[INFO] cloning repository https://github.com/kaikalii/uiua
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaikalii/uiua" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaikalii%2Fuiua", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaikalii%2Fuiua'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c49e24b51af385c602e82e21fd61554def80799
[INFO] testing kaikalii/uiua 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%2Fkaikalii%2Fuiua" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kaikalii/uiua 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/kaikalii/uiua
[INFO] finished tweaking git repo https://github.com/kaikalii/uiua
[INFO] tweaked toml for git repo https://github.com/kaikalii/uiua written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/kaikalii/uiua 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 96f7a2361d68eb76be87b1ad09eb59c6ad26399a6af5c78ee5985b5d100acc53
[INFO] running `Command { std: "docker" "start" "-a" "96f7a2361d68eb76be87b1ad09eb59c6ad26399a6af5c78ee5985b5d100acc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96f7a2361d68eb76be87b1ad09eb59c6ad26399a6af5c78ee5985b5d100acc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f7a2361d68eb76be87b1ad09eb59c6ad26399a6af5c78ee5985b5d100acc53", kill_on_drop: false }`
[INFO] [stdout] 96f7a2361d68eb76be87b1ad09eb59c6ad26399a6af5c78ee5985b5d100acc53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 218522088ad3348a9c9e5aaea3fe78c2bac4431ca908d4ae146b154d651311db
[INFO] running `Command { std: "docker" "start" "-a" "218522088ad3348a9c9e5aaea3fe78c2bac4431ca908d4ae146b154d651311db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling open v1.4.0
[INFO] [stderr]    Compiling pathdiff v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling unicode_reader v1.0.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling inotify-sys v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling ctrlc v3.1.7
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling structopt v0.3.20
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling rmp-serde v0.14.4
[INFO] [stderr]    Compiling uiua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/ast.rs:157:26
[INFO] [stdout]     |
[INFO] [stdout] 157 |                         .intersperse(" ".into())
[INFO] [stdout]     |                          ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 154 ~                     std::iter::Iterator::intersperse(types
[INFO] [stdout] 155 +                         .iter()
[INFO] [stdout] 156 +                         .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 154 ~                     itertools::Itertools::intersperse(types
[INFO] [stdout] 155 +                         .iter()
[INFO] [stdout] 156 +                         .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> src/codebase.rs:479:14
[INFO] [stdout]      |
[INFO] [stdout] 479  |             .intersperse(" | ".normal())
[INFO] [stdout]      |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]      |
[INFO] [stdout]      = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] note: candidate #3 is defined in the trait `rayon::iter::ParallelIterator`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rayon-1.5.0/src/iter/mod.rs:2115:5
[INFO] [stdout]      |
[INFO] [stdout] 2115 | /     fn intersperse(self, element: Self::Item) -> Intersperse<Self>
[INFO] [stdout] 2116 | |     where
[INFO] [stdout] 2117 | |         Self::Item: Clone,
[INFO] [stdout]      | |__________________________^
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 476  ~         std::iter::Iterator::intersperse(self.names
[INFO] [stdout] 477  +             .iter()
[INFO] [stdout] 478  +             .map(|ident| ident.to_string().bright_white()), " | ".normal())
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 476  ~         itertools::Itertools::intersperse(self.names
[INFO] [stdout] 477  +             .iter()
[INFO] [stdout] 478  +             .map(|ident| ident.to_string().bright_white()), " | ".normal())
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #3
[INFO] [stdout]      |
[INFO] [stdout] 476  ~         rayon::iter::ParallelIterator::intersperse(self.names
[INFO] [stdout] 477  +             .iter()
[INFO] [stdout] 478  +             .map(|ident| ident.to_string().bright_white()), " | ".normal())
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/lex.rs:431:18
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 .intersperse(&format!("\u{0}{}\u{0}", split))
[INFO] [stdout]     |                  ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::str::SplitN<'a, P>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 430 |             std::iter::Iterator::intersperse(s.splitn(n.unwrap_or(10000), split), &format!("\u{0}{}\u{0}", split))
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 430 |             itertools::Itertools::intersperse(s.splitn(n.unwrap_or(10000), split), &format!("\u{0}{}\u{0}", split))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/resolve.rs:208:30
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   .intersperse(", ")
[INFO] [stdout]     |                        ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 205 ~                         std::iter::Iterator::intersperse(fields
[INFO] [stdout] 206 +                             .iter()
[INFO] [stdout] 207 +                             .map(|field| field.name.as_str()), ", ")
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 205 ~                         itertools::Itertools::intersperse(fields
[INFO] [stdout] 206 +                             .iter()
[INFO] [stdout] 207 +                             .map(|field| field.name.as_str()), ", ")
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/resolve.rs:646:10
[INFO] [stdout]     |
[INFO] [stdout] 646 |         .intersperse(" ".into())
[INFO] [stdout]     |          ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 643 ~     std::iter::Iterator::intersperse(types
[INFO] [stdout] 644 +         .iter()
[INFO] [stdout] 645 +         .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 643 ~     itertools::Itertools::intersperse(types
[INFO] [stdout] 644 +         .iter()
[INFO] [stdout] 645 +         .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/types.rs:321:18
[INFO] [stdout]     |
[INFO] [stdout] 321 |                 .intersperse(" ".into())
[INFO] [stdout]     |                  ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 318 ~             let list = std::iter::Iterator::intersperse(self
[INFO] [stdout] 319 +                 .iter()
[INFO] [stdout] 320 +                 .map(|ty| ty.to_string()), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 318 ~             let list = itertools::Itertools::intersperse(self
[INFO] [stdout] 319 +                 .iter()
[INFO] [stdout] 320 +                 .map(|ty| ty.to_string()), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/types.rs:422:22
[INFO] [stdout]     |
[INFO] [stdout] 422 |                     .intersperse(" ".into())
[INFO] [stdout]     |                      ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 419 ~                 std::iter::Iterator::intersperse(types
[INFO] [stdout] 420 +                     .iter()
[INFO] [stdout] 421 +                     .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 419 ~                 itertools::Itertools::intersperse(types
[INFO] [stdout] 420 +                     .iter()
[INFO] [stdout] 421 +                     .map(ToString::to_string), " ".into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]   --> src/codebase.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use itertools::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/lex.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/resolve.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uiua` due to 8 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "218522088ad3348a9c9e5aaea3fe78c2bac4431ca908d4ae146b154d651311db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218522088ad3348a9c9e5aaea3fe78c2bac4431ca908d4ae146b154d651311db", kill_on_drop: false }`
[INFO] [stdout] 218522088ad3348a9c9e5aaea3fe78c2bac4431ca908d4ae146b154d651311db