[INFO] cloning 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" "clone" "--bare" "https://github.com/zacbrown/rusty-netconn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5
[INFO] testing zacbrown/rusty-netconn against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zacbrown/rusty-netconn on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7/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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1952ffd77da2464e8fd5d216cc85278778ab860fba19e6f123f9553a3067a7c
[INFO] running `Command { std: "docker" "start" "-a" "f1952ffd77da2464e8fd5d216cc85278778ab860fba19e6f123f9553a3067a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1952ffd77da2464e8fd5d216cc85278778ab860fba19e6f123f9553a3067a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1952ffd77da2464e8fd5d216cc85278778ab860fba19e6f123f9553a3067a7c", kill_on_drop: false }`
[INFO] [stdout] f1952ffd77da2464e8fd5d216cc85278778ab860fba19e6f123f9553a3067a7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41530ba3223e0e3fb32edd766e446904cefbf466260e62422d8ca00afa0289c7
[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" "41530ba3223e0e3fb32edd766e446904cefbf466260e62422d8ca00afa0289c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pnet_base v0.21.0
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]    Compiling encode_unicode v0.3.1
[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 tokio-executor v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.5.5
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling pnet_macros_support v0.21.0
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling pnet_datalink v0.21.0
[INFO] [stderr]    Compiling tokio-timer v0.2.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[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 regex v0.2.10
[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 status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.rusty_netconns.behqptz6-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7.ea3uxh0zfaxeonw.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libprettytable-15a4257ba02d9b90.rlib" "/opt/rustwide/target/debug/deps/libencode_unicode-62c3d2e128b07d97.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-0f48dde279d12d5a.rlib" "/opt/rustwide/target/debug/deps/libcsv-ad6e8fe95ea31b7a.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-1348073dc5ce83ba.rlib" "/opt/rustwide/target/debug/deps/libmemchr-de58908924ab89a1.rlib" "/opt/rustwide/target/debug/deps/libatty-46df8994a0cfa7cc.rlib" "/opt/rustwide/target/debug/deps/libterm-38efe9905ea03468.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-af70c978f06e7dc6.rlib" "/opt/rustwide/target/debug/deps/libpnet-a7efcbe588696c78.rlib" "/opt/rustwide/target/debug/deps/libpnet_transport-83ee598fc9f89c9e.rlib" "/opt/rustwide/target/debug/deps/libpnet_packet-452e8aac26572425.rlib" "/opt/rustwide/target/debug/deps/libpnet_macros_support-536d07deba7f0277.rlib" "/opt/rustwide/target/debug/deps/libpnet_datalink-b982d2edc2f62e86.rlib" "/opt/rustwide/target/debug/deps/libpnet_sys-632aeadb0b19885e.rlib" "/opt/rustwide/target/debug/deps/libpnet_base-c06ff353be8893ab.rlib" "/opt/rustwide/target/debug/deps/libipnetwork-2acca4692d89c4f7.rlib" "/opt/rustwide/target/debug/deps/libpcap-0c905024c0f05d0f.rlib" "/opt/rustwide/target/debug/deps/libtokio_core-40119478588c93e2.rlib" "/opt/rustwide/target/debug/deps/libscoped_tls-350ee4a399430034.rlib" "/opt/rustwide/target/debug/deps/libtokio-adbce4cc37819383.rlib" "/opt/rustwide/target/debug/deps/libtokio_udp-05d212e37afdb204.rlib" "/opt/rustwide/target/debug/deps/libtokio_tcp-576495e40cb8ace0.rlib" "/opt/rustwide/target/debug/deps/libtokio_timer-30e8442b1f8b08ea.rlib" "/opt/rustwide/target/debug/deps/libtokio_threadpool-e0d375b6875322ea.rlib" "/opt/rustwide/target/debug/deps/librand-ce37aebcd845e780.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-325befca7c16f9c0.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-465b3304562d5a78.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-62239bd035aeb85e.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-bfd1e7ce79b6528f.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-4fa2c7730d201034.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-2dc0ada3578618fd.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b5b2948724ba9c67.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-669318cd646f5086.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-9a00f0d0e8715679.rlib" "/opt/rustwide/target/debug/deps/libnodrop-41d5879f304932f4.rlib" "/opt/rustwide/target/debug/deps/libtokio_reactor-b29346fc5ca08e47.rlib" "/opt/rustwide/target/debug/deps/libtokio_executor-739b3d6c318805c2.rlib" "/opt/rustwide/target/debug/deps/libtokio_io-353c03a4213e3f07.rlib" "/opt/rustwide/target/debug/deps/libbytes-8eb7345eb002e6f0.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-ece570b250848aff.rlib" "/opt/rustwide/target/debug/deps/libfutures-3da1707a2e49b7a4.rlib" "/opt/rustwide/target/debug/deps/libmio-1f03ce2e927d2458.rlib" "/opt/rustwide/target/debug/deps/liblog-8bbe1a48a2573c56.rlib" "/opt/rustwide/target/debug/deps/libslab-ad3ee0f22d6e2367.rlib" "/opt/rustwide/target/debug/deps/libiovec-88a0fed7ddd77cb3.rlib" "/opt/rustwide/target/debug/deps/libnet2-26029eb5d54a2978.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-d26236ff3a14efb9.rlib" "/opt/rustwide/target/debug/deps/liblazycell-55cf67d0758393d7.rlib" "/opt/rustwide/target/debug/deps/liblibc-c98e454c61dd7cdf.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2420485b9e5ef5e1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-785e3cb61c4b1960.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-087191a88bdaa22d.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9981842c02975178.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6fb405869b015fde.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d05c5c3c56004b7b.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-42d74d2097528b38.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-fb36534c113d2209.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b56b9042c12b6535.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-491902d6cb3e76df.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-61834e0981b8c367.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f78aa99d613a55bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-53ee54cd7fed2c57.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-544ecdbd6cda3c58.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-379cc252b6943a79.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8063eea38dcc5e62.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5b228734afae15ee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d6c7a399d95d173f.rlib" "-Wl,-Bdynamic" "-lpcap" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rusty_netconns-1b84e0721862bcf7" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[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" "41530ba3223e0e3fb32edd766e446904cefbf466260e62422d8ca00afa0289c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41530ba3223e0e3fb32edd766e446904cefbf466260e62422d8ca00afa0289c7", kill_on_drop: false }`
[INFO] [stdout] 41530ba3223e0e3fb32edd766e446904cefbf466260e62422d8ca00afa0289c7
