[INFO] cloning repository https://github.com/rsdsl/dhcp6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rsdsl/dhcp6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsdsl%2Fdhcp6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsdsl%2Fdhcp6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9a92d2c4428423e75db8d8d023feff9190c45aa
[INFO] testing rsdsl/dhcp6 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsdsl%2Fdhcp6" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rsdsl/dhcp6
[INFO] finished tweaking git repo https://github.com/rsdsl/dhcp6
[INFO] tweaked toml for git repo https://github.com/rsdsl/dhcp6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rsdsl/dhcp6 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rsdsl/dhcp6 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b179cf531a369e5c309088ed19d266e6154141132d12e46315d008ae3e6d3688
[INFO] running `Command { std: "docker" "start" "-a" "b179cf531a369e5c309088ed19d266e6154141132d12e46315d008ae3e6d3688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b179cf531a369e5c309088ed19d266e6154141132d12e46315d008ae3e6d3688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b179cf531a369e5c309088ed19d266e6154141132d12e46315d008ae3e6d3688", kill_on_drop: false }`
[INFO] [stdout] b179cf531a369e5c309088ed19d266e6154141132d12e46315d008ae3e6d3688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fa88854a141f72ad50c88b181214e83cc4817d60bd242a73628c3fd28104b1e
[INFO] running `Command { std: "docker" "start" "-a" "7fa88854a141f72ad50c88b181214e83cc4817d60bd242a73628c3fd28104b1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]    Compiling ipnet v2.9.0
[INFO] [stderr]    Compiling dhcproto-macros v0.1.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling sysinfo v0.29.10
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr] error: could not compile `tracing-attributes` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name tracing_attributes --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-attributes-0.1.27/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("async-await"))' -C metadata=b2da0ad078c83b65 -C extra-filename=-897f1bfa45172dbe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7acd4cf30f1a55b9.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-77abab44c8daf8b5.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-6a4bd5b36c2069da.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7fa88854a141f72ad50c88b181214e83cc4817d60bd242a73628c3fd28104b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa88854a141f72ad50c88b181214e83cc4817d60bd242a73628c3fd28104b1e", kill_on_drop: false }`
[INFO] [stdout] 7fa88854a141f72ad50c88b181214e83cc4817d60bd242a73628c3fd28104b1e