[INFO] fetching crate wasm-wrapper-gen-build 0.0.3...
[INFO] checking wasm-wrapper-gen-build-0.0.3 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate wasm-wrapper-gen-build 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wasm-wrapper-gen-build 0.0.3 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-wrapper-gen-build 0.0.3
[INFO] finished tweaking crates.io crate wasm-wrapper-gen-build 0.0.3
[INFO] tweaked toml for crates.io crate wasm-wrapper-gen-build 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5819e8161105b2f4470c1f19abad72f538d82a2255c34cc407c937ca79cfa86
[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" "c5819e8161105b2f4470c1f19abad72f538d82a2255c34cc407c937ca79cfa86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5819e8161105b2f4470c1f19abad72f538d82a2255c34cc407c937ca79cfa86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5819e8161105b2f4470c1f19abad72f538d82a2255c34cc407c937ca79cfa86", kill_on_drop: false }`
[INFO] [stdout] c5819e8161105b2f4470c1f19abad72f538d82a2255c34cc407c937ca79cfa86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "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] 6b5d2187dc7345362d8c38b6aa99289e9f7827fef2675c5785f59b37876531ba
[INFO] running `Command { std: "docker" "start" "-a" "6b5d2187dc7345362d8c38b6aa99289e9f7827fef2675c5785f59b37876531ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking wasm-wrapper-gen-shared v0.0.3
[INFO] [stderr]     Checking wasm-wrapper-gen-build v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::visit`
[INFO] [stdout]  --> src/source_searching.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use syn::visit::Visitor;
[INFO] [stdout]   |              ^^^^^ could not find `visit` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `visit` in `syn`
[INFO] [stdout]   --> src/source_searching.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl syn::visit::Visitor for FindMacrosVisitor {
[INFO] [stdout]    |           ^^^^^ could not find `visit` in `syn`
[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, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-wrapper-gen-build`.
[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[E0432]: unresolved import `syn::visit`
[INFO] [stdout]  --> src/source_searching.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use syn::visit::Visitor;
[INFO] [stdout]   |              ^^^^^ could not find `visit` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `visit` in `syn`
[INFO] [stdout]   --> src/source_searching.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl syn::visit::Visitor for FindMacrosVisitor {
[INFO] [stdout]    |           ^^^^^ could not find `visit` in `syn`
[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, E0433.
[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" "6b5d2187dc7345362d8c38b6aa99289e9f7827fef2675c5785f59b37876531ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5d2187dc7345362d8c38b6aa99289e9f7827fef2675c5785f59b37876531ba", kill_on_drop: false }`
[INFO] [stdout] 6b5d2187dc7345362d8c38b6aa99289e9f7827fef2675c5785f59b37876531ba