[INFO] updating cached repository https://github.com/zacbrown/rusty-netconn
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5
[INFO] testing zacbrown/rusty-netconn against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zacbrown/rusty-netconn on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/zacbrown/rusty-netconn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e1a10c58a3b29af46ac5e72e308a1d01185ea4d3bc6656399bb0ec3941bfaf8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e1a10c58a3b29af46ac5e72e308a1d01185ea4d3bc6656399bb0ec3941bfaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e1a10c58a3b29af46ac5e72e308a1d01185ea4d3bc6656399bb0ec3941bfaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1a10c58a3b29af46ac5e72e308a1d01185ea4d3bc6656399bb0ec3941bfaf8", kill_on_drop: false }`
[INFO] [stdout] 8e1a10c58a3b29af46ac5e72e308a1d01185ea4d3bc6656399bb0ec3941bfaf8
[INFO] running `Command { std: "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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b04031db6b9fafaed08324cef514c416ae2c6b9703bbc3ff5ee0ea6cc6fc13d4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b04031db6b9fafaed08324cef514c416ae2c6b9703bbc3ff5ee0ea6cc6fc13d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling pnet_base v0.21.0
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]    Compiling ipnetwork v0.12.8
[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 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 syntex_pos v0.42.0
[INFO] [stderr]    Compiling pnet_macros_support v0.21.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[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 bytes v0.4.6
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling pnet_datalink v0.21.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[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-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[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 rusty-netconns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let mut stats = {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut stats = {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 217 |         let mut stats = {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let mut stats = {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.rusty_netconns.49wnczj5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927" "/opt/rustwide/target/debug/deps/rusty_netconns-80aba0c98f6cc927.4o7uu1lsuvhbf4em.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libprettytable-bbcb6b1df4f14d14.rlib" "/opt/rustwide/target/debug/deps/libencode_unicode-48d005aa3ec67796.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-2ea69cae54b65af6.rlib" "/opt/rustwide/target/debug/deps/libcsv-795c918c091eb8a2.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-826df4b40c62d022.rlib" "/opt/rustwide/target/debug/deps/libmemchr-d9c9f6e5b2d5eb2f.rlib" "/opt/rustwide/target/debug/deps/libatty-0c8f80e203480c91.rlib" "/opt/rustwide/target/debug/deps/libterm-1f8992a3ae7c8ae4.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-8ff114a7f3d3d608.rlib" "/opt/rustwide/target/debug/deps/libpnet-0cad4c8851cf044a.rlib" "/opt/rustwide/target/debug/deps/libpnet_transport-4abc329ce7c70457.rlib" "/opt/rustwide/target/debug/deps/libpnet_packet-95bbe74e8815c454.rlib" "/opt/rustwide/target/debug/deps/libpnet_macros_support-3e1d9aeed5a979e4.rlib" "/opt/rustwide/target/debug/deps/libpnet_datalink-55a828e83e59a4c8.rlib" "/opt/rustwide/target/debug/deps/libpnet_sys-fbe9780c562412fb.rlib" "/opt/rustwide/target/debug/deps/libpnet_base-40916f5cbf67687f.rlib" "/opt/rustwide/target/debug/deps/libipnetwork-73d135a2d6991157.rlib" "/opt/rustwide/target/debug/deps/libpcap-31b3bc8bf7912ccc.rlib" "/opt/rustwide/target/debug/deps/libtokio_core-e98ea474d220e729.rlib" "/opt/rustwide/target/debug/deps/libscoped_tls-de07324176c8a14a.rlib" "/opt/rustwide/target/debug/deps/libtokio-d8583c98220c40c9.rlib" "/opt/rustwide/target/debug/deps/libtokio_udp-afdf96e5be5902cb.rlib" "/opt/rustwide/target/debug/deps/libtokio_tcp-d8c6eb3ad847811a.rlib" "/opt/rustwide/target/debug/deps/libtokio_timer-61eef1328e5934c4.rlib" "/opt/rustwide/target/debug/deps/libtokio_threadpool-22fb4c343bc7ba86.rlib" "/opt/rustwide/target/debug/deps/librand-b66203c96da03bbd.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-c08e0508bb4b531b.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-891c925d5571e9ac.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-d259a5a37ab2bc09.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-54e8bae6ef792c9b.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-35b70419fc3f560e.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-0771bbc32ad4bd2f.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-06cf571f235fb426.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-eb2b336653a3497c.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-eee4b0dfaf1d5fc7.rlib" "/opt/rustwide/target/debug/deps/libnodrop-6f8bc61a08d6be24.rlib" "/opt/rustwide/target/debug/deps/libtokio_reactor-c82764f96e260b10.rlib" "/opt/rustwide/target/debug/deps/libtokio_executor-b5622456d46908af.rlib" "/opt/rustwide/target/debug/deps/libtokio_io-f96bac2328cf60cf.rlib" "/opt/rustwide/target/debug/deps/libbytes-810ff113cd72691a.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-1084999c43620743.rlib" "/opt/rustwide/target/debug/deps/libfutures-737f6186a632629e.rlib" "/opt/rustwide/target/debug/deps/libmio-3f373af20b4fb03c.rlib" "/opt/rustwide/target/debug/deps/liblog-a6b8a2944644cb1b.rlib" "/opt/rustwide/target/debug/deps/libslab-6f9b7899ef2aefdf.rlib" "/opt/rustwide/target/debug/deps/libiovec-c338afd1c7df6b7c.rlib" "/opt/rustwide/target/debug/deps/libnet2-ddd66835184f0a85.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-c9fbad6ac4100047.rlib" "/opt/rustwide/target/debug/deps/liblazycell-1ecb4c42bdff3e0b.rlib" "/opt/rustwide/target/debug/deps/liblibc-451497d73dd9974a.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d66e0ceb8eaec9b8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-9717ec0599b569a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-04369de9ba916647.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-997d622c2e4dbe5c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-0359c4288a5ef89f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-1b25ede22d698ab3.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-37940b486a68e488.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-06b77c27e794c7c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-4d07e02a8df36da1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-fb29e0695c0a0f79.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e16188b4cf97e8bb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5eb391c8dabdee77.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-b0689b528b222bee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ed072ac495e62e7a.rlib" "-Wl,-Bdynamic" "-lpcap" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lpcap
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-netconns`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b04031db6b9fafaed08324cef514c416ae2c6b9703bbc3ff5ee0ea6cc6fc13d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04031db6b9fafaed08324cef514c416ae2c6b9703bbc3ff5ee0ea6cc6fc13d4", kill_on_drop: false }`
[INFO] [stdout] b04031db6b9fafaed08324cef514c416ae2c6b9703bbc3ff5ee0ea6cc6fc13d4