[INFO] fetching crate gfuckw 0.2.7...
[INFO] checking gfuckw-0.2.7 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate gfuckw 0.2.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate gfuckw 0.2.7 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gfuckw 0.2.7
[INFO] finished tweaking crates.io crate gfuckw 0.2.7
[INFO] tweaked toml for crates.io crate gfuckw 0.2.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate gfuckw 0.2.7 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" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ffbeffe694f6b6d481ebb23f86ce88cab6607b753a2ab862fa46054b1774811
[INFO] running `Command { std: "docker" "start" "-a" "1ffbeffe694f6b6d481ebb23f86ce88cab6607b753a2ab862fa46054b1774811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffbeffe694f6b6d481ebb23f86ce88cab6607b753a2ab862fa46054b1774811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffbeffe694f6b6d481ebb23f86ce88cab6607b753a2ab862fa46054b1774811", kill_on_drop: false }`
[INFO] [stdout] 1ffbeffe694f6b6d481ebb23f86ce88cab6607b753a2ab862fa46054b1774811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b5da52f5257aaed96ee8db04a8c119e7df28492c8f76a62c515b4a26afe0083
[INFO] running `Command { std: "docker" "start" "-a" "8b5da52f5257aaed96ee8db04a8c119e7df28492c8f76a62c515b4a26afe0083", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling async-io v1.9.0
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling async-net v1.7.0
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling async-process v1.5.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.44/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8b5da52f5257aaed96ee8db04a8c119e7df28492c8f76a62c515b4a26afe0083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5da52f5257aaed96ee8db04a8c119e7df28492c8f76a62c515b4a26afe0083", kill_on_drop: false }`
[INFO] [stdout] 8b5da52f5257aaed96ee8db04a8c119e7df28492c8f76a62c515b4a26afe0083
