[INFO] fetching crate rustc_plugin 0.14.1-nightly-2025-08-20...
[INFO] building rustc_plugin-0.14.1-nightly-2025-08-20 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rustc_plugin 0.14.1-nightly-2025-08-20 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rustc_plugin 0.14.1-nightly-2025-08-20
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustc_plugin 0.14.1-nightly-2025-08-20
[INFO] tweaked toml for crates.io crate rustc_plugin 0.14.1-nightly-2025-08-20 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustc_plugin 0.14.1-nightly-2025-08-20 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustc_plugin 0.14.1-nightly-2025-08-20 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c498fa52e21fbc3e6cd0e723825ddacf4fbfe6c3ef38db631503033d4855b98f
[INFO] running `Command { std: "docker" "start" "-a" "c498fa52e21fbc3e6cd0e723825ddacf4fbfe6c3ef38db631503033d4855b98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c498fa52e21fbc3e6cd0e723825ddacf4fbfe6c3ef38db631503033d4855b98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c498fa52e21fbc3e6cd0e723825ddacf4fbfe6c3ef38db631503033d4855b98f", kill_on_drop: false }`
[INFO] [stdout] c498fa52e21fbc3e6cd0e723825ddacf4fbfe6c3ef38db631503033d4855b98f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45d5ceacfb427dbe7737c7adcff4a6e59e0c686cf88edf55e6d31003653fd580
[INFO] running `Command { std: "docker" "start" "-a" "45d5ceacfb427dbe7737c7adcff4a6e59e0c686cf88edf55e6d31003653fd580", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling camino v1.1.12
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling rustc_tools_util v0.1.1
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling rustc_plugin v0.14.1-nightly-2025-08-20 (/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" "45d5ceacfb427dbe7737c7adcff4a6e59e0c686cf88edf55e6d31003653fd580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d5ceacfb427dbe7737c7adcff4a6e59e0c686cf88edf55e6d31003653fd580", kill_on_drop: false }`
[INFO] [stdout] 45d5ceacfb427dbe7737c7adcff4a6e59e0c686cf88edf55e6d31003653fd580