[INFO] fetching crate mdbook-bibfile-referencing 0.1.0...
[INFO] checking mdbook-bibfile-referencing-0.1.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate mdbook-bibfile-referencing 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mdbook-bibfile-referencing 0.1.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-bibfile-referencing 0.1.0
[INFO] finished tweaking crates.io crate mdbook-bibfile-referencing 0.1.0
[INFO] tweaked toml for crates.io crate mdbook-bibfile-referencing 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mdbook-bibfile-referencing 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 215acf46dd708acd8626ae6ada21a74d25a8dcb4eba67ee8d693a83eff7dada0
[INFO] running `Command { std: "docker" "start" "-a" "215acf46dd708acd8626ae6ada21a74d25a8dcb4eba67ee8d693a83eff7dada0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "215acf46dd708acd8626ae6ada21a74d25a8dcb4eba67ee8d693a83eff7dada0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215acf46dd708acd8626ae6ada21a74d25a8dcb4eba67ee8d693a83eff7dada0", kill_on_drop: false }`
[INFO] [stdout] 215acf46dd708acd8626ae6ada21a74d25a8dcb4eba67ee8d693a83eff7dada0
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 461257fa2443cbe5c440fb5e8a6ecd7342bb2271d95f12392175255bc8388c5c
[INFO] running `Command { std: "docker" "start" "-a" "461257fa2443cbe5c440fb5e8a6ecd7342bb2271d95f12392175255bc8388c5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking shlex v1.0.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking version-compare v0.0.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking pandoc v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking open v1.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pandoc-0.8.5/src/lib.rs:1046:14
[INFO] [stdout]      |
[INFO] [stdout] 1046 |             .intersperse(PATH_DELIMIT)
[INFO] [stdout]      |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]      |
[INFO] [stdout]      = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::iter::Chain<A, B>`
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1034 ~         let path: String = Iterator::intersperse(self
[INFO] [stdout] 1035 +             .latex_path_hint
[INFO] [stdout] 1036 +             .iter()
[INFO] [stdout] 1037 +             .chain(self.pandoc_path_hint.iter())
[INFO] [stdout] 1038 +             .map(|p| p.to_str().expect("non-utf8 path"))
[INFO] [stdout] 1039 +             .chain(PANDOC_PATH.iter().cloned())
[INFO] [stdout]    ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1034 ~         let path: String = Itertools::intersperse(self
[INFO] [stdout] 1035 +             .latex_path_hint
[INFO] [stdout] 1036 +             .iter()
[INFO] [stdout] 1037 +             .chain(self.pandoc_path_hint.iter())
[INFO] [stdout] 1038 +             .map(|p| p.to_str().expect("non-utf8 path"))
[INFO] [stdout] 1039 +             .chain(PANDOC_PATH.iter().cloned())
[INFO] [stdout]    ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pandoc` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "461257fa2443cbe5c440fb5e8a6ecd7342bb2271d95f12392175255bc8388c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461257fa2443cbe5c440fb5e8a6ecd7342bb2271d95f12392175255bc8388c5c", kill_on_drop: false }`
[INFO] [stdout] 461257fa2443cbe5c440fb5e8a6ecd7342bb2271d95f12392175255bc8388c5c