[INFO] fetching crate numbat-wasm-derive 0.0.18...
[INFO] testing numbat-wasm-derive-0.0.18 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate numbat-wasm-derive 0.0.18 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate numbat-wasm-derive 0.0.18
[INFO] finished tweaking crates.io crate numbat-wasm-derive 0.0.18
[INFO] tweaked toml for crates.io crate numbat-wasm-derive 0.0.18 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate numbat-wasm-derive 0.0.18 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate numbat-wasm-derive 0.0.18 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded radix_trie v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34083b6c0d8556ee5539d0e845d1d41201fdd92da4d039910cf915c96fb5de16
[INFO] running `Command { std: "docker" "start" "-a" "34083b6c0d8556ee5539d0e845d1d41201fdd92da4d039910cf915c96fb5de16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34083b6c0d8556ee5539d0e845d1d41201fdd92da4d039910cf915c96fb5de16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34083b6c0d8556ee5539d0e845d1d41201fdd92da4d039910cf915c96fb5de16", kill_on_drop: false }`
[INFO] [stdout] 34083b6c0d8556ee5539d0e845d1d41201fdd92da4d039910cf915c96fb5de16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f3bb9551b5c68672d2be93ba08c45d4e9b669c751d07924f458ce31b0b0c1bb
[INFO] running `Command { std: "docker" "start" "-a" "4f3bb9551b5c68672d2be93ba08c45d4e9b669c751d07924f458ce31b0b0c1bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling radix_trie v0.1.6
[INFO] [stderr]    Compiling numbat-wasm-derive v0.0.18 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::TokenStream: proc_macro::ToTokens` is not satisfied
[INFO] [stdout]   --> src/format/format_args_macro.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 | /                 quote! (
[INFO] [stdout] 41 | |                     numbat_wasm::formatter::FormatBuffer::append_ascii(&mut $accumulator_expr, $str_as_bytes);
[INFO] [stdout] 42 | |                 )
[INFO] [stdout]    | |                 ^
[INFO] [stdout]    | |                 |
[INFO] [stdout]    | |_________________the nightly-only, unstable trait `proc_macro::ToTokens` is not implemented for `proc_macro2::TokenStream`
[INFO] [stdout]    |                   required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `proc_macro2::TokenStream` implements similarly named trait `quote::ToTokens`, but not `proc_macro::ToTokens`
[INFO] [stdout]    = help: the following other types implement trait `proc_macro::ToTokens`:
[INFO] [stdout]              &T
[INFO] [stdout]              &mut T
[INFO] [stdout]              CStr
[INFO] [stdout]              CString
[INFO] [stdout]              Cow<'_, T>
[INFO] [stdout]              Option<T>
[INFO] [stdout]              Rc<T>
[INFO] [stdout]              String
[INFO] [stdout]            and 24 others
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `numbat-wasm-derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4f3bb9551b5c68672d2be93ba08c45d4e9b669c751d07924f458ce31b0b0c1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3bb9551b5c68672d2be93ba08c45d4e9b669c751d07924f458ce31b0b0c1bb", kill_on_drop: false }`
[INFO] [stdout] 4f3bb9551b5c68672d2be93ba08c45d4e9b669c751d07924f458ce31b0b0c1bb