[INFO] fetching crate backslash-z 0.2.0...
[INFO] checking backslash-z-0.2.0 against master#df1ae0f7dd168513de2d89beb2cb7a95d4fdc118 for pr-159343
[INFO] extracting crate backslash-z 0.2.0 into /workspace/builds/worker-6-tc1/source
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backslash-z 0.2.0 on toolchain df1ae0f7dd168513de2d89beb2cb7a95d4fdc118
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 239 packages to latest compatible versions
[INFO] [stderr]       Adding daumdic v0.6.1 (available: v0.8.0)
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[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.33)
[INFO] [stderr]       Adding howto v0.2.1 (available: v0.4.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded howto v0.2.1
[INFO] [stderr]   Downloaded tokio-uds v0.2.7
[INFO] [stderr]   Downloaded tokio-timer v0.2.13
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[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
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[INFO] [stderr]   Downloaded procedural-masquerade v0.1.7
[INFO] [stderr]   Downloaded cssparser-macros v0.3.6
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[INFO] [stderr]   Downloaded scraper v0.9.2
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[INFO] [stderr]   Downloaded tokio-fs v0.1.7
[INFO] [stderr]   Downloaded selectors v0.20.0
[INFO] [stderr]   Downloaded cssparser v0.24.1
[INFO] [stderr]   Downloaded string_cache v0.7.5
[INFO] [stderr]   Downloaded tokio-buf v0.1.1
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[INFO] [stderr]   Downloaded publicsuffix v1.5.6
[INFO] [stderr]   Downloaded scraper v0.10.1
[INFO] [stderr]   Downloaded daummap v0.2.2
[INFO] [stderr]   Downloaded daumdic v0.6.1
[INFO] [stderr]   Downloaded airkorea v0.4.3
[INFO] [stderr]   Downloaded cookie v0.12.0
[INFO] [stderr]   Downloaded selectors v0.21.0
[INFO] [stderr]   Downloaded cssparser v0.25.9
[INFO] [stderr]   Downloaded reqwest v0.9.24
[INFO] [stderr]   Downloaded http v0.1.21
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1
[INFO] running `Command { std: "docker" "start" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cssparser-macros v0.3.6
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[INFO] [stderr]    Compiling cssparser v0.25.9
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[INFO] [stderr]     Checking zerofrom v0.1.8
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[INFO] [stderr]    Compiling cssparser v0.24.1
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[INFO] [stderr]    Compiling markup5ever v0.7.5
[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-1949cf8c6b5b557f/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] [stderr]     Checking icu_provider v2.2.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0506`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cssparser` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1", kill_on_drop: false }`
[INFO] [stdout] 702ed98683e4c054eebb5bc7547a1a9928370d531654238dcd2fb6e59764aeb1
