[INFO] fetching crate starchart-backends 0.2.0...
[INFO] building starchart-backends-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate starchart-backends 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate starchart-backends 0.2.0
[INFO] finished tweaking crates.io crate starchart-backends 0.2.0
[INFO] tweaked toml for crates.io crate starchart-backends 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate starchart-backends 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 80 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding dashmap v5.5.3 (available: v6.1.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.9.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73b6a3f47e3496eea323f01f6c90f7a055694bb3c0cb6a579191d5cfa524154a
[INFO] running `Command { std: "docker" "start" "-a" "73b6a3f47e3496eea323f01f6c90f7a055694bb3c0cb6a579191d5cfa524154a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b6a3f47e3496eea323f01f6c90f7a055694bb3c0cb6a579191d5cfa524154a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b6a3f47e3496eea323f01f6c90f7a055694bb3c0cb6a579191d5cfa524154a", kill_on_drop: false }`
[INFO] [stdout] 73b6a3f47e3496eea323f01f6c90f7a055694bb3c0cb6a579191d5cfa524154a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b137085f794dc15da9ee534657bcaa019b8286c686ca9add6ea8c72f53ecd7
[INFO] running `Command { std: "docker" "start" "-a" "18b137085f794dc15da9ee534657bcaa019b8286c686ca9add6ea8c72f53ecd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling starchart v0.19.0
[INFO] [stderr]    Compiling starchart-backends v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/starchart-0.19.0/src/lib.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     feature(doc_auto_cfg, doc_cfg),
[INFO] [stdout]    |             ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in 1.58.0; see <https://github.com/rust-lang/rust/pull/138907> for more information
[INFO] [stdout]    = note: merged into `doc_cfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `starchart` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "18b137085f794dc15da9ee534657bcaa019b8286c686ca9add6ea8c72f53ecd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b137085f794dc15da9ee534657bcaa019b8286c686ca9add6ea8c72f53ecd7", kill_on_drop: false }`
[INFO] [stdout] 18b137085f794dc15da9ee534657bcaa019b8286c686ca9add6ea8c72f53ecd7