[INFO] cloning repository https://github.com/ice-hydra/rust-network-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ice-hydra/rust-network-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fice-hydra%2Frust-network-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fice-hydra%2Frust-network-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db58f831e40ba661b3f6385316b7a496520e2806
[INFO] testing ice-hydra/rust-network-programming against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fice-hydra%2Frust-network-programming" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ice-hydra/rust-network-programming on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ice-hydra/rust-network-programming
[INFO] finished tweaking git repo https://github.com/ice-hydra/rust-network-programming
[INFO] tweaked toml for git repo https://github.com/ice-hydra/rust-network-programming written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ice-hydra/rust-network-programming 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_macros_support v0.26.0
[INFO] [stderr]   Downloaded pnet_base v0.26.0
[INFO] [stderr]   Downloaded pnet_transport v0.26.0
[INFO] [stderr]   Downloaded pnet_datalink v0.26.0
[INFO] [stderr]   Downloaded pnet v0.26.0
[INFO] [stderr]   Downloaded pnet_packet v0.26.0
[INFO] [stderr]   Downloaded trust-dns v0.19.7
[INFO] [stderr]   Downloaded trust-dns-server v0.19.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 561866e0eb3e17d20921df9b9e08803f67765e474851a14f779c14337af47007
[INFO] running `Command { std: "docker" "start" "-a" "561866e0eb3e17d20921df9b9e08803f67765e474851a14f779c14337af47007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "561866e0eb3e17d20921df9b9e08803f67765e474851a14f779c14337af47007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561866e0eb3e17d20921df9b9e08803f67765e474851a14f779c14337af47007", kill_on_drop: false }`
[INFO] [stdout] 561866e0eb3e17d20921df9b9e08803f67765e474851a14f779c14337af47007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c47ea09e0a8959d75c3a3eb5a830c553f1603547557c61a7351c80b5e235cf7
[INFO] running `Command { std: "docker" "start" "-a" "8c47ea09e0a8959d75c3a3eb5a830c553f1603547557c61a7351c80b5e235cf7", kill_on_drop: false }`
[INFO] [stderr] warning: using-trust-dns-resolver v0.1.0 (/opt/rustwide/workdir/using-trust-dns-resolver) ignoring invalid dependency `trust-dns` which is missing a lib target
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling tinyvec v1.5.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pnet_base v0.26.0
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling pnet_macros_support v0.26.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling pnet_sys v0.26.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling pnet v0.26.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling using-ipnet v0.1.0 (/opt/rustwide/workdir/using-ipnet)
[INFO] [stderr]    Compiling using-ipaddr v0.1.0 (/opt/rustwide/workdir/using-ipaddr)
[INFO] [stderr]    Compiling tcp-server v0.1.0 (/opt/rustwide/workdir/tcp-server)
[INFO] [stderr]    Compiling tcp-client v0.1.0 (/opt/rustwide/workdir/tcp-client)
[INFO] [stderr]    Compiling udp-server v0.1.0 (/opt/rustwide/workdir/udp-server)
[INFO] [stderr]    Compiling udp-client v0.1.0 (/opt/rustwide/workdir/udp-client)
[INFO] [stderr]    Compiling using-socketaddr v0.1.0 (/opt/rustwide/workdir/using-socketaddr)
[INFO] [stderr]    Compiling using-mio v0.1.0 (/opt/rustwide/workdir/using-mio)
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.26.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr] error: could not compile `syntex_syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syntex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.42.0/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 debuginfo=2 -C metadata=223737eb887080c8 -C extra-filename=-223737eb887080c8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-6547e26f03b52006.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-d24a5143a2cb4e2c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4a62e8d4372f90e0.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-306a29a12f142e2b.rmeta --extern syntex_errors=/opt/rustwide/target/debug/deps/libsyntex_errors-c80a7cbde79d2ae6.rmeta --extern syntex_pos=/opt/rustwide/target/debug/deps/libsyntex_pos-9d9c8bd39c1e5bde.rmeta --extern term=/opt/rustwide/target/debug/deps/libterm-77569b923aaf0569.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-55cfb1a795aa8a88.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8c47ea09e0a8959d75c3a3eb5a830c553f1603547557c61a7351c80b5e235cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c47ea09e0a8959d75c3a3eb5a830c553f1603547557c61a7351c80b5e235cf7", kill_on_drop: false }`
[INFO] [stdout] 8c47ea09e0a8959d75c3a3eb5a830c553f1603547557c61a7351c80b5e235cf7