[INFO] fetching crate fall 0.1.2...
[INFO] testing fall-0.1.2 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate fall 0.1.2 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate fall 0.1.2 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 crates.io crate fall 0.1.2
[INFO] finished tweaking crates.io crate fall 0.1.2
[INFO] tweaked toml for crates.io crate fall 0.1.2 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 942e828e260d29dbc8707303b052fbcc6b52e12ee4fc2bf0c674292d0499efb1
[INFO] running `Command { std: "docker" "start" "-a" "942e828e260d29dbc8707303b052fbcc6b52e12ee4fc2bf0c674292d0499efb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "942e828e260d29dbc8707303b052fbcc6b52e12ee4fc2bf0c674292d0499efb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942e828e260d29dbc8707303b052fbcc6b52e12ee4fc2bf0c674292d0499efb1", kill_on_drop: false }`
[INFO] [stdout] 942e828e260d29dbc8707303b052fbcc6b52e12ee4fc2bf0c674292d0499efb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] e9cc32b0e8c49311da50bfa85d4ab737603e0ee79e5c69f95ce35642d4534eed
[INFO] running `Command { std: "docker" "start" "-a" "e9cc32b0e8c49311da50bfa85d4ab737603e0ee79e5c69f95ce35642d4534eed", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling frunk_core v0.2.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.2
[INFO] [stderr]    Compiling frunk_derives v0.2.4
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling frunk_proc_macros v0.0.2
[INFO] [stderr]    Compiling frunk v0.2.4
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.3/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" "e9cc32b0e8c49311da50bfa85d4ab737603e0ee79e5c69f95ce35642d4534eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9cc32b0e8c49311da50bfa85d4ab737603e0ee79e5c69f95ce35642d4534eed", kill_on_drop: false }`
[INFO] [stdout] e9cc32b0e8c49311da50bfa85d4ab737603e0ee79e5c69f95ce35642d4534eed