[INFO] cloning repository https://github.com/kbowens/packet-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kbowens/packet-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbowens%2Fpacket-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbowens%2Fpacket-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fce8e3e743a93eaacf418d236912516a74aeda12
[INFO] testing kbowens/packet-chat against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbowens%2Fpacket-chat" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kbowens/packet-chat
[INFO] finished tweaking git repo https://github.com/kbowens/packet-chat
[INFO] tweaked toml for git repo https://github.com/kbowens/packet-chat written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kbowens/packet-chat on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kbowens/packet-chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb
[INFO] running `Command { std: "docker" "start" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling fst v0.3.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling inotify-sys v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling snap v1.0.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling combine v4.4.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling levenshtein_automata v0.1.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling mio v0.7.5
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling bitpacking v0.8.2
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling fail v0.3.0
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tantivy-fst v0.2.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling atomicwrites v0.2.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr] error: could not compile `combine` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.99.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name combine --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/combine-4.4.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="bytes_05"' --cfg 'feature="default"' --cfg 'feature="pin-project"' --cfg 'feature="pin-project-lite"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes_05", "default", "futures-03", "futures-io-03", "futures-util-03", "mp4", "pin-project", "pin-project-lite", "regex", "std", "tokio-02", "tokio-02-dep", "tokio-03", "tokio-03-dep"))' -C metadata=123bfe7dfabe586e -C extra-filename=-f0a1ef6bba975c17 --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern bytes_05=/opt/rustwide/target/release/deps/libbytes-9eb7a2bc73dde625.rmeta --extern memchr=/opt/rustwide/target/release/deps/libmemchr-c942485ff1157a86.rmeta --extern pin_project_lite=/opt/rustwide/target/release/deps/libpin_project_lite-73ccdfd4d403b34d.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.99.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.48/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=b9f40aec23b5ae59 -C extra-filename=-10a63992e11e4eef --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern proc_macro2=/opt/rustwide/target/release/deps/libproc_macro2-70b66c92f5334bb3.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-6fd920f460d84e6b.rmeta --extern unicode_xid=/opt/rustwide/target/release/deps/libunicode_xid-0e9f59e25678d011.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb", kill_on_drop: false }`
[INFO] [stdout] aa1cd23f073fdbee1e7f91c4c4518575c7cdbc32545fff94fa88c504277187cb
