[INFO] fetching crate vpi_export 0.1.9...
[INFO] testing vpi_export-0.1.9 against 1.91.0 for beta-1.92-2
[INFO] extracting crate vpi_export 0.1.9 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate vpi_export 0.1.9
[INFO] finished tweaking crates.io crate vpi_export 0.1.9
[INFO] tweaked toml for crates.io crate vpi_export 0.1.9 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vpi_export 0.1.9 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.70.1 (available: v0.72.1)
[INFO] [stderr]       Adding ctor v0.2.9 (available: v0.6.1)
[INFO] [stderr]       Adding git2 v0.19.0 (available: v0.20.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vpi_export_macro v0.1.9
[INFO] [stderr]   Downloaded vpi_user v0.1.0
[INFO] [stderr]   Downloaded libssh2-sys v0.3.1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ec1c68064f76d31cab1d855e7b0c6a37d29a185ac8f7e8f67fe8264f94208a
[INFO] running `Command { std: "docker" "start" "-a" "52ec1c68064f76d31cab1d855e7b0c6a37d29a185ac8f7e8f67fe8264f94208a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ec1c68064f76d31cab1d855e7b0c6a37d29a185ac8f7e8f67fe8264f94208a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ec1c68064f76d31cab1d855e7b0c6a37d29a185ac8f7e8f67fe8264f94208a", kill_on_drop: false }`
[INFO] [stdout] 52ec1c68064f76d31cab1d855e7b0c6a37d29a185ac8f7e8f67fe8264f94208a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ded23fa40ebdfb4d548bf1ee43ccbc05692cc5858460eb368d4eed976644dd
[INFO] running `Command { std: "docker" "start" "-a" "a7ded23fa40ebdfb4d548bf1ee43ccbc05692cc5858460eb368d4eed976644dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling bindgen v0.70.1
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling ctor v0.2.9
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling vpi_export_macro v0.1.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/vpi_export_macro-0.1.9/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_quote)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vpi_export_macro` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a7ded23fa40ebdfb4d548bf1ee43ccbc05692cc5858460eb368d4eed976644dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ded23fa40ebdfb4d548bf1ee43ccbc05692cc5858460eb368d4eed976644dd", kill_on_drop: false }`
[INFO] [stdout] a7ded23fa40ebdfb4d548bf1ee43ccbc05692cc5858460eb368d4eed976644dd
