[INFO] fetching crate rustc_plugin 0.15.2-nightly-2026-05-01...
[INFO] fixing rustc_plugin-0.15.2-nightly-2026-05-01 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate rustc_plugin 0.15.2-nightly-2026-05-01 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rustc_plugin 0.15.2-nightly-2026-05-01
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustc_plugin 0.15.2-nightly-2026-05-01
[INFO] tweaked toml for crates.io crate rustc_plugin 0.15.2-nightly-2026-05-01 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustc_plugin 0.15.2-nightly-2026-05-01 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustc_plugin 0.15.2-nightly-2026-05-01 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc_tools_util v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3
[INFO] running `Command { std: "docker" "start" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling camino v1.2.2
[INFO] [stderr]     Checking rustc_tools_util v0.1.1
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking semver v1.0.28
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]     Checking cargo-platform v0.1.9
[INFO] [stderr]     Checking cargo_metadata v0.14.2
[INFO] [stderr]    Compiling rustc_plugin v0.15.2-nightly-2026-05-01 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read `rust-toolchain.toml`: No such file or directory (os error 2)
[INFO] [stdout]  --> build.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |   let toolchain_toml = include_str!("rust-toolchain.toml");
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc_plugin` (build script) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3", kill_on_drop: false }`
[INFO] [stdout] 4d133eabecdc17a4ca9a8acbcdfc0c2517b4fab6abb44a06a0a836c52bf054f3
