[INFO] fetching crate encrypt-rs 0.3.7...
[INFO] testing encrypt-rs-0.3.7 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate encrypt-rs 0.3.7 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate encrypt-rs 0.3.7 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 encrypt-rs 0.3.7
[INFO] finished tweaking crates.io crate encrypt-rs 0.3.7
[INFO] tweaked toml for crates.io crate encrypt-rs 0.3.7 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate encrypt-rs 0.3.7 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mktemp v0.4.0
[INFO] [stderr]   Downloaded random-trait v0.1.1
[INFO] [stderr]   Downloaded random-fast-rng v0.1.1
[INFO] [stderr]   Downloaded secret-keeper-cloudkms v0.3.7
[INFO] [stderr]   Downloaded secret-keeper-test_util v0.3.5
[INFO] [stderr]   Downloaded secret-keeper-hashivault v0.3.5
[INFO] [stderr]   Downloaded secret-keeper-prompt v0.3.4
[INFO] [stderr]   Downloaded secret-keeper v0.3.5
[INFO] [stderr]   Downloaded googapis v0.3.0+20200719
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] 3febb25085f9c14b3aeda8aceaf8ad6d70e763e6a0b791d517e3c527ff96fa17
[INFO] running `Command { std: "docker" "start" "-a" "3febb25085f9c14b3aeda8aceaf8ad6d70e763e6a0b791d517e3c527ff96fa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3febb25085f9c14b3aeda8aceaf8ad6d70e763e6a0b791d517e3c527ff96fa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3febb25085f9c14b3aeda8aceaf8ad6d70e763e6a0b791d517e3c527ff96fa17", kill_on_drop: false }`
[INFO] [stdout] 3febb25085f9c14b3aeda8aceaf8ad6d70e763e6a0b791d517e3c527ff96fa17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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] 6121d77e3f1a68dc5d10ab44770fb3421a5c3ef2732a7a485f7754d03c3c0e3f
[INFO] running `Command { std: "docker" "start" "-a" "6121d77e3f1a68dc5d10ab44770fb3421a5c3ef2732a7a485f7754d03c3c0e3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
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[INFO] [stderr]    Compiling tower-service v0.3.0
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[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling tinyvec v0.3.3
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.31
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[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
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[INFO] [stderr]    Compiling sha2 v0.9.1
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[INFO] [stderr]    Compiling pbkdf2 v0.4.0
[INFO] [stderr]    Compiling aes v0.4.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling attohttpc v0.15.0
[INFO] [stderr]    Compiling aes-gcm v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling simple_asn1 v0.4.1
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rustls v0.18.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.6.1/src/lib.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 |             .intersperse(quote!(|));
[INFO] [stdout]     |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `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] 107 ~         let tags = Iterator::intersperse(field
[INFO] [stdout] 108 +             .tags()
[INFO] [stdout] 109 +             .into_iter()
[INFO] [stdout] 110 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 111 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 112 +         $crate::quote_each_token!(_s $($tt)*);
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 107 ~         let tags = Itertools::intersperse(field
[INFO] [stdout] 108 +             .tags()
[INFO] [stdout] 109 +             .into_iter()
[INFO] [stdout] 110 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 111 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 112 +         $crate::quote_each_token!(_s $($tt)*);
[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 `prost-derive` 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" "6121d77e3f1a68dc5d10ab44770fb3421a5c3ef2732a7a485f7754d03c3c0e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6121d77e3f1a68dc5d10ab44770fb3421a5c3ef2732a7a485f7754d03c3c0e3f", kill_on_drop: false }`
[INFO] [stdout] 6121d77e3f1a68dc5d10ab44770fb3421a5c3ef2732a7a485f7754d03c3c0e3f