2
[INFO] finished tweaking crates.io crate loop-forever 1.0.2
[INFO] tweaked toml for crates.io crate loop-forever 1.0.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 2ed86178503e24ac7c0274625a8fe03b8ea2e4033007d0cc18e6d7abd754ef01
[INFO] running `"docker" "start" "-a" "2ed86178503e24ac7c0274625a8fe03b8ea2e4033007d0cc18e6d7abd754ef01"`
[INFO] [stderr]     Checking loop-forever v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0464]: multiple matching crates for `libc`
[INFO] [stderr]  --> src/forever.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: candidates:
[INFO] [stderr]           crate `libc`: /opt/rustwide/rustup-home/toolchains/ea663bba38739867a4b75ac820991b4f5d093c3b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-4ed5f4e80e5422ad.rlib
[INFO] [stderr]           crate `libc`: /opt/rustwide/rustup-home/toolchains/ea663bba38739867a4b75ac820991b4f5d093c3b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-13055763961aac6a.rlib
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `libc`
[INFO] [stderr]  --> src/forever.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `loop-forever`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2ed86178503e24ac7c0274625a8fe03b8ea2e4033007d0cc18e6d7abd754ef01"`
[INFO] running `"docker" "rm" "-f" "2ed86178503e24ac7c0274625a8fe03b8ea2e4033007d0cc18e6d7abd754ef01"`
[INFO] [stdout] 2ed86178503e24ac7c0274625a8fe03b8ea2e4033007d0cc18e6d7abd754ef01