[INFO] fetching crate ensicoin-simon 0.1.0...
[INFO] testing ensicoin-simon-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ensicoin-simon 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ensicoin-simon 0.1.0 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 ensicoin-simon 0.1.0
[INFO] finished tweaking crates.io crate ensicoin-simon 0.1.0
[INFO] tweaked toml for crates.io crate ensicoin-simon 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate ensicoin-simon 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 25dfe93ae75a834046eaa24615eb575f0e4a4361aa61d319f6f4639b9d97d95e
[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" "25dfe93ae75a834046eaa24615eb575f0e4a4361aa61d319f6f4639b9d97d95e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25dfe93ae75a834046eaa24615eb575f0e4a4361aa61d319f6f4639b9d97d95e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25dfe93ae75a834046eaa24615eb575f0e4a4361aa61d319f6f4639b9d97d95e", kill_on_drop: false }`
[INFO] [stdout] 25dfe93ae75a834046eaa24615eb575f0e4a4361aa61d319f6f4639b9d97d95e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84c3259d135e7a33200cf9684da53bacaebf2590512ca9ed39110e3ff6425cdb
[INFO] running `Command { std: "docker" "start" "-a" "84c3259d135e7a33200cf9684da53bacaebf2590512ca9ed39110e3ff6425cdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling indexmap v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling secp256k1 v0.15.5
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling hyper v0.12.34
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tower-layer v0.1.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling codegen v0.1.1
[INFO] [stderr]    Compiling tower-util v0.1.0
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling ensicoin_serializer v2.0.9
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.5.0/src/lib.rs:114:14
[INFO] [stdout]     |
[INFO] [stdout] 114 |             .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] 110 ~         let tags = Iterator::intersperse(field
[INFO] [stdout] 111 +             .tags()
[INFO] [stdout] 112 +             .into_iter()
[INFO] [stdout] 113 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 114 +         let mut _s = $crate::__rt::TokenStream::new();
[INFO] [stdout] 115 +         let _span = $span;
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 110 ~         let tags = Itertools::intersperse(field
[INFO] [stdout] 111 +             .tags()
[INFO] [stdout] 112 +             .into_iter()
[INFO] [stdout] 113 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 114 +         let mut _s = $crate::__rt::TokenStream::new();
[INFO] [stdout] 115 +         let _span = $span;
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chrono v0.4.9
[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" "84c3259d135e7a33200cf9684da53bacaebf2590512ca9ed39110e3ff6425cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c3259d135e7a33200cf9684da53bacaebf2590512ca9ed39110e3ff6425cdb", kill_on_drop: false }`
[INFO] [stdout] 84c3259d135e7a33200cf9684da53bacaebf2590512ca9ed39110e3ff6425cdb