[INFO] cloning repository https://github.com/hitohata/rust-network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hitohata/rust-network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Frust-network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Frust-network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f27ded6a32e49f18d5cbda0cc1f8d10c9f211230
[INFO] testing hitohata/rust-network against try#bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b for pr-154756
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Frust-network" "/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/hitohata/rust-network
[INFO] finished tweaking git repo https://github.com/hitohata/rust-network
[INFO] tweaked toml for git repo https://github.com/hitohata/rust-network written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hitohata/rust-network on toolchain bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hitohata/rust-network 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" "+bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5593fd59a56de8a2c9c4098c1684d05c258e05f2fe5c9db762dd40a84aeedd95
[INFO] running `Command { std: "docker" "start" "-a" "5593fd59a56de8a2c9c4098c1684d05c258e05f2fe5c9db762dd40a84aeedd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5593fd59a56de8a2c9c4098c1684d05c258e05f2fe5c9db762dd40a84aeedd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5593fd59a56de8a2c9c4098c1684d05c258e05f2fe5c9db762dd40a84aeedd95", kill_on_drop: false }`
[INFO] [stdout] 5593fd59a56de8a2c9c4098c1684d05c258e05f2fe5c9db762dd40a84aeedd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbf43bc9d5c8ad2a2e38c9004e5a59b269820b3b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84872cc07dbfd6c8de96b6b8f77cb78e935146f3fee556365a9bfa2c023590f3
[INFO] running `Command { std: "docker" "start" "-a" "84872cc07dbfd6c8de96b6b8f77cb78e935146f3fee556365a9bfa2c023590f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling pnet_base v0.33.0
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling pnet_macros_support v0.33.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling pnet v0.33.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.14.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "84872cc07dbfd6c8de96b6b8f77cb78e935146f3fee556365a9bfa2c023590f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84872cc07dbfd6c8de96b6b8f77cb78e935146f3fee556365a9bfa2c023590f3", kill_on_drop: false }`
[INFO] [stdout] 84872cc07dbfd6c8de96b6b8f77cb78e935146f3fee556365a9bfa2c023590f3