[INFO] fetching crate distance-field 0.2.0...
[INFO] checking distance-field-0.2.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate distance-field 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate distance-field 0.2.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate distance-field 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate distance-field 0.2.0
[INFO] tweaked toml for crates.io crate distance-field 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate distance-field 0.2.0 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.2.1
[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded symbolic-common v9.2.1
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded spiral v0.2.0
[INFO] [stderr]   Downloaded pprof v0.10.1
[INFO] [stderr]   Downloaded inferno v0.11.9
[INFO] [stderr]   Downloaded quick-xml v0.23.1
[INFO] [stderr]   Downloaded image v0.24.4
[INFO] [stderr]   Downloaded symbolic-demangle v9.2.1
[INFO] [stderr]   Downloaded exr v1.5.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.6
[INFO] [stderr]   Downloaded half v2.1.0
[INFO] [stderr]   Downloaded findshlibs v0.10.2
[INFO] [stderr]   Downloaded memmap2 v0.5.7
[INFO] [stderr]   Downloaded tiff v0.7.3
[INFO] [stderr]   Downloaded num-format v0.4.0
[INFO] [stderr]   Downloaded wyz v0.5.0
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8235fd9d2cc2a0ccc5c4bcce127fc13967e2ad096240026cb93b3592b6b117b4
[INFO] running `Command { std: "docker" "start" "-a" "8235fd9d2cc2a0ccc5c4bcce127fc13967e2ad096240026cb93b3592b6b117b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8235fd9d2cc2a0ccc5c4bcce127fc13967e2ad096240026cb93b3592b6b117b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8235fd9d2cc2a0ccc5c4bcce127fc13967e2ad096240026cb93b3592b6b117b4", kill_on_drop: false }`
[INFO] [stdout] 8235fd9d2cc2a0ccc5c4bcce127fc13967e2ad096240026cb93b3592b6b117b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f15b5ed11dd92a3fe9e80cb4e9074c27524a4c574204028ca03fbb4fef173a
[INFO] running `Command { std: "docker" "start" "-a" "17f15b5ed11dd92a3fe9e80cb4e9074c27524a4c574204028ca03fbb4fef173a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking uuid v1.2.1
[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]     Checking futures-sink v0.3.24
[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" "17f15b5ed11dd92a3fe9e80cb4e9074c27524a4c574204028ca03fbb4fef173a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f15b5ed11dd92a3fe9e80cb4e9074c27524a4c574204028ca03fbb4fef173a", kill_on_drop: false }`
[INFO] [stdout] 17f15b5ed11dd92a3fe9e80cb4e9074c27524a4c574204028ca03fbb4fef173a
