[INFO] cloning repository https://github.com/RossMurr4y/mdbook-pdf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RossMurr4y/mdbook-pdf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRossMurr4y%2Fmdbook-pdf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRossMurr4y%2Fmdbook-pdf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 179515cd3125639820b0c3260d0c6537efb00c2f
[INFO] checking RossMurr4y/mdbook-pdf against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRossMurr4y%2Fmdbook-pdf" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RossMurr4y/mdbook-pdf 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 git repo https://github.com/RossMurr4y/mdbook-pdf
[INFO] finished tweaking git repo https://github.com/RossMurr4y/mdbook-pdf
[INFO] tweaked toml for git repo https://github.com/RossMurr4y/mdbook-pdf written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/RossMurr4y/mdbook-pdf 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 176e2b44c78db1d74369bc6c625fe0c6df049c1033efda0991493d460322be7b
[INFO] running `Command { std: "docker" "start" "-a" "176e2b44c78db1d74369bc6c625fe0c6df049c1033efda0991493d460322be7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "176e2b44c78db1d74369bc6c625fe0c6df049c1033efda0991493d460322be7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176e2b44c78db1d74369bc6c625fe0c6df049c1033efda0991493d460322be7b", kill_on_drop: false }`
[INFO] [stdout] 176e2b44c78db1d74369bc6c625fe0c6df049c1033efda0991493d460322be7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 57e111504fadf0e94349550107bcacd1fae0affcdeded88bd96472625a6b6d35
[INFO] running `Command { std: "docker" "start" "-a" "57e111504fadf0e94349550107bcacd1fae0affcdeded88bd96472625a6b6d35", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking urlencoding v1.3.3
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking shlex v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking gitignore v1.0.7
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking pandoc v0.8.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pandoc-0.8.4/src/lib.rs:1043:14
[INFO] [stdout]      |
[INFO] [stdout] 1043 |             .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] 1031 ~         let path: String = Iterator::intersperse(self
[INFO] [stdout] 1032 +             .latex_path_hint
[INFO] [stdout] 1033 +             .iter()
[INFO] [stdout] 1034 +             .chain(self.pandoc_path_hint.iter())
[INFO] [stdout] 1035 +             .map(|p| p.to_str().expect("non-utf8 path"))
[INFO] [stdout] 1036 +             .chain(PANDOC_PATH.iter().cloned())
[INFO] [stdout]    ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1031 ~         let path: String = Itertools::intersperse(self
[INFO] [stdout] 1032 +             .latex_path_hint
[INFO] [stdout] 1033 +             .iter()
[INFO] [stdout] 1034 +             .chain(self.pandoc_path_hint.iter())
[INFO] [stdout] 1035 +             .map(|p| p.to_str().expect("non-utf8 path"))
[INFO] [stdout] 1036 +             .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" "57e111504fadf0e94349550107bcacd1fae0affcdeded88bd96472625a6b6d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e111504fadf0e94349550107bcacd1fae0affcdeded88bd96472625a6b6d35", kill_on_drop: false }`
[INFO] [stdout] 57e111504fadf0e94349550107bcacd1fae0affcdeded88bd96472625a6b6d35