[INFO] fetching crate understory_overlay 0.1.0...
[INFO] testing understory_overlay-0.1.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate understory_overlay 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate understory_overlay 0.1.0
[INFO] finished tweaking crates.io crate understory_overlay 0.1.0
[INFO] tweaked toml for crates.io crate understory_overlay 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate understory_overlay 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 understory_overlay 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 libm v0.2.16
[INFO] [stderr]   Downloaded understory_anchor v0.1.0
[INFO] [stderr]   Downloaded autocfg v1.5.0
[INFO] [stderr]   Downloaded polycool v0.4.0
[INFO] [stderr]   Downloaded euclid v0.22.11
[INFO] [stderr]   Downloaded kurbo v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329
[INFO] running `Command { std: "docker" "start" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", 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" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329" "/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" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", 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" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling polycool v0.4.0
[INFO] [stderr]    Compiling kurbo v0.13.1
[INFO] [stderr]    Compiling understory_anchor v0.1.0
[INFO] [stderr]    Compiling understory_overlay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", 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" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329" "/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 understory_overlay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find type `Vec` in this scope
[INFO] [stdout]    --> src/stack.rs:834:28
[INFO] [stdout]     |
[INFO] [stdout] 834 |                 .collect::<Vec<_>>(),
[INFO] [stdout]     |                            ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout] 702 +     use crate::stack::Vec;
[INFO] [stdout]     |
[INFO] [stdout] 702 +     use alloc::vec::Vec;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `understory_overlay` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329", kill_on_drop: false }`
[INFO] [stdout] 0ff10b80b4b3a0c6adf92c60a2ba1e03adc3351ee3648b4c974f93d0d6ec9329
