[INFO] fetching crate mm_image 0.1.0...
[INFO] checking mm_image-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate mm_image 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mm_image 0.1.0 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 mm_image 0.1.0
[INFO] finished tweaking crates.io crate mm_image 0.1.0
[INFO] tweaked toml for crates.io crate mm_image 0.1.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 232b3a3e2e9ca0715f2a18ece63db38e494af765bea1728653fbd22bf61a0349
[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" "232b3a3e2e9ca0715f2a18ece63db38e494af765bea1728653fbd22bf61a0349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "232b3a3e2e9ca0715f2a18ece63db38e494af765bea1728653fbd22bf61a0349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232b3a3e2e9ca0715f2a18ece63db38e494af765bea1728653fbd22bf61a0349", kill_on_drop: false }`
[INFO] [stdout] 232b3a3e2e9ca0715f2a18ece63db38e494af765bea1728653fbd22bf61a0349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5a59cf3ba8e7bdbff4985be8b3d1cfc7f8a6c1f982df81e8872526b402849f6e
[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" "5a59cf3ba8e7bdbff4985be8b3d1cfc7f8a6c1f982df81e8872526b402849f6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking mm_math v0.0.6
[INFO] [stdout] error[E0432]: unresolved imports `std::num::One`, `std::num::Zero`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mm_math-0.0.6/src/vector.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   One,
[INFO] [stdout]   |   ^^^ no `One` in `num`
[INFO] [stdout] 7 |   Zero,
[INFO] [stdout]   |   ^^^^ no `Zero` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mm_math-0.0.6/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(zero_one)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mm_math` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5a59cf3ba8e7bdbff4985be8b3d1cfc7f8a6c1f982df81e8872526b402849f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a59cf3ba8e7bdbff4985be8b3d1cfc7f8a6c1f982df81e8872526b402849f6e", kill_on_drop: false }`
[INFO] [stdout] 5a59cf3ba8e7bdbff4985be8b3d1cfc7f8a6c1f982df81e8872526b402849f6e
