[INFO] cloning repository https://github.com/luluco250/perfect-scale
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luluco250/perfect-scale" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluco250%2Fperfect-scale", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluco250%2Fperfect-scale'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6894c0a2e9f5a3ad13bb04482742ee2e0866e90
[INFO] checking luluco250/perfect-scale/a6894c0a2e9f5a3ad13bb04482742ee2e0866e90 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluluco250%2Fperfect-scale" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luluco250/perfect-scale
[INFO] finished tweaking git repo https://github.com/luluco250/perfect-scale
[INFO] tweaked toml for git repo https://github.com/luluco250/perfect-scale written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luluco250/perfect-scale on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luluco250/perfect-scale 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strict-num v0.1.0
[INFO] [stderr]   Downloaded calloop v0.10.5
[INFO] [stderr]   Downloaded bitflags v2.2.1
[INFO] [stderr]   Downloaded wgpu-types v0.16.0
[INFO] [stderr]   Downloaded png v0.17.8
[INFO] [stderr]   Downloaded glow v0.12.1
[INFO] [stderr]   Downloaded wgpu v0.16.0
[INFO] [stderr]   Downloaded ttf-parser v0.19.0
[INFO] [stderr]   Downloaded wgpu-core v0.16.0
[INFO] [stderr]   Downloaded wgpu-hal v0.16.0
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded android-activity v0.4.1
[INFO] [stderr]   Downloaded rustix v0.37.14
[INFO] [stderr]   Downloaded winit v0.28.3
[INFO] [stderr]   Downloaded naga v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.4
[INFO] [stderr]   Downloaded orbclient v0.3.44
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6862f05c4abc72e61a8ee5735ec4449a2fa0a16e03219c8359989f975b28291
[INFO] running `Command { std: "docker" "start" "-a" "c6862f05c4abc72e61a8ee5735ec4449a2fa0a16e03219c8359989f975b28291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6862f05c4abc72e61a8ee5735ec4449a2fa0a16e03219c8359989f975b28291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6862f05c4abc72e61a8ee5735ec4449a2fa0a16e03219c8359989f975b28291", kill_on_drop: false }`
[INFO] [stdout] c6862f05c4abc72e61a8ee5735ec4449a2fa0a16e03219c8359989f975b28291
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e735973336b8e54c205f61da82d570f84aaf8bcce9494ec163b9abd165754ac
[INFO] running `Command { std: "docker" "start" "-a" "4e735973336b8e54c205f61da82d570f84aaf8bcce9494ec163b9abd165754ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 lock_api v0.4.9
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[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" "4e735973336b8e54c205f61da82d570f84aaf8bcce9494ec163b9abd165754ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e735973336b8e54c205f61da82d570f84aaf8bcce9494ec163b9abd165754ac", kill_on_drop: false }`
[INFO] [stdout] 4e735973336b8e54c205f61da82d570f84aaf8bcce9494ec163b9abd165754ac