[INFO] fetching crate bytebuff 0.1.1...
[INFO] testing bytebuff-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bytebuff 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate bytebuff 0.1.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bytebuff 0.1.1
[INFO] finished tweaking crates.io crate bytebuff 0.1.1
[INFO] tweaked toml for crates.io crate bytebuff 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded marshall_derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d99b2bbe0226dc91d939419e0772d5e05d3bbcdf55c3ba71cc9f2c168f999eca
[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" "d99b2bbe0226dc91d939419e0772d5e05d3bbcdf55c3ba71cc9f2c168f999eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99b2bbe0226dc91d939419e0772d5e05d3bbcdf55c3ba71cc9f2c168f999eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99b2bbe0226dc91d939419e0772d5e05d3bbcdf55c3ba71cc9f2c168f999eca", kill_on_drop: false }`
[INFO] [stdout] d99b2bbe0226dc91d939419e0772d5e05d3bbcdf55c3ba71cc9f2c168f999eca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 101c34d70d2d264a29601e46a58cdbbd0314e626b0ffe89a70f332436ee1e963
[INFO] running `Command { std: "docker" "start" "-a" "101c34d70d2d264a29601e46a58cdbbd0314e626b0ffe89a70f332436ee1e963", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling marshall_derive v0.1.1
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/marshall_derive-0.1.1/src/lib.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::export::ToTokens;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_token_stream` found for enum `syn::Type` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/marshall_derive-0.1.1/src/lib.rs:50:36
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 let ty = &field.ty.to_token_stream().to_string();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^ method not found in `syn::Type`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quote-1.0.18/src/to_tokens.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn to_token_stream(&self) -> TokenStream {
[INFO] [stdout]    |        --------------- the method is available for `syn::Type` here
[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] 4  | use syn::__private::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 `marshall_derive` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "101c34d70d2d264a29601e46a58cdbbd0314e626b0ffe89a70f332436ee1e963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "101c34d70d2d264a29601e46a58cdbbd0314e626b0ffe89a70f332436ee1e963", kill_on_drop: false }`
[INFO] [stdout] 101c34d70d2d264a29601e46a58cdbbd0314e626b0ffe89a70f332436ee1e963