[INFO] fetching crate yew_form_derive 0.1.7...
[INFO] checking yew_form_derive-0.1.7 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate yew_form_derive 0.1.7 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate yew_form_derive 0.1.7 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yew_form_derive 0.1.7
[INFO] finished tweaking crates.io crate yew_form_derive 0.1.7
[INFO] tweaked toml for crates.io crate yew_form_derive 0.1.7 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if_chain v1.0.1
[INFO] [stderr]   Downloaded validator v0.10.1
[INFO] [stderr]   Downloaded validator_derive v0.10.1
[INFO] [stderr]   Downloaded yew_form v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 21cbe02865fa4d0b8ac03f2bb1a6c0dacc1593429f19e4ebb3634fcc600e5125
[INFO] running `Command { std: "docker" "start" "-a" "21cbe02865fa4d0b8ac03f2bb1a6c0dacc1593429f19e4ebb3634fcc600e5125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21cbe02865fa4d0b8ac03f2bb1a6c0dacc1593429f19e4ebb3634fcc600e5125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21cbe02865fa4d0b8ac03f2bb1a6c0dacc1593429f19e4ebb3634fcc600e5125", kill_on_drop: false }`
[INFO] [stdout] 21cbe02865fa4d0b8ac03f2bb1a6c0dacc1593429f19e4ebb3634fcc600e5125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--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] e0ed2298578cff3924f2467e108b1417bf3d37fda9ff3cffea1a9ee2e36cf7a4
[INFO] running `Command { std: "docker" "start" "-a" "e0ed2298578cff3924f2467e108b1417bf3d37fda9ff3cffea1a9ee2e36cf7a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling yew v0.17.4
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking cfg-match v0.2.1
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking syn v1.0.72
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling yew-macro v0.17.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking validator v0.10.1
[INFO] [stderr]     Checking js-sys v0.3.50
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling validator_derive v0.10.1
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking web-sys v0.3.50
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.23
[INFO] [stderr]     Checking gloo-events v0.1.1
[INFO] [stderr]     Checking gloo-console-timer v0.1.0
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking gloo-file v0.1.0
[INFO] [stderr]     Checking gloo v0.2.1
[INFO] [stderr]     Checking yew_form v0.1.7
[INFO] [stderr]     Checking yew_form_derive v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/lib.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::export::{ToTokens, TokenStream};
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> src/lib.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::export::{ToTokens, TokenStream};
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_tokens` found for reference `&syn::Path` in the current scope
[INFO] [stdout]   --> src/lib.rs:32:22
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 path.to_tokens(&mut tokens);
[INFO] [stdout]    |                      ^^^^^^^^^ method not found in `&syn::Path`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 6  | use crate::quote::ToTokens;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yew_form_derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `to_tokens` found for reference `&syn::Path` in the current scope
[INFO] [stdout]   --> src/lib.rs:32:22
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 path.to_tokens(&mut tokens);
[INFO] [stdout]    |                      ^^^^^^^^^ method not found in `&syn::Path`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 6  | use crate::quote::ToTokens;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e0ed2298578cff3924f2467e108b1417bf3d37fda9ff3cffea1a9ee2e36cf7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ed2298578cff3924f2467e108b1417bf3d37fda9ff3cffea1a9ee2e36cf7a4", kill_on_drop: false }`
[INFO] [stdout] e0ed2298578cff3924f2467e108b1417bf3d37fda9ff3cffea1a9ee2e36cf7a4