[INFO] updating cached repository zacbrown/rusty-netconn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zacbrown/rusty-netconn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zacbrown/rusty-netconn" "work/ex/beta-1.38-1/sources/1.37.0/gh/zacbrown/rusty-netconn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zacbrown/rusty-netconn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zacbrown/rusty-netconn" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zacbrown/rusty-netconn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zacbrown/rusty-netconn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5
[INFO] sha for GitHub repo zacbrown/rusty-netconn: f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5
[INFO] validating manifest of zacbrown/rusty-netconn on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zacbrown/rusty-netconn on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zacbrown/rusty-netconn
[INFO] finished frobbing zacbrown/rusty-netconn
[INFO] frobbed toml for zacbrown/rusty-netconn written to work/ex/beta-1.38-1/sources/1.37.0/gh/zacbrown/rusty-netconn/Cargo.toml
[INFO] started frobbing zacbrown/rusty-netconn
[INFO] finished frobbing zacbrown/rusty-netconn
[INFO] frobbed toml for zacbrown/rusty-netconn written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zacbrown/rusty-netconn/Cargo.toml
[INFO] crate zacbrown/rusty-netconn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing zacbrown/rusty-netconn against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zacbrown/rusty-netconn:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3703ed712a38f26d8b5a0c5646e3591df2b07542af922cf08190f78919fb5f7c
[INFO] running `"docker" "start" "-a" "3703ed712a38f26d8b5a0c5646e3591df2b07542af922cf08190f78919fb5f7c"`
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling pnet_base v0.21.0
[INFO] [stderr]    Compiling ipnetwork v0.12.8
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.5.5
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling pnet_sys v0.21.0
[INFO] [stderr]    Compiling atty v0.2.9
[INFO] [stderr]    Compiling pnet_macros_support v0.21.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling pnet_datalink v0.21.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling tokio-timer v0.2.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling regex v0.2.10
[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 rusty-netconns v0.1.0 (/opt/crater/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/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.rusty_netconns.dqptmgva-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7" "/opt/crater/target/debug/deps/rusty_netconns-80dda498901435f7.w7sn16nh7ylt9zu.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libprettytable-31d76262bfd641bb.rlib" "/opt/crater/target/debug/deps/libencode_unicode-c1f05607ca0ea585.rlib" "/opt/crater/target/debug/deps/liblazy_static-8e8f275d3efea5b8.rlib" "/opt/crater/target/debug/deps/libcsv-46ce6494588444ff.rlib" "/opt/crater/target/debug/deps/librustc_serialize-fc0a027b4489f806.rlib" "/opt/crater/target/debug/deps/libmemchr-d66a674f3f32bc4e.rlib" "/opt/crater/target/debug/deps/libatty-5956ba9766859871.rlib" "/opt/crater/target/debug/deps/libterm-4887c3af6eb430fc.rlib" "/opt/crater/target/debug/deps/libunicode_width-a2596a57a5d82eb6.rlib" "/opt/crater/target/debug/deps/libpnet-d41ead4e4d568774.rlib" "/opt/crater/target/debug/deps/libpnet_transport-f0204f126b0117c7.rlib" "/opt/crater/target/debug/deps/libpnet_packet-0812567e8ecfa964.rlib" "/opt/crater/target/debug/deps/libpnet_macros_support-5f2c6a92bbe72077.rlib" "/opt/crater/target/debug/deps/libpnet_datalink-6fb04f0e98a7977c.rlib" "/opt/crater/target/debug/deps/libpnet_sys-eb8b4935cf25026e.rlib" "/opt/crater/target/debug/deps/libpnet_base-0ef7f90f564e371a.rlib" "/opt/crater/target/debug/deps/libipnetwork-be68651717c60d90.rlib" "/opt/crater/target/debug/deps/libpcap-3f4f2c4d6fa3328d.rlib" "/opt/crater/target/debug/deps/libtokio_core-7bd1fc50ab573148.rlib" "/opt/crater/target/debug/deps/libscoped_tls-2860055840773d8c.rlib" "/opt/crater/target/debug/deps/libtokio-ed29b1fce8a60f89.rlib" "/opt/crater/target/debug/deps/libtokio_udp-ee3bed508317a7d7.rlib" "/opt/crater/target/debug/deps/libtokio_tcp-09fc0058d4827239.rlib" "/opt/crater/target/debug/deps/libtokio_timer-cd896ee26bacce8b.rlib" "/opt/crater/target/debug/deps/libtokio_threadpool-134c438007afc935.rlib" "/opt/crater/target/debug/deps/librand-2981ef7bae904deb.rlib" "/opt/crater/target/debug/deps/libnum_cpus-6b47ae9a74817480.rlib" "/opt/crater/target/debug/deps/libcrossbeam_deque-c256c99bc243dc67.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-41f1e2df2cc5805d.rlib" "/opt/crater/target/debug/deps/libcrossbeam_epoch-93eff508aae7ab67.rlib" "/opt/crater/target/debug/deps/libscopeguard-22a7afc64d55fe2c.rlib" "/opt/crater/target/debug/deps/libmemoffset-81f7e9a5af225363.rlib" "/opt/crater/target/debug/deps/liblazy_static-477b2fb8337c6397.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-ac8a9c35e9cc6960.rlib" "/opt/crater/target/debug/deps/libarrayvec-816ea3683ad7852c.rlib" "/opt/crater/target/debug/deps/libnodrop-6d1d7bbbcdf902c1.rlib" "/opt/crater/target/debug/deps/libtokio_reactor-b0d7d3efd808292f.rlib" "/opt/crater/target/debug/deps/libtokio_executor-20533787fb447928.rlib" "/opt/crater/target/debug/deps/libtokio_io-794989c003ccb4e7.rlib" "/opt/crater/target/debug/deps/libbytes-d02968315d5820aa.rlib" "/opt/crater/target/debug/deps/libbyteorder-8d43895f436e64b3.rlib" "/opt/crater/target/debug/deps/libfutures-52593fd28aa0bbc1.rlib" "/opt/crater/target/debug/deps/libmio-6c21ecd4271ee0f2.rlib" "/opt/crater/target/debug/deps/liblog-9f29daffacf088d8.rlib" "/opt/crater/target/debug/deps/libslab-48e86bef9a37542e.rlib" "/opt/crater/target/debug/deps/libiovec-a13d84071852233f.rlib" "/opt/crater/target/debug/deps/libnet2-7b98ed054712317d.rlib" "/opt/crater/target/debug/deps/libcfg_if-168f8d02dd20eb98.rlib" "/opt/crater/target/debug/deps/liblazycell-5f5ce47ba7c14943.rlib" "/opt/crater/target/debug/deps/liblibc-9d78a2d2719851af.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lpcap" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-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
[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" "3703ed712a38f26d8b5a0c5646e3591df2b07542af922cf08190f78919fb5f7c"`
[INFO] running `"docker" "rm" "-f" "3703ed712a38f26d8b5a0c5646e3591df2b07542af922cf08190f78919fb5f7c"`
[INFO] [stdout] 3703ed712a38f26d8b5a0c5646e3591df2b07542af922cf08190f78919fb5f7c