[INFO] fetching crate grapl-config 0.0.2...
[INFO] testing grapl-config-0.0.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate grapl-config 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate grapl-config 0.0.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grapl-config 0.0.2
[INFO] finished tweaking crates.io crate grapl-config 0.0.2
[INFO] tweaked toml for crates.io crate grapl-config 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded color-backtrace v0.4.2
[INFO] [stderr]   Downloaded aktors v0.2.7
[INFO] [stderr]   Downloaded color-eyre v0.3.4
[INFO] [stderr]   Downloaded eyre v0.4.3
[INFO] [stderr]   Downloaded rusoto_s3 v0.43.0
[INFO] [stderr]   Downloaded futures-retry v0.3.3
[INFO] [stderr]   Downloaded rusoto_sqs v0.47.0
[INFO] [stderr]   Downloaded derive-aktor v0.1.6
[INFO] [stderr]   Downloaded rusoto_sqs v0.43.0
[INFO] [stderr]   Downloaded sqs-lambda v0.20.23
[INFO] [stderr]   Downloaded darkredis v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 206179078c74ec71ffa3090607cd083f31d74fed7a3b566ab9ca7a2297182e2b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "206179078c74ec71ffa3090607cd083f31d74fed7a3b566ab9ca7a2297182e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "206179078c74ec71ffa3090607cd083f31d74fed7a3b566ab9ca7a2297182e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206179078c74ec71ffa3090607cd083f31d74fed7a3b566ab9ca7a2297182e2b", kill_on_drop: false }`
[INFO] [stdout] 206179078c74ec71ffa3090607cd083f31d74fed7a3b566ab9ca7a2297182e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09020f93f42c4ae2d91e978a5e149f14f0428a8de525dcace51c24279c46f75f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "09020f93f42c4ae2d91e978a5e149f14f0428a8de525dcace51c24279c46f75f", kill_on_drop: false }`
[INFO] [stderr]    Compiling eyre v0.4.3
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling rusoto_core v0.43.0
[INFO] [stderr]    Compiling lambda_runtime_core v0.1.2
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling rusoto_core v0.47.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling inotify v0.9.3
[INFO] [stderr]    Compiling futures-retry v0.3.3
[INFO] [stderr]    Compiling lambda_runtime_errors_derive v0.1.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling time v0.2.27
[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" "09020f93f42c4ae2d91e978a5e149f14f0428a8de525dcace51c24279c46f75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09020f93f42c4ae2d91e978a5e149f14f0428a8de525dcace51c24279c46f75f", kill_on_drop: false }`
[INFO] [stdout] 09020f93f42c4ae2d91e978a5e149f14f0428a8de525dcace51c24279c46f75f