[INFO] crate backslash-z 0.2.0 is already in cache
[INFO] checking backslash-z-0.2.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate backslash-z 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate backslash-z 0.2.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee7b764a2e02610d6805c07c8ef6cbda066fdf05459c7c331fb1740585048bba
[INFO] running `"docker" "start" "-a" "ee7b764a2e02610d6805c07c8ef6cbda066fdf05459c7c331fb1740585048bba"`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking string_cache_shared v0.3.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr] error[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.24.1/src/parser.rs:572:17
[INFO] [stderr]     |
[INFO] [stderr] 547 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stderr]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] ...
[INFO] [stderr] 560 |             Some(ref cached_token)
[INFO] [stderr]     |                  ---------------- borrow of `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 572 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 584 |         Ok(token)
[INFO] [stderr]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0506`.
[INFO] [stderr] error: could not compile `cssparser`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ee7b764a2e02610d6805c07c8ef6cbda066fdf05459c7c331fb1740585048bba"`
[INFO] running `"docker" "rm" "-f" "ee7b764a2e02610d6805c07c8ef6cbda066fdf05459c7c331fb1740585048bba"`
[INFO] [stdout] ee7b764a2e02610d6805c07c8ef6cbda066fdf05459c7c331fb1740585048bba