[INFO] fetching crate rustc_term 0.0.1...
[INFO] testing rustc_term-0.0.1 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate rustc_term 0.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rustc_term 0.0.1
[INFO] finished tweaking crates.io crate rustc_term 0.0.1
[INFO] tweaked toml for crates.io crate rustc_term 0.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustc_term 0.0.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269
[INFO] running `Command { std: "docker" "start" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269", 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" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269", 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=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc_term v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(custom_attribute)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in 1.0.0; see <https://github.com/rust-lang/rust/pull/66070> for more information
[INFO] [stdout]    = note: removed in favor of `#![register_tool]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc_term` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269", kill_on_drop: false }`
[INFO] [stdout] e45dca7b3e40fb71310d4609f967801f0a8d8947cb638e35a2cb5cb417861269
