[INFO] fetching crate casco 0.4.0...
[INFO] checking casco-0.4.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate casco 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate casco 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12ef6ac311961c8ecd3f294ef95e47881455de7c6ae320121ebd271e43f7c06c
[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" "12ef6ac311961c8ecd3f294ef95e47881455de7c6ae320121ebd271e43f7c06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12ef6ac311961c8ecd3f294ef95e47881455de7c6ae320121ebd271e43f7c06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ef6ac311961c8ecd3f294ef95e47881455de7c6ae320121ebd271e43f7c06c", kill_on_drop: false }`
[INFO] [stdout] 12ef6ac311961c8ecd3f294ef95e47881455de7c6ae320121ebd271e43f7c06c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c793ac2ab5eb8f52ea9a752115c845ce4bcb6fd97ef45e78bf0c65201c36d438
[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" "c793ac2ab5eb8f52ea9a752115c845ce4bcb6fd97ef45e78bf0c65201c36d438", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "inspect" "c793ac2ab5eb8f52ea9a752115c845ce4bcb6fd97ef45e78bf0c65201c36d438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c793ac2ab5eb8f52ea9a752115c845ce4bcb6fd97ef45e78bf0c65201c36d438", kill_on_drop: false }`
[INFO] [stdout] c793ac2ab5eb8f52ea9a752115c845ce4bcb6fd97ef45e78bf0c65201c36d438
