[INFO] fetching crate guibuilder 0.1.1...
[INFO] checking guibuilder-0.1.1 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate guibuilder 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate guibuilder 0.1.1 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 guibuilder 0.1.1
[INFO] finished tweaking crates.io crate guibuilder 0.1.1
[INFO] tweaked toml for crates.io crate guibuilder 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate guibuilder 0.1.1 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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 623fa0885b3c35cea9a28d4ad4da9d656a06a442435d26cfa47ad1be0f2eb2e1
[INFO] running `Command { std: "docker" "start" "-a" "623fa0885b3c35cea9a28d4ad4da9d656a06a442435d26cfa47ad1be0f2eb2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "623fa0885b3c35cea9a28d4ad4da9d656a06a442435d26cfa47ad1be0f2eb2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "623fa0885b3c35cea9a28d4ad4da9d656a06a442435d26cfa47ad1be0f2eb2e1", kill_on_drop: false }`
[INFO] [stdout] 623fa0885b3c35cea9a28d4ad4da9d656a06a442435d26cfa47ad1be0f2eb2e1
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3452fb475df4d368e239870dbd6845f1b26ef0496b4c73f5ace40741a175bd0c
[INFO] running `Command { std: "docker" "start" "-a" "3452fb475df4d368e239870dbd6845f1b26ef0496b4c73f5ace40741a175bd0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking concurrent-queue v2.1.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling futures-task v0.3.25
[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" "3452fb475df4d368e239870dbd6845f1b26ef0496b4c73f5ace40741a175bd0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3452fb475df4d368e239870dbd6845f1b26ef0496b4c73f5ace40741a175bd0c", kill_on_drop: false }`
[INFO] [stdout] 3452fb475df4d368e239870dbd6845f1b26ef0496b4c73f5ace40741a175bd0c
