[INFO] fetching crate tiny-expr-tree 0.1.0...
[INFO] testing tiny-expr-tree-0.1.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate tiny-expr-tree 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tiny-expr-tree 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tiny-expr-tree 0.1.0
[INFO] tweaked toml for crates.io crate tiny-expr-tree 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tiny-expr-tree 0.1.0 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] crate crates.io crate tiny-expr-tree 0.1.0 already has a lockfile, it will not be regenerated
[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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mask-tracked-array v0.2.0
[INFO] [stderr]   Downloaded bit-iter v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3
[INFO] running `Command { std: "docker" "start" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", 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" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3" "/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" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", 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" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling bit-iter v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling mask-tracked-array v0.2.0
[INFO] [stderr]    Compiling tiny-expr-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", 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" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-expr-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tiny_expr_tree::alloc_gen`
[INFO] [stdout]  --> tests/basic.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     alloc_gen::ConstructableTreeBranch, make_tree_aliases,
[INFO] [stdout]   |     ^^^^^^^^^ could not find `alloc_gen` in `tiny_expr_tree`
[INFO] [stdout]   |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> src/lib.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[cfg(feature = "alloc-gen")]
[INFO] [stdout]   |       --------------------- the item is gated behind the `alloc-gen` feature
[INFO] [stdout] 8 | pub mod alloc_gen;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tiny-expr-tree` (test "basic") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3", kill_on_drop: false }`
[INFO] [stdout] 1d2d5ee4f6b43e000f4073320db60ed7d3a1a0de2046508f12c913d01698e8b3
