[INFO] fetching crate rusty-html-macros 0.1.0...
[INFO] testing rusty-html-macros-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate rusty-html-macros 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rusty-html-macros 0.1.0
[INFO] finished tweaking crates.io crate rusty-html-macros 0.1.0
[INFO] tweaked toml for crates.io crate rusty-html-macros 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-html-macros 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d70a8959366ed034062c969b22d872634d9aa0b6349bb351c71c7605f4b53762
[INFO] running `Command { std: "docker" "start" "-a" "d70a8959366ed034062c969b22d872634d9aa0b6349bb351c71c7605f4b53762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d70a8959366ed034062c969b22d872634d9aa0b6349bb351c71c7605f4b53762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70a8959366ed034062c969b22d872634d9aa0b6349bb351c71c7605f4b53762", kill_on_drop: false }`
[INFO] [stdout] d70a8959366ed034062c969b22d872634d9aa0b6349bb351c71c7605f4b53762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d6535c304f5cd8527073902cdc19801d1cdc736ab76e64d75986bf27871502f
[INFO] running `Command { std: "docker" "start" "-a" "2d6535c304f5cd8527073902cdc19801d1cdc736ab76e64d75986bf27871502f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-html-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span_shrink)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]   |
[INFO] [stdout] 2 - #![feature(proc_macro_span_shrink)]
[INFO] [stdout] 2 + #![feature(proc_macro_span_file)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `before` found for struct `proc_macro::Span` in the current scope
[INFO] [stdout]   --> src/parser.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...                   group.span().before().join(self.span_ptr)?.source_text()
[INFO] [stdout]    |                                    ^^^^^^ method not found in `proc_macro::Span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-html-macros` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d6535c304f5cd8527073902cdc19801d1cdc736ab76e64d75986bf27871502f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d6535c304f5cd8527073902cdc19801d1cdc736ab76e64d75986bf27871502f", kill_on_drop: false }`
[INFO] [stdout] 2d6535c304f5cd8527073902cdc19801d1cdc736ab76e64d75986bf27871502f