[INFO] fetching crate syntax_ast_builder 0.1.0...
[INFO] testing syntax_ast_builder-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate syntax_ast_builder 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate syntax_ast_builder 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntax_ast_builder 0.1.0
[INFO] finished tweaking crates.io crate syntax_ast_builder 0.1.0
[INFO] tweaked toml for crates.io crate syntax_ast_builder 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d688f7c8563282431189e5ec4614327cd70d2ac16ca4a1b51c8da8849a13dcd
[INFO] running `Command { std: "docker" "start" "-a" "5d688f7c8563282431189e5ec4614327cd70d2ac16ca4a1b51c8da8849a13dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d688f7c8563282431189e5ec4614327cd70d2ac16ca4a1b51c8da8849a13dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d688f7c8563282431189e5ec4614327cd70d2ac16ca4a1b51c8da8849a13dcd", kill_on_drop: false }`
[INFO] [stdout] 5d688f7c8563282431189e5ec4614327cd70d2ac16ca4a1b51c8da8849a13dcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70a76b9a97ac710e05520af60c4bdf9b223911473ee26c2f62e7d3b0bb90a845
[INFO] running `Command { std: "docker" "start" "-a" "70a76b9a97ac710e05520af60c4bdf9b223911473ee26c2f62e7d3b0bb90a845", kill_on_drop: false }`
[INFO] [stderr]    Compiling syntax_ast_builder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[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(rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `IntoPath` for type `&str`
[INFO] [stdout]    --> src/lib.rs:102:1
[INFO] [stdout]     |
[INFO] [stdout] 96  | impl<'a> IntoPath for &'a str {
[INFO] [stdout]     | ----------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 102 | impl<'a, I, T> IntoPath for I where I: IntoIterator<Item=T>, T: ToIdent {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: upstream crates may add a new impl of trait `std::iter::Iterator` for type `&str` in future versions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0119, E0463, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntax_ast_builder` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "70a76b9a97ac710e05520af60c4bdf9b223911473ee26c2f62e7d3b0bb90a845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a76b9a97ac710e05520af60c4bdf9b223911473ee26c2f62e7d3b0bb90a845", kill_on_drop: false }`
[INFO] [stdout] 70a76b9a97ac710e05520af60c4bdf9b223911473ee26c2f62e7d3b0bb90a845
