[INFO] cloning repository https://github.com/MixedMatched/fruity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MixedMatched/fruity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMixedMatched%2Ffruity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMixedMatched%2Ffruity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce06e6e6a299fbb06e902d16245bc7218606a186
[INFO] checking MixedMatched/fruity/ce06e6e6a299fbb06e902d16245bc7218606a186 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMixedMatched%2Ffruity" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MixedMatched/fruity on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MixedMatched/fruity
[INFO] finished tweaking git repo https://github.com/MixedMatched/fruity
[INFO] tweaked toml for git repo https://github.com/MixedMatched/fruity written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MixedMatched/fruity 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" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/nw-rs/citrus-cas`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.10
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1fb0304d7063cbc98ece4b8d47d5638165a68879098bc996ec6bde79efdb90f
[INFO] running `Command { std: "docker" "start" "-a" "e1fb0304d7063cbc98ece4b8d47d5638165a68879098bc996ec6bde79efdb90f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1fb0304d7063cbc98ece4b8d47d5638165a68879098bc996ec6bde79efdb90f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fb0304d7063cbc98ece4b8d47d5638165a68879098bc996ec6bde79efdb90f", kill_on_drop: false }`
[INFO] [stdout] e1fb0304d7063cbc98ece4b8d47d5638165a68879098bc996ec6bde79efdb90f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b7b2eb094c9e908757c2bae447b7c193922049345cbb65e9429597af07d8b3f
[INFO] running `Command { std: "docker" "start" "-a" "3b7b2eb094c9e908757c2bae447b7c193922049345cbb65e9429597af07d8b3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling bumpalo v3.11.1
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 wasm-bindgen v0.2.83
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[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" "3b7b2eb094c9e908757c2bae447b7c193922049345cbb65e9429597af07d8b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b7b2eb094c9e908757c2bae447b7c193922049345cbb65e9429597af07d8b3f", kill_on_drop: false }`
[INFO] [stdout] 3b7b2eb094c9e908757c2bae447b7c193922049345cbb65e9429597af07d8b3f