[INFO] updating cached repository https://github.com/genya0407/fake_dns
[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] b745abbfe989e9f1cb821f1cd903c308a81dedc7
[INFO] checking genya0407/fake_dns against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenya0407%2Ffake_dns" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/genya0407/fake_dns on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/genya0407/fake_dns
[INFO] finished tweaking git repo https://github.com/genya0407/fake_dns
[INFO] tweaked toml for git repo https://github.com/genya0407/fake_dns written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/genya0407/fake_dns already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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] fa3b17feae989d10bc624a84d2b683f1ed8591e4c7a6c1f304c72e45fc05b918
[INFO] running `"docker" "start" "-a" "fa3b17feae989d10bc624a84d2b683f1ed8591e4c7a6c1f304c72e45fc05b918"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]     Checking pnet_base v0.21.0
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]     Checking string-error v0.1.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling regex-syntax v0.5.3
[INFO] [stderr]     Checking pnet_sys v0.21.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking pnet_macros_support v0.21.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]     Checking pnet_datalink v0.21.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.21.0
[INFO] [stderr]    Compiling pnet_packet v0.21.0
[INFO] [stderr]     Checking pnet_transport v0.21.0
[INFO] [stderr]     Checking fake_dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::slice::SliceConcatExt`
[INFO] [stderr]  --> src/dns/message.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::slice::SliceConcatExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::slice::SliceConcatExt`
[INFO] [stderr]  --> src/dns/message.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::slice::SliceConcatExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `fake_dns`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fake_dns`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fa3b17feae989d10bc624a84d2b683f1ed8591e4c7a6c1f304c72e45fc05b918"`
[INFO] running `"docker" "rm" "-f" "fa3b17feae989d10bc624a84d2b683f1ed8591e4c7a6c1f304c72e45fc05b918"`
[INFO] [stdout] fa3b17feae989d10bc624a84d2b683f1ed8591e4c7a6c1f304c72e45fc05b918