[INFO] updating cached repository https://github.com/zacbrown/rusty-netconn
[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] f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5
[INFO] testing zacbrown/rusty-netconn against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zacbrown/rusty-netconn on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/zacbrown/rusty-netconn
[INFO] finished tweaking git repo https://github.com/zacbrown/rusty-netconn
[INFO] tweaked toml for git repo https://github.com/zacbrown/rusty-netconn written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/zacbrown/rusty-netconn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 36ad95b5ba3a8b9dca94981d397008a4e67c10f74289b20d72f1bfd5748cc720
[INFO] running `"docker" "start" "-a" "36ad95b5ba3a8b9dca94981d397008a4e67c10f74289b20d72f1bfd5748cc720"`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling encode_unicode v0.3.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.5
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling pnet_sys v0.21.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.9
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling pnet_datalink v0.21.0
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling tokio-timer v0.2.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling tokio v0.1.5
[INFO] [stderr]    Compiling tokio-core v0.1.17
[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]    Compiling pnet_transport v0.21.0
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]    Compiling rusty-netconns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let mut stats = {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut stats = {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |         let mut stats = {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:251:13
[INFO] [stderr]     |
[INFO] [stderr] 251 |         let mut stats = {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.rusty_netconns.8xgvsi02-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3" "/opt/rustwide/target/debug/deps/rusty_netconns-e27665bf6577a5c3.503koh0g7390x6pl.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libprettytable-2c8c5678d1c6d121.rlib" "/opt/rustwide/target/debug/deps/libencode_unicode-1166cacdab180af6.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-26a3a548d6bb9511.rlib" "/opt/rustwide/target/debug/deps/libcsv-b7be3dc73abb6327.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-bfce5498649dc14e.rlib" "/opt/rustwide/target/debug/deps/libmemchr-43de4f699713b0e8.rlib" "/opt/rustwide/target/debug/deps/libatty-df4f381743f6a920.rlib" "/opt/rustwide/target/debug/deps/libterm-cc3451e15b801772.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-058570a6286818eb.rlib" "/opt/rustwide/target/debug/deps/libpnet-3c9ec48869c9238d.rlib" "/opt/rustwide/target/debug/deps/libpnet_transport-c150c3a0c805f5a4.rlib" "/opt/rustwide/target/debug/deps/libpnet_packet-356fedf3c203b62a.rlib" "/opt/rustwide/target/debug/deps/libpnet_macros_support-d3d2274922369a46.rlib" "/opt/rustwide/target/debug/deps/libpnet_datalink-ae5f4ceac5da1c74.rlib" "/opt/rustwide/target/debug/deps/libpnet_sys-8dce853ce5132cbc.rlib" "/opt/rustwide/target/debug/deps/libpnet_base-e10c02e58c8d877d.rlib" "/opt/rustwide/target/debug/deps/libipnetwork-20a21e78f84f2f44.rlib" "/opt/rustwide/target/debug/deps/libpcap-05e5db14fcc7a733.rlib" "/opt/rustwide/target/debug/deps/libtokio_core-ee90d1e5850042d4.rlib" "/opt/rustwide/target/debug/deps/libscoped_tls-f319495effaaeb75.rlib" "/opt/rustwide/target/debug/deps/libtokio-eb8efc2a2c230c44.rlib" "/opt/rustwide/target/debug/deps/libtokio_udp-65dc2b13771b9866.rlib" "/opt/rustwide/target/debug/deps/libtokio_tcp-42ead25ca695a523.rlib" "/opt/rustwide/target/debug/deps/libtokio_timer-ddeeff56ffe221ae.rlib" "/opt/rustwide/target/debug/deps/libtokio_threadpool-6f8e8197b3e6e982.rlib" "/opt/rustwide/target/debug/deps/librand-7b2b0242d41faa41.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-d3373b6a0c410e4f.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-f6b2ca48c910e106.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-6424bc6e02a01c10.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-f05e812f1f3b4ca0.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-cdc96b1565ef7813.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-2f7a16698471d162.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-ff3f885add095304.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-20e2a06b8628f515.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-a56318a145cd265c.rlib" "/opt/rustwide/target/debug/deps/libnodrop-7b0367911d14ca9a.rlib" "/opt/rustwide/target/debug/deps/libtokio_reactor-cd3dea600e680c63.rlib" "/opt/rustwide/target/debug/deps/libtokio_executor-8ab87b93413cfc04.rlib" "/opt/rustwide/target/debug/deps/libtokio_io-914a1e5cdfc4f48a.rlib" "/opt/rustwide/target/debug/deps/libbytes-004b8db9d3fe2f7f.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-ada7ced86ae694fa.rlib" "/opt/rustwide/target/debug/deps/libfutures-c80c2c7885d72c6d.rlib" "/opt/rustwide/target/debug/deps/libmio-8221f77bf2c1594b.rlib" "/opt/rustwide/target/debug/deps/liblog-9d2a463f4d766796.rlib" "/opt/rustwide/target/debug/deps/libslab-da5f0272085a7861.rlib" "/opt/rustwide/target/debug/deps/libiovec-488109c9aeed8780.rlib" "/opt/rustwide/target/debug/deps/libnet2-ff3a01a59bd7fd55.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-86922dddbd81b29b.rlib" "/opt/rustwide/target/debug/deps/liblazycell-57d7442c475f86a9.rlib" "/opt/rustwide/target/debug/deps/liblibc-01787577ab50ff09.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-62f93208e14fa8f0.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-b2c4dbe979cef5e2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-8b9b66cb3e9f891d.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5998b08bf29f56ac.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-efd1670396ccb585.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6435b9209e888961.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-866e5dfb603b34d2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-75eac3089695b3b4.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-35744537b4825584.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-f7ee5081d96fb2cd.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-5b28479cb639d76c.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-f827473dd3b319fa.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-53f9c299c549c6a9.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-44132fbb3fcc18d3.rlib" "-Wl,-Bdynamic" "-lpcap" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lpcap
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rusty-netconns`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "36ad95b5ba3a8b9dca94981d397008a4e67c10f74289b20d72f1bfd5748cc720"`
[INFO] running `"docker" "rm" "-f" "36ad95b5ba3a8b9dca94981d397008a4e67c10f74289b20d72f1bfd5748cc720"`
[INFO] [stdout] 36ad95b5ba3a8b9dca94981d397008a4e67c10f74289b20d72f1bfd5748cc720