[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 try#8810c24b0958114d8dbb32d878444e8956fce80f for pr-66063
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaba721%2Ffirstproj" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/shaba721/firstproj on toolchain 8810c24b0958114d8dbb32d878444e8956fce80f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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-3/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" "+8810c24b0958114d8dbb32d878444e8956fce80f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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] 7f698a6c59b4e6d766e890e18da32f65d01418038fc18dbc5be02d1076ef32d8
[INFO] running `"docker" "start" "-a" "7f698a6c59b4e6d766e890e18da32f65d01418038fc18dbc5be02d1076ef32d8"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking tokio-trace-core v0.2.0
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking miniz_oxide v0.2.1
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.21
[INFO] [stderr]     Checking h2 v0.1.23
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking hyper v0.12.29
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde v1.0.92
[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[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: 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" "7f698a6c59b4e6d766e890e18da32f65d01418038fc18dbc5be02d1076ef32d8"`
[INFO] running `"docker" "rm" "-f" "7f698a6c59b4e6d766e890e18da32f65d01418038fc18dbc5be02d1076ef32d8"`
[INFO] [stdout] 7f698a6c59b4e6d766e890e18da32f65d01418038fc18dbc5be02d1076ef32d8