[INFO] cloning repository https://github.com/stefan-jieanu/ember
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stefan-jieanu/ember" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefan-jieanu%2Fember", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefan-jieanu%2Fember'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40ad9bbad42efde22d46be6b2e45c2e80dcbd847
[INFO] checking stefan-jieanu/ember against try#e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837 for pr-143619
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefan-jieanu%2Fember" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stefan-jieanu/ember
[INFO] finished tweaking git repo https://github.com/stefan-jieanu/ember
[INFO] tweaked toml for git repo https://github.com/stefan-jieanu/ember written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stefan-jieanu/ember on toolchain e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stefan-jieanu/ember 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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml-rs v0.8.11
[INFO] [stderr]   Downloaded toml_edit v0.19.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1105f0bbf9c332d9738d0d678efd354b7dd57fcfcc235fa9239f12b83f49196b
[INFO] running `Command { std: "docker" "start" "-a" "1105f0bbf9c332d9738d0d678efd354b7dd57fcfcc235fa9239f12b83f49196b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1105f0bbf9c332d9738d0d678efd354b7dd57fcfcc235fa9239f12b83f49196b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1105f0bbf9c332d9738d0d678efd354b7dd57fcfcc235fa9239f12b83f49196b", kill_on_drop: false }`
[INFO] [stdout] 1105f0bbf9c332d9738d0d678efd354b7dd57fcfcc235fa9239f12b83f49196b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d427036e2a8d930ff2ecd6e454ffc42cd1ffcc3901c2d8e62929180eefef7bf
[INFO] running `Command { std: "docker" "start" "-a" "1d427036e2a8d930ff2ecd6e454ffc42cd1ffcc3901c2d8e62929180eefef7bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling xml-rs v0.8.11
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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 wayland-sys v0.29.5
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]     Checking vec_map v0.8.2
[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" "1d427036e2a8d930ff2ecd6e454ffc42cd1ffcc3901c2d8e62929180eefef7bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d427036e2a8d930ff2ecd6e454ffc42cd1ffcc3901c2d8e62929180eefef7bf", kill_on_drop: false }`
[INFO] [stdout] 1d427036e2a8d930ff2ecd6e454ffc42cd1ffcc3901c2d8e62929180eefef7bf