[INFO] fetching crate cueball-manatee-primary-resolver 0.5.1...
[INFO] testing cueball-manatee-primary-resolver-0.5.1 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate cueball-manatee-primary-resolver 0.5.1 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate cueball-manatee-primary-resolver 0.5.1 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 cueball-manatee-primary-resolver 0.5.1
[INFO] finished tweaking crates.io crate cueball-manatee-primary-resolver 0.5.1
[INFO] tweaked toml for crates.io crate cueball-manatee-primary-resolver 0.5.1 written to /workspace/builds/worker-59/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] 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-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] cf3b580c98e6a596c57d290eef7a3c85b0a42a0487cbde7cfb1d0711d01808ee
[INFO] running `Command { std: "docker" "start" "-a" "cf3b580c98e6a596c57d290eef7a3c85b0a42a0487cbde7cfb1d0711d01808ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3b580c98e6a596c57d290eef7a3c85b0a42a0487cbde7cfb1d0711d01808ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3b580c98e6a596c57d290eef7a3c85b0a42a0487cbde7cfb1d0711d01808ee", kill_on_drop: false }`
[INFO] [stdout] cf3b580c98e6a596c57d290eef7a3c85b0a42a0487cbde7cfb1d0711d01808ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] c28180d438b6a74c72fa0e1e354c0f644fec422f5a0b703511b00efe3ddfde63
[INFO] running `Command { std: "docker" "start" "-a" "c28180d438b6a74c72fa0e1e354c0f644fec422f5a0b703511b00efe3ddfde63", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cueball-manatee-primary-resolver v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/lib.rs:188:14
[INFO] [stdout]     |
[INFO] [stdout] 188 |             .intersperse(String::from(","))
[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] 185 ~         Iterator::intersperse(self.0
[INFO] [stdout] 186 +             .iter()
[INFO] [stdout] 187 +             .map(|x| x.to_string()), String::from(","))
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 185 ~         Itertools::intersperse(self.0
[INFO] [stdout] 186 +             .iter()
[INFO] [stdout] 187 +             .map(|x| x.to_string()), String::from(","))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | use itertools::Itertools;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning 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 `cueball-manatee-primary-resolver` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c28180d438b6a74c72fa0e1e354c0f644fec422f5a0b703511b00efe3ddfde63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28180d438b6a74c72fa0e1e354c0f644fec422f5a0b703511b00efe3ddfde63", kill_on_drop: false }`
[INFO] [stdout] c28180d438b6a74c72fa0e1e354c0f644fec422f5a0b703511b00efe3ddfde63