[INFO] fetching crate stacked 0.1.3...
[INFO] testing stacked-0.1.3 against 1.60.0 for beta-1.61-1
[INFO] extracting crate stacked 0.1.3 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate stacked 0.1.3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stacked 0.1.3
[INFO] finished tweaking crates.io crate stacked 0.1.3
[INFO] tweaked toml for crates.io crate stacked 0.1.3 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kerr v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e024704ad89a6ac1595c2d31d3a327ca0d16d47b967b8ba1f08dde04a1adff5
[INFO] running `Command { std: "docker" "start" "-a" "5e024704ad89a6ac1595c2d31d3a327ca0d16d47b967b8ba1f08dde04a1adff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e024704ad89a6ac1595c2d31d3a327ca0d16d47b967b8ba1f08dde04a1adff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e024704ad89a6ac1595c2d31d3a327ca0d16d47b967b8ba1f08dde04a1adff5", kill_on_drop: false }`
[INFO] [stdout] 5e024704ad89a6ac1595c2d31d3a327ca0d16d47b967b8ba1f08dde04a1adff5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 395b53f1acffc834a2505f80ea33c1184cf59cd34db867a85636e70641c34ca0
[INFO] running `Command { std: "docker" "start" "-a" "395b53f1acffc834a2505f80ea33c1184cf59cd34db867a85636e70641c34ca0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling kerr v0.1.4
[INFO] [stderr]    Compiling stacked v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, const_in_array_repeat_expressions)]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stacked` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "395b53f1acffc834a2505f80ea33c1184cf59cd34db867a85636e70641c34ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395b53f1acffc834a2505f80ea33c1184cf59cd34db867a85636e70641c34ca0", kill_on_drop: false }`
[INFO] [stdout] 395b53f1acffc834a2505f80ea33c1184cf59cd34db867a85636e70641c34ca0