[INFO] cloning repository https://github.com/buggoing/chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buggoing/chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f709a9c89375fdc46147b23ddc4490377080ae2b
[INFO] testing buggoing/chat against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuggoing%2Fchat" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/buggoing/chat 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 git repo https://github.com/buggoing/chat
[INFO] finished tweaking git repo https://github.com/buggoing/chat
[INFO] tweaked toml for git repo https://github.com/buggoing/chat written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/buggoing/chat 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.1
[INFO] [stderr]   Downloaded futures-sink v0.3.7
[INFO] [stderr]   Downloaded futures-core v0.3.7
[INFO] [stderr]   Downloaded tower-layer v0.3.0
[INFO] [stderr]   Downloaded pin-project v1.0.1
[INFO] [stderr]   Downloaded async-io v1.1.10
[INFO] [stderr]   Downloaded redis v0.17.0
[INFO] [stderr]   Downloaded typed-builder v0.3.0
[INFO] [stderr]   Downloaded futures-executor v0.3.7
[INFO] [stderr]   Downloaded backtrace v0.3.53
[INFO] [stderr]   Downloaded serde_with v1.5.1
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded md-5 v0.8.0
[INFO] [stderr]   Downloaded bson v1.1.0
[INFO] [stderr]   Downloaded serde_with_macros v1.2.2
[INFO] [stderr]   Downloaded mongodb v1.1.1
[INFO] [stderr]   Downloaded futures-intrusive v0.3.1
[INFO] [stderr]   Downloaded os_info v2.0.8
[INFO] [stderr]   Downloaded futures-util v0.3.7
[INFO] [stderr]   Downloaded object v0.21.1
[INFO] [stderr]   Downloaded tower-timeout v0.3.0
[INFO] [stderr]   Downloaded futures-task v0.3.7
[INFO] [stderr]   Downloaded tower-balance v0.3.0
[INFO] [stderr]   Downloaded instant v0.1.8
[INFO] [stderr]   Downloaded async-stream-impl v0.2.1
[INFO] [stderr]   Downloaded tower-buffer v0.3.0
[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded tower-util v0.3.1
[INFO] [stderr]   Downloaded futures-macro v0.3.7
[INFO] [stderr]   Downloaded tower-discover v0.3.0
[INFO] [stderr]   Downloaded tokio-rustls v0.13.1
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.5
[INFO] [stderr]   Downloaded futures v0.3.7
[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.5
[INFO] [stderr]   Downloaded combine v4.3.2
[INFO] [stderr]   Downloaded pin-project-internal v1.0.1
[INFO] [stderr]   Downloaded futures-channel v0.3.7
[INFO] [stderr]   Downloaded async-stream v0.2.1
[INFO] [stderr]   Downloaded tonic-build v0.3.1
[INFO] [stderr]   Downloaded tower-load-shed v0.3.0
[INFO] [stderr]   Downloaded tower-retry v0.3.0
[INFO] [stderr]   Downloaded tower v0.3.1
[INFO] [stderr]   Downloaded tonic v0.3.1
[INFO] [stderr]   Downloaded async-trait v0.1.41
[INFO] [stderr]   Downloaded futures-io v0.3.7
[INFO] [stderr]   Downloaded tower-load v0.3.0
[INFO] [stderr]   Downloaded tower-make v0.3.0
[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] 3d5a9aa9dce5f1024e10d0c077e22fc6c1b3c7bd33f2a592cf349514ca49a68a
[INFO] running `Command { std: "docker" "start" "-a" "3d5a9aa9dce5f1024e10d0c077e22fc6c1b3c7bd33f2a592cf349514ca49a68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d5a9aa9dce5f1024e10d0c077e22fc6c1b3c7bd33f2a592cf349514ca49a68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5a9aa9dce5f1024e10d0c077e22fc6c1b3c7bd33f2a592cf349514ca49a68a", kill_on_drop: false }`
[INFO] [stdout] 3d5a9aa9dce5f1024e10d0c077e22fc6c1b3c7bd33f2a592cf349514ca49a68a
[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] [stdout] 827ef0b1c6fba95a0169de1960b7ec39f84008869226648e079c517c3c9c9904
[INFO] running `Command { std: "docker" "start" "-a" "827ef0b1c6fba95a0169de1960b7ec39f84008869226648e079c517c3c9c9904", 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]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling os_info v2.0.8
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling futures-intrusive v0.3.1
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling md-5 v0.8.0
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling async-std v1.6.5
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.18.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=668f1ce81d6f0ec8 -C extra-filename=-668f1ce81d6f0ec8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-18f941bc31ab392e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8b5ff6b36ede5b66.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-09e70e8bcc039b17.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "827ef0b1c6fba95a0169de1960b7ec39f84008869226648e079c517c3c9c9904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "827ef0b1c6fba95a0169de1960b7ec39f84008869226648e079c517c3c9c9904", kill_on_drop: false }`
[INFO] [stdout] 827ef0b1c6fba95a0169de1960b7ec39f84008869226648e079c517c3c9c9904