[INFO] cloning repository https://github.com/ImGilbes/asynch_chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImGilbes/asynch_chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImGilbes%2Fasynch_chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImGilbes%2Fasynch_chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c0d57231a2ac96e7ca1ee863f11023a60287539
[INFO] checking ImGilbes/asynch_chat against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImGilbes%2Fasynch_chat" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ImGilbes/asynch_chat
[INFO] finished tweaking git repo https://github.com/ImGilbes/asynch_chat
[INFO] tweaked toml for git repo https://github.com/ImGilbes/asynch_chat written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ImGilbes/asynch_chat on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ImGilbes/asynch_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" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.8.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded num_cpus v1.13.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.83
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.83
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded iana-time-zone v0.1.50
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded ucd-util v0.1.9
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.83
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded lock_api v0.4.9
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded num-integer v0.1.45
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.0
[INFO] [stderr]   Downloaded smallvec v1.10.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.3
[INFO] [stderr]   Downloaded parking_lot_core v0.9.3
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.83
[INFO] [stderr]   Downloaded socket2 v0.4.7
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded parse-zoneinfo v0.1.1
[INFO] [stderr]   Downloaded bytes v1.2.1
[INFO] [stderr]   Downloaded mio v0.8.4
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded js-sys v0.3.60
[INFO] [stderr]   Downloaded bumpalo v3.11.0
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.83
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded chrono-tz v0.4.1
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_i686_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.36.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.36.1
[INFO] [stderr]   Downloaded windows-sys v0.36.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415
[INFO] running `Command { std: "docker" "start" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415", 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" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling ucd-util v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking iana-time-zone v0.1.50
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling tokio v1.21.2
[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" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415", kill_on_drop: false }`
[INFO] [stdout] c1db35e20412d4b9b4628e0f9e2198c5b54cbef83c50df6bfaaa65e268b16415