[INFO] fetching crate backslash-z 0.2.0...
[INFO] checking backslash-z-0.2.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate backslash-z 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate backslash-z 0.2.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backslash-z 0.2.0
[INFO] finished tweaking crates.io crate backslash-z 0.2.0
[INFO] tweaked toml for crates.io crate backslash-z 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.4
[INFO] [stderr]   Downloaded ego-tree v0.6.2
[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
[INFO] [stderr]   Downloaded dtoa-short v0.3.4
[INFO] [stderr]   Downloaded cssparser-macros v0.3.6
[INFO] [stderr]   Downloaded tendril v0.4.3
[INFO] [stderr]   Downloaded try_from v0.3.2
[INFO] [stderr]   Downloaded thin-slice v0.1.1
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.7
[INFO] [stderr]   Downloaded dtoa v1.0.9
[INFO] [stderr]   Downloaded servo_arc v0.1.1
[INFO] [stderr]   Downloaded daummap v0.2.2
[INFO] [stderr]   Downloaded airkorea v0.4.3
[INFO] [stderr]   Downloaded selectors v0.20.0
[INFO] [stderr]   Downloaded html5ever v0.22.5
[INFO] [stderr]   Downloaded markup5ever v0.7.5
[INFO] [stderr]   Downloaded cssparser v0.24.1
[INFO] [stderr]   Downloaded cssparser v0.25.9
[INFO] [stderr]   Downloaded selectors v0.21.0
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded futf v0.1.5
[INFO] [stderr]   Downloaded string_cache v0.7.5
[INFO] [stderr]   Downloaded scraper v0.10.1
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[INFO] [stderr]   Downloaded publicsuffix v1.5.6
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[INFO] [stderr]   Downloaded serde_urlencoded v0.5.5
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 518888f1a27f525ed19a00411062adc651159c6ae1d88695a2f794e10c744478
[INFO] running `Command { std: "docker" "start" "-a" "518888f1a27f525ed19a00411062adc651159c6ae1d88695a2f794e10c744478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "518888f1a27f525ed19a00411062adc651159c6ae1d88695a2f794e10c744478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518888f1a27f525ed19a00411062adc651159c6ae1d88695a2f794e10c744478", kill_on_drop: false }`
[INFO] [stdout] 518888f1a27f525ed19a00411062adc651159c6ae1d88695a2f794e10c744478
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8ab13c8e3b3104d785d34fbf9660c30374ee3f65b5cd62013c41205b5edd450
[INFO] running `Command { std: "docker" "start" "-a" "f8ab13c8e3b3104d785d34fbf9660c30374ee3f65b5cd62013c41205b5edd450", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling rand_xorshift v0.1.1
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[INFO] [stderr]     Checking nodrop v0.1.14
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[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking idna v0.2.3
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[INFO] [stderr]     Checking http v0.1.21
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[INFO] [stderr]     Checking tokio-buf v0.1.1
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[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking uuid v0.7.4
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[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking base64 v0.10.1
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[INFO] [stdout] error[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/cssparser-0.24.1/src/parser.rs:572:17
[INFO] [stdout]     |
[INFO] [stdout] 547 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stdout]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout] 560 |             Some(ref cached_token)
[INFO] [stdout]     |                  ---------------- `self.input.cached_token` is borrowed here
[INFO] [stdout] ...
[INFO] [stdout] 572 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ `self.input.cached_token` is assigned to here but it was already borrowed
[INFO] [stdout] ...
[INFO] [stdout] 584 |         Ok(token)
[INFO] [stdout]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0506`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cssparser` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f8ab13c8e3b3104d785d34fbf9660c30374ee3f65b5cd62013c41205b5edd450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ab13c8e3b3104d785d34fbf9660c30374ee3f65b5cd62013c41205b5edd450", kill_on_drop: false }`
[INFO] [stdout] f8ab13c8e3b3104d785d34fbf9660c30374ee3f65b5cd62013c41205b5edd450
