[INFO] fetching crate prost-amino-derive 0.6.1...
[INFO] testing prost-amino-derive-0.6.1 against try#5bc97a20e5cc382ae6d19f727a9e73eeb2734548 for pr-99093
[INFO] extracting crate prost-amino-derive 0.6.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate prost-amino-derive 0.6.1 on toolchain 5bc97a20e5cc382ae6d19f727a9e73eeb2734548
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prost-amino-derive 0.6.1
[INFO] finished tweaking crates.io crate prost-amino-derive 0.6.1
[INFO] tweaked toml for crates.io crate prost-amino-derive 0.6.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "metadata" "--no-deps" "--format-version=1", 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] 0ca623a6dc5ceb7e520adddcf998b3a7bcf860e8dc06dff210a715c649784d86
[INFO] running `Command { std: "docker" "start" "-a" "0ca623a6dc5ceb7e520adddcf998b3a7bcf860e8dc06dff210a715c649784d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca623a6dc5ceb7e520adddcf998b3a7bcf860e8dc06dff210a715c649784d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca623a6dc5ceb7e520adddcf998b3a7bcf860e8dc06dff210a715c649784d86", kill_on_drop: false }`
[INFO] [stdout] 0ca623a6dc5ceb7e520adddcf998b3a7bcf860e8dc06dff210a715c649784d86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+5bc97a20e5cc382ae6d19f727a9e73eeb2734548" "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] e90cba27f7a72d299b4e3578ec04c4b551915a331ccaf9fc169611647fd07e4d
[INFO] running `Command { std: "docker" "start" "-a" "e90cba27f7a72d299b4e3578ec04c4b551915a331ccaf9fc169611647fd07e4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling object v0.29.0
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling prost-amino-derive v0.6.1 (/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(quote!(|));
[INFO] [stdout]     |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 184 ~         let tags = Itertools::intersperse(field
[INFO] [stdout] 185 +             .tags()
[INFO] [stdout] 186 +             .into_iter()
[INFO] [stdout] 187 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 188 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 189 +         $crate::quote_token!{$tt _s}
[INFO] [stdout] 190 +         _s
[INFO] [stdout] 191 ~     });
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 184 ~         let tags = Iterator::intersperse(field
[INFO] [stdout] 185 +             .tags()
[INFO] [stdout] 186 +             .into_iter()
[INFO] [stdout] 187 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 188 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 189 +         $crate::quote_token!{$tt _s}
[INFO] [stdout] 190 +         _s
[INFO] [stdout] 191 ~     });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | 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 `prost-amino-derive` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e90cba27f7a72d299b4e3578ec04c4b551915a331ccaf9fc169611647fd07e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e90cba27f7a72d299b4e3578ec04c4b551915a331ccaf9fc169611647fd07e4d", kill_on_drop: false }`
[INFO] [stdout] e90cba27f7a72d299b4e3578ec04c4b551915a331ccaf9fc169611647fd07e4d