[INFO] fetching crate wimp 0.1.1...
[INFO] building wimp-0.1.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate wimp 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate wimp 0.1.1
[INFO] finished tweaking crates.io crate wimp 0.1.1
[INFO] tweaked toml for crates.io crate wimp 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wimp 0.1.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wimp 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded khronos-egl v4.1.0
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded profiling v1.0.7
[INFO] [stderr]   Downloaded range-alloc v0.1.2
[INFO] [stderr]   Downloaded raw-window-handle v0.5.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.4
[INFO] [stderr]   Downloaded gpu-alloc-types v0.2.0
[INFO] [stderr]   Downloaded async-macros v2.0.0
[INFO] [stderr]   Downloaded async-attributes v1.1.2
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded async-process v1.5.0
[INFO] [stderr]   Downloaded async-io v1.10.0
[INFO] [stderr]   Downloaded roxmltree v0.14.1
[INFO] [stderr]   Downloaded slotmap v1.0.6
[INFO] [stderr]   Downloaded xmlparser v0.13.5
[INFO] [stderr]   Downloaded glow v0.11.2
[INFO] [stderr]   Downloaded wgpu v0.14.0
[INFO] [stderr]   Downloaded shaderc v0.8.0
[INFO] [stderr]   Downloaded polling v2.4.0
[INFO] [stderr]   Downloaded wgpu-hal v0.14.1
[INFO] [stderr]   Downloaded d3d12 v0.5.0
[INFO] [stderr]   Downloaded nix v0.24.2
[INFO] [stderr]   Downloaded gpu-alloc v0.5.3
[INFO] [stderr]   Downloaded gpu-descriptor-types v0.1.1
[INFO] [stderr]   Downloaded wgpu-core v0.14.0
[INFO] [stderr]   Downloaded gpu-descriptor v0.2.3
[INFO] [stderr]   Downloaded naga v0.10.0
[INFO] [stderr]   Downloaded spirv v0.2.0+1.5.4
[INFO] [stderr]   Downloaded wgpu-types v0.14.1
[INFO] [stderr]   Downloaded ash v0.37.0+1.3.209
[INFO] [stderr]   Downloaded metal v0.24.0
[INFO] [stderr]   Downloaded shaderc-sys v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91b10daf66911f9c4ba131670d19b3ba1fb80277b0317404a523e9f94af235b7
[INFO] running `Command { std: "docker" "start" "-a" "91b10daf66911f9c4ba131670d19b3ba1fb80277b0317404a523e9f94af235b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91b10daf66911f9c4ba131670d19b3ba1fb80277b0317404a523e9f94af235b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b10daf66911f9c4ba131670d19b3ba1fb80277b0317404a523e9f94af235b7", kill_on_drop: false }`
[INFO] [stdout] 91b10daf66911f9c4ba131670d19b3ba1fb80277b0317404a523e9f94af235b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec21066d94bca95438b22f3e68566f27aaf5a084578393d3820ecefb7c5b54b
[INFO] running `Command { std: "docker" "start" "-a" "4ec21066d94bca95438b22f3e68566f27aaf5a084578393d3820ecefb7c5b54b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 parking v2.0.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling xmlparser v0.13.5
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling polling v2.4.0
[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" "4ec21066d94bca95438b22f3e68566f27aaf5a084578393d3820ecefb7c5b54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec21066d94bca95438b22f3e68566f27aaf5a084578393d3820ecefb7c5b54b", kill_on_drop: false }`
[INFO] [stdout] 4ec21066d94bca95438b22f3e68566f27aaf5a084578393d3820ecefb7c5b54b