[INFO] cloning repository https://github.com/ALinuxPerson/polybar-title-module
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ALinuxPerson/polybar-title-module" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FALinuxPerson%2Fpolybar-title-module", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FALinuxPerson%2Fpolybar-title-module'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6df0ac669003bc4bbe219d37fb0d6f5fb1326fbf
[INFO] checking ALinuxPerson/polybar-title-module against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FALinuxPerson%2Fpolybar-title-module" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ALinuxPerson/polybar-title-module
[INFO] finished tweaking git repo https://github.com/ALinuxPerson/polybar-title-module
[INFO] tweaked toml for git repo https://github.com/ALinuxPerson/polybar-title-module written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ALinuxPerson/polybar-title-module on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ALinuxPerson/polybar-title-module 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.157
[INFO] [stderr]   Downloaded toml_edit v0.19.7
[INFO] [stderr]   Downloaded directories v5.0.0
[INFO] [stderr]   Downloaded pest_generator v2.5.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.93
[INFO] [stderr]   Downloaded pest_derive v2.5.6
[INFO] [stderr]   Downloaded pest_meta v2.5.6
[INFO] [stderr]   Downloaded figment v0.10.8
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.93
[INFO] [stderr]   Downloaded handlebars v4.3.6
[INFO] [stderr]   Downloaded pest v2.5.6
[INFO] [stderr]   Downloaded serde_with v2.3.1
[INFO] [stderr]   Downloaded serde_json v1.0.94
[INFO] [stderr]   Downloaded winnow v0.3.6
[INFO] [stderr]   Downloaded cxx-build v1.0.93
[INFO] [stderr]   Downloaded cxx v1.0.93
[INFO] [stderr]   Downloaded x11rb v0.11.1
[INFO] [stderr]   Downloaded syn v2.0.2
[INFO] [stderr]   Downloaded serde v1.0.157
[INFO] [stderr]   Downloaded serde_with_macros v2.3.1
[INFO] [stderr]   Downloaded x11rb-protocol v0.11.1
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d2d611ef314790378bd8c45abc6526845a4e9979f2002eb56407add3c8db608
[INFO] running `Command { std: "docker" "start" "-a" "8d2d611ef314790378bd8c45abc6526845a4e9979f2002eb56407add3c8db608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d2d611ef314790378bd8c45abc6526845a4e9979f2002eb56407add3c8db608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d2d611ef314790378bd8c45abc6526845a4e9979f2002eb56407add3c8db608", kill_on_drop: false }`
[INFO] [stdout] 8d2d611ef314790378bd8c45abc6526845a4e9979f2002eb56407add3c8db608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 468a7893c9270411a952a313b412550db6dac158423e8c2a1da0bdb43c8da86a
[INFO] running `Command { std: "docker" "start" "-a" "468a7893c9270411a952a313b412550db6dac158423e8c2a1da0bdb43c8da86a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.157
[INFO] [stderr]    Compiling serde v1.0.157
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling figment v0.10.8
[INFO] [stderr]     Checking winnow v0.3.6
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking tracing-log v0.1.3
[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" "468a7893c9270411a952a313b412550db6dac158423e8c2a1da0bdb43c8da86a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "468a7893c9270411a952a313b412550db6dac158423e8c2a1da0bdb43c8da86a", kill_on_drop: false }`
[INFO] [stdout] 468a7893c9270411a952a313b412550db6dac158423e8c2a1da0bdb43c8da86a
