[INFO] cloning repository https://github.com/muxinyu1/gbn-sender-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muxinyu1/gbn-sender-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuxinyu1%2Fgbn-sender-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuxinyu1%2Fgbn-sender-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2123b6913a36601489fc2b49cce4d01d93e9ae4
[INFO] checking muxinyu1/gbn-sender-rust against master#08cd08fbef8c6663b052d8d9e4930d5696cbb8a7 for 150662-leaf-spurious
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuxinyu1%2Fgbn-sender-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/muxinyu1/gbn-sender-rust
[INFO] finished tweaking git repo https://github.com/muxinyu1/gbn-sender-rust
[INFO] tweaked toml for git repo https://github.com/muxinyu1/gbn-sender-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/muxinyu1/gbn-sender-rust on toolchain 08cd08fbef8c6663b052d8d9e4930d5696cbb8a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/muxinyu1/gbn-sender-rust 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" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "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 windows-targets v0.48.0
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded debug-helper v0.3.13
[INFO] [stderr]   Downloaded itoa v1.0.6
[INFO] [stderr]   Downloaded tokio-macros v2.1.0
[INFO] [stderr]   Downloaded hermit-abi v0.2.6
[INFO] [stderr]   Downloaded lock_api v0.4.9
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded ryu v1.0.13
[INFO] [stderr]   Downloaded crc-any v2.4.3
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded serde_json v1.0.96
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded bytes v1.4.0
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded smallvec v1.10.0
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded parking_lot v0.12.1
[INFO] [stderr]   Downloaded socket2 v0.4.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded wasi v0.11.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.7
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.1
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.0
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.0
[INFO] [stderr]   Downloaded tokio v1.28.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.0
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6cd32fd4317cf2e73acc564492231c5c8040cd786a770fa6bff5aa307407ec1
[INFO] running `Command { std: "docker" "start" "-a" "b6cd32fd4317cf2e73acc564492231c5c8040cd786a770fa6bff5aa307407ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6cd32fd4317cf2e73acc564492231c5c8040cd786a770fa6bff5aa307407ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6cd32fd4317cf2e73acc564492231c5c8040cd786a770fa6bff5aa307407ec1", kill_on_drop: false }`
[INFO] [stdout] b6cd32fd4317cf2e73acc564492231c5c8040cd786a770fa6bff5aa307407ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4e947502c0b25511bade692af2dbf5baae67c9d0b27af2a8c76ef5e47231d22
[INFO] running `Command { std: "docker" "start" "-a" "e4e947502c0b25511bade692af2dbf5baae67c9d0b27af2a8c76ef5e47231d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking debug-helper v0.3.13
[INFO] [stderr]     Checking crc-any v2.4.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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] [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" "e4e947502c0b25511bade692af2dbf5baae67c9d0b27af2a8c76ef5e47231d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e947502c0b25511bade692af2dbf5baae67c9d0b27af2a8c76ef5e47231d22", kill_on_drop: false }`
[INFO] [stdout] e4e947502c0b25511bade692af2dbf5baae67c9d0b27af2a8c76ef5e47231d22