[INFO] cloning repository https://github.com/racr-rust/racrc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/racr-rust/racrc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracrc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracrc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a71a84fe9febfd4e03781365f4bd31943a305de0
[INFO] testing racr-rust/racrc against beta-2021-09-12 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracrc" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/racr-rust/racrc on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/racr-rust/racrc
[INFO] finished tweaking git repo https://github.com/racr-rust/racrc
[INFO] tweaked toml for git repo https://github.com/racr-rust/racrc written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/racr-rust/racrc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.81
[INFO] [stderr]   Downloaded serde v1.0.81
[INFO] [stderr]   Downloaded block-buffer v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9d88ec7a87673394bfd640504c7806d4f0eb3c6ca2cc2f3fb7b40e64c80bca1
[INFO] running `Command { std: "docker" "start" "-a" "c9d88ec7a87673394bfd640504c7806d4f0eb3c6ca2cc2f3fb7b40e64c80bca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9d88ec7a87673394bfd640504c7806d4f0eb3c6ca2cc2f3fb7b40e64c80bca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d88ec7a87673394bfd640504c7806d4f0eb3c6ca2cc2f3fb7b40e64c80bca1", kill_on_drop: false }`
[INFO] [stdout] c9d88ec7a87673394bfd640504c7806d4f0eb3c6ca2cc2f3fb7b40e64c80bca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3db59757a94eb2f5cd9eacd6925796b6d120b2b0aa996f73983d68b16fa5e5ae
[INFO] running `Command { std: "docker" "start" "-a" "3db59757a94eb2f5cd9eacd6925796b6d120b2b0aa996f73983d68b16fa5e5ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling lalrpop-util v0.16.2
[INFO] [stderr]    Compiling racr v0.1.0 (https://github.com/racr-rust/racr-rust.git?rev=1f8df4bb8685e874bdfbd661c18badd20804b3e7#1f8df4bb)
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling ena v0.10.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling block-buffer v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.2
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.2/src/message/horiz.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |             .intersperse(self.separate)
[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::Map<I, F>`
[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] 22 ~         Iterator::intersperse(self.items
[INFO] [stdout] 23 +             .iter()
[INFO] [stdout] 24 +             .map(|c| c.min_width()), self.separate)
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 22 ~         Itertools::intersperse(self.items
[INFO] [stdout] 23 +             .iter()
[INFO] [stdout] 24 +             .map(|c| c.min_width()), self.separate)
[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 `lalrpop` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3db59757a94eb2f5cd9eacd6925796b6d120b2b0aa996f73983d68b16fa5e5ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db59757a94eb2f5cd9eacd6925796b6d120b2b0aa996f73983d68b16fa5e5ae", kill_on_drop: false }`
[INFO] [stdout] 3db59757a94eb2f5cd9eacd6925796b6d120b2b0aa996f73983d68b16fa5e5ae