[INFO] fetching crate ra-ap-rustc_data_structures 0.28.0...
[INFO] testing ra-ap-rustc_data_structures-0.28.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate ra-ap-rustc_data_structures 0.28.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ra-ap-rustc_data_structures 0.28.0
[INFO] finished tweaking crates.io crate ra-ap-rustc_data_structures 0.28.0
[INFO] tweaked toml for crates.io crate ra-ap-rustc_data_structures 0.28.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ra-ap-rustc_data_structures 0.28.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 101 packages to latest compatible versions
[INFO] [stderr]       Adding elsa v1.7.1 (available: v1.11.2)
[INFO] [stderr]       Adding indexmap v2.7.1 (available: v2.14.0)
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.14.0)
[INFO] [stderr]       Adding measureme v10.1.3 (available: v12.0.3)
[INFO] [stderr]       Adding memmap2 v0.2.3 (available: v0.9.10)
[INFO] [stderr]       Adding ra-ap-rustc_index v0.28.0 (available: v0.162.0)
[INFO] [stderr]       Adding ra-ap-rustc_macros v0.28.0 (available: v0.83.0)
[INFO] [stderr]       Adding ra-ap-rustc_serialize v0.28.0 (available: v0.80.0)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.1.2)
[INFO] [stderr]       Adding windows v0.48.0 (available: v0.62.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stacker v0.1.24
[INFO] [stderr]   Downloaded thin-vec v0.2.16
[INFO] [stderr]   Downloaded memmap2 v0.2.3
[INFO] [stderr]   Downloaded rustc-rayon-core v0.5.1
[INFO] [stderr]   Downloaded elsa v1.7.1
[INFO] [stderr]   Downloaded ena v0.14.4
[INFO] [stderr]   Downloaded rustc-rayon v0.5.1
[INFO] [stderr]   Downloaded ra-ap-rustc_arena v0.28.0
[INFO] [stderr]   Downloaded perf-event-open-sys v3.0.0
[INFO] [stderr]   Downloaded measureme v10.1.3
[INFO] [stderr]   Downloaded ra-ap-rustc_graphviz v0.28.0
[INFO] [stderr]   Downloaded ra-ap-rustc_serialize v0.28.0
[INFO] [stderr]   Downloaded ra-ap-rustc_index v0.28.0
[INFO] [stderr]   Downloaded ra-ap-rustc_index_macros v0.28.0
[INFO] [stderr]   Downloaded ra-ap-rustc_macros v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6898ff1954ae6286804a49f609111d658c1d80ad7c36ee395a27b4f64c5b11f
[INFO] running `Command { std: "docker" "start" "-a" "b6898ff1954ae6286804a49f609111d658c1d80ad7c36ee395a27b4f64c5b11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6898ff1954ae6286804a49f609111d658c1d80ad7c36ee395a27b4f64c5b11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6898ff1954ae6286804a49f609111d658c1d80ad7c36ee395a27b4f64c5b11f", kill_on_drop: false }`
[INFO] [stdout] b6898ff1954ae6286804a49f609111d658c1d80ad7c36ee395a27b4f64c5b11f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0de309d727f7d9588ee3ecbda377ca2ca58ff222b9617c44391afcafe4afe0b4
[INFO] running `Command { std: "docker" "start" "-a" "0de309d727f7d9588ee3ecbda377ca2ca58ff222b9617c44391afcafe4afe0b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling thin-vec v0.2.16
[INFO] [stderr]    Compiling perf-event-open-sys v3.0.0
[INFO] [stderr]    Compiling memmap2 v0.2.3
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling itertools v0.11.0
[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/smallvec-1.15.1/src/lib.rs:96:37
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling elsa v1.7.1
[INFO] [stderr]    Compiling ena v0.14.4
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling ra-ap-rustc_graphviz v0.28.0
[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/ra-ap-rustc_graphviz-0.28.0/src/lib.rs:276:1
[INFO] [stdout]     |
[INFO] [stdout] 276 | #![feature(rustdoc_internals)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr] error: could not compile `smallvec` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ra-ap-rustc_graphviz` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0de309d727f7d9588ee3ecbda377ca2ca58ff222b9617c44391afcafe4afe0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de309d727f7d9588ee3ecbda377ca2ca58ff222b9617c44391afcafe4afe0b4", kill_on_drop: false }`
[INFO] [stdout] 0de309d727f7d9588ee3ecbda377ca2ca58ff222b9617c44391afcafe4afe0b4
