[INFO] fetching crate casco 0.4.0...
[INFO] checking casco-0.4.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate casco 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate casco 0.4.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casco 0.4.0
[INFO] finished tweaking crates.io crate casco 0.4.0
[INFO] tweaked toml for crates.io crate casco 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c36db889715c4b04e6aa30854b23c9cdcd8cac4dcffcc35d3e1355312ac7364
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9c36db889715c4b04e6aa30854b23c9cdcd8cac4dcffcc35d3e1355312ac7364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c36db889715c4b04e6aa30854b23c9cdcd8cac4dcffcc35d3e1355312ac7364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c36db889715c4b04e6aa30854b23c9cdcd8cac4dcffcc35d3e1355312ac7364", kill_on_drop: false }`
[INFO] [stdout] 9c36db889715c4b04e6aa30854b23c9cdcd8cac4dcffcc35d3e1355312ac7364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b246c92d220af018195e3142ba60b543f4dc8ba844d33e6adb0252f52487ea09
[INFO] running `Command { std: "docker" "start" "-a" "b246c92d220af018195e3142ba60b543f4dc8ba844d33e6adb0252f52487ea09", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking proc-macro2 v1.0.32
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking casco v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::lexer`
[INFO] [stdout]    --> src/cascade.rs:297:16
[INFO] [stdout]     |
[INFO] [stdout] 297 |     use crate::lexer::lex;
[INFO] [stdout]     |                ^^^^^ could not find `lexer` in the crate root
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casco` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b246c92d220af018195e3142ba60b543f4dc8ba844d33e6adb0252f52487ea09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b246c92d220af018195e3142ba60b543f4dc8ba844d33e6adb0252f52487ea09", kill_on_drop: false }`
[INFO] [stdout] b246c92d220af018195e3142ba60b543f4dc8ba844d33e6adb0252f52487ea09