[INFO] cloning repository https://github.com/ostracised3rd/rubiks-cube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ostracised3rd/rubiks-cube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fostracised3rd%2Frubiks-cube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fostracised3rd%2Frubiks-cube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b6f1c0575a85e707e2029189f7998f643c42620
[INFO] checking ostracised3rd/rubiks-cube/0b6f1c0575a85e707e2029189f7998f643c42620 against master#5431404b87967c69438ea1e698edbe96505f0798 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fostracised3rd%2Frubiks-cube" "/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/ostracised3rd/rubiks-cube on toolchain 5431404b87967c69438ea1e698edbe96505f0798
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ostracised3rd/rubiks-cube
[INFO] finished tweaking git repo https://github.com/ostracised3rd/rubiks-cube
[INFO] tweaked toml for git repo https://github.com/ostracised3rd/rubiks-cube written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ostracised3rd/rubiks-cube 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" "+5431404b87967c69438ea1e698edbe96505f0798" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4560caa86f9baf12781bdae7b9e9a5b2490b7cef65bece6543066becf6a35162
[INFO] running `Command { std: "docker" "start" "-a" "4560caa86f9baf12781bdae7b9e9a5b2490b7cef65bece6543066becf6a35162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4560caa86f9baf12781bdae7b9e9a5b2490b7cef65bece6543066becf6a35162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4560caa86f9baf12781bdae7b9e9a5b2490b7cef65bece6543066becf6a35162", kill_on_drop: false }`
[INFO] [stdout] 4560caa86f9baf12781bdae7b9e9a5b2490b7cef65bece6543066becf6a35162
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860439043efaaa538d4b861379d9251c5f7b1d144a609d103b48a48d1755daf1
[INFO] running `Command { std: "docker" "start" "-a" "860439043efaaa538d4b861379d9251c5f7b1d144a609d103b48a48d1755daf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.9.2
[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 num-integer v0.1.45
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[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" "860439043efaaa538d4b861379d9251c5f7b1d144a609d103b48a48d1755daf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860439043efaaa538d4b861379d9251c5f7b1d144a609d103b48a48d1755daf1", kill_on_drop: false }`
[INFO] [stdout] 860439043efaaa538d4b861379d9251c5f7b1d144a609d103b48a48d1755daf1