[INFO] fetching crate include_display_mode_tex 0.1.5...
[INFO] testing include_display_mode_tex-0.1.5 against 1.90.0 for beta-1.91-3
[INFO] extracting crate include_display_mode_tex 0.1.5 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate include_display_mode_tex 0.1.5
[INFO] finished tweaking crates.io crate include_display_mode_tex 0.1.5
[INFO] tweaked toml for crates.io crate include_display_mode_tex 0.1.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate include_display_mode_tex 0.1.5 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding relative-path v1.9.3 (available: v2.0.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9c13a4691455e8019951742a0c625bcb2f676e2b28f6fd09f5d9f8d51178441
[INFO] running `Command { std: "docker" "start" "-a" "e9c13a4691455e8019951742a0c625bcb2f676e2b28f6fd09f5d9f8d51178441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9c13a4691455e8019951742a0c625bcb2f676e2b28f6fd09f5d9f8d51178441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c13a4691455e8019951742a0c625bcb2f676e2b28f6fd09f5d9f8d51178441", kill_on_drop: false }`
[INFO] [stdout] e9c13a4691455e8019951742a0c625bcb2f676e2b28f6fd09f5d9f8d51178441
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 789916ea03b9c0d7004cc4624b95bb02149cabe9799fd65e5174436ff54bd556
[INFO] running `Command { std: "docker" "start" "-a" "789916ea03b9c0d7004cc4624b95bb02149cabe9799fd65e5174436ff54bd556", kill_on_drop: false }`
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling include_display_mode_tex v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `source_file` found for struct `proc_macro::Span` in the current scope
[INFO] [stdout]   --> src/lib.rs:21:71
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let call_site: std::path::PathBuf = proc_macro::Span::call_site().source_file().path();
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `source` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 21 -     let call_site: std::path::PathBuf = proc_macro::Span::call_site().source_file().path();
[INFO] [stdout] 21 +     let call_site: std::path::PathBuf = proc_macro::Span::call_site().source().path();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `include_display_mode_tex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "789916ea03b9c0d7004cc4624b95bb02149cabe9799fd65e5174436ff54bd556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789916ea03b9c0d7004cc4624b95bb02149cabe9799fd65e5174436ff54bd556", kill_on_drop: false }`
[INFO] [stdout] 789916ea03b9c0d7004cc4624b95bb02149cabe9799fd65e5174436ff54bd556