[INFO] fetching crate lightningcss 1.0.0-alpha.43...
[INFO] checking lightningcss-1.0.0-alpha.43 against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113242
[INFO] extracting crate lightningcss 1.0.0-alpha.43 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lightningcss 1.0.0-alpha.43 on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate lightningcss 1.0.0-alpha.43
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lightningcss 1.0.0-alpha.43
[INFO] tweaked toml for crates.io crate lightningcss 1.0.0-alpha.43 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate lightningcss 1.0.0-alpha.43 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v1.0.9
[INFO] [stderr]   Downloaded bitflags v2.2.1
[INFO] [stderr]   Downloaded rkyv_derive v0.7.41
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded predicates v2.1.5
[INFO] [stderr]   Downloaded fs_extra v1.3.0
[INFO] [stderr]   Downloaded lightningcss-derive v1.0.0-alpha.39
[INFO] [stderr]   Downloaded bytecheck_derive v0.6.10
[INFO] [stderr]   Downloaded predicates v3.0.2
[INFO] [stderr]   Downloaded memoffset v0.8.0
[INFO] [stderr]   Downloaded assert_cmd v2.0.10
[INFO] [stderr]   Downloaded assert_fs v1.0.12
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded browserslist-rs v0.12.3
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] [stderr]   Downloaded rkyv v0.7.41
[INFO] [stderr]   Downloaded os_str_bytes v6.5.0
[INFO] [stderr]   Downloaded serde-wasm-bindgen v0.4.5
[INFO] [stderr]   Downloaded bytecheck v0.6.10
[INFO] [stderr]   Downloaded anstyle v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ca2432fe3c310f8ebdd798cd209dc63a1d25b81dfe19a4869f15c514226c875
[INFO] running `Command { std: "docker" "start" "-a" "2ca2432fe3c310f8ebdd798cd209dc63a1d25b81dfe19a4869f15c514226c875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca2432fe3c310f8ebdd798cd209dc63a1d25b81dfe19a4869f15c514226c875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca2432fe3c310f8ebdd798cd209dc63a1d25b81dfe19a4869f15c514226c875", kill_on_drop: false }`
[INFO] [stdout] 2ca2432fe3c310f8ebdd798cd209dc63a1d25b81dfe19a4869f15c514226c875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4c3dfedda49d1560d1b94f23a2c683c7bbec60a9c0b5397545def8b36e3ef68
[INFO] running `Command { std: "docker" "start" "-a" "d4c3dfedda49d1560d1b94f23a2c683c7bbec60a9c0b5397545def8b36e3ef68", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling bytecheck v0.6.10
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]    Compiling rend v0.4.0
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking siphasher v0.3.10
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]     Checking bstr v1.4.0
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling rustix v0.37.8
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling rkyv v0.7.41
[INFO] [stderr]     Checking outref v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking simd-abstraction v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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 serde_json v1.0.95
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking anstyle v0.3.5
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stdout] error: aborting due to 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" "d4c3dfedda49d1560d1b94f23a2c683c7bbec60a9c0b5397545def8b36e3ef68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c3dfedda49d1560d1b94f23a2c683c7bbec60a9c0b5397545def8b36e3ef68", kill_on_drop: false }`
[INFO] [stdout] d4c3dfedda49d1560d1b94f23a2c683c7bbec60a9c0b5397545def8b36e3ef68