[INFO] updating cached repository https://github.com/shaba721/firstproj
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ac9ae338aadc4727914a2b6f88c4207c3c0e7160
[INFO] checking shaba721/firstproj against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaba721%2Ffirstproj" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/shaba721/firstproj on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shaba721/firstproj
[INFO] finished tweaking git repo https://github.com/shaba721/firstproj
[INFO] tweaked toml for git repo https://github.com/shaba721/firstproj written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/shaba721/firstproj already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "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=allow" "-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" "+beta-2019-10-27" "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] cb4c493206ecc10d2240e0ce57763638aca375b4e7ae1040f8d1c8c54bc74637
[INFO] running `"docker" "start" "-a" "cb4c493206ecc10d2240e0ce57763638aca375b4e7ae1040f8d1c8c54bc74637"`
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking h2 v0.1.23
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.21
[INFO] [stderr]     Checking hyper v0.12.29
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.18
[INFO] [stderr]     Checking first_request v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stderr]   --> src/parsing.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use core::panicking::panic_fmt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `first_request`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stderr]   --> src/parsing.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use core::panicking::panic_fmt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `first_request`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cb4c493206ecc10d2240e0ce57763638aca375b4e7ae1040f8d1c8c54bc74637"`
[INFO] running `"docker" "rm" "-f" "cb4c493206ecc10d2240e0ce57763638aca375b4e7ae1040f8d1c8c54bc74637"`
[INFO] [stdout] cb4c493206ecc10d2240e0ce57763638aca375b4e7ae1040f8d1c8c54bc74637