[INFO] fetching crate slitter 0.1.0...
[INFO] testing slitter-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate slitter 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate slitter 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slitter 0.1.0
[INFO] finished tweaking crates.io crate slitter 0.1.0
[INFO] tweaked toml for crates.io crate slitter 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43010e5df58056cf63fe9ba7af19a07a22c6b3c992bad7eaf99080a9c8248d14
[INFO] running `Command { std: "docker" "start" "-a" "43010e5df58056cf63fe9ba7af19a07a22c6b3c992bad7eaf99080a9c8248d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43010e5df58056cf63fe9ba7af19a07a22c6b3c992bad7eaf99080a9c8248d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43010e5df58056cf63fe9ba7af19a07a22c6b3c992bad7eaf99080a9c8248d14", kill_on_drop: false }`
[INFO] [stdout] 43010e5df58056cf63fe9ba7af19a07a22c6b3c992bad7eaf99080a9c8248d14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c550002730777fb31fcc8341d1bd067ddc7fd7703150b8ce90daaba77e29ff6b
[INFO] running `Command { std: "docker" "start" "-a" "c550002730777fb31fcc8341d1bd067ddc7fd7703150b8ce90daaba77e29ff6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling disabled_contracts v0.1.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling slitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/class.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub name: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/class.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub id: Class,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "c550002730777fb31fcc8341d1bd067ddc7fd7703150b8ce90daaba77e29ff6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c550002730777fb31fcc8341d1bd067ddc7fd7703150b8ce90daaba77e29ff6b", kill_on_drop: false }`
[INFO] [stdout] c550002730777fb31fcc8341d1bd067ddc7fd7703150b8ce90daaba77e29ff6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1a8fdbb53a60bf33a5e4afa6ae51514b395354b52e2d1bdc97d244bf9964719
[INFO] running `Command { std: "docker" "start" "-a" "b1a8fdbb53a60bf33a5e4afa6ae51514b395354b52e2d1bdc97d244bf9964719", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/class.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub name: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/class.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub id: Class,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling proptest v1.0.0
[INFO] [stderr]    Compiling contracts v0.6.2
[INFO] [stderr]    Compiling slitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/cache.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     #[invariant(self.check_rep_or_err().is_ok(), "Internal invariants hold.")]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     mutable borrow occurs here
[INFO] [stdout]     |     immutable borrow occurs here
[INFO] [stdout]     |     immutable borrow later used by call
[INFO] [stdout] ...
[INFO] [stdout] 211 |                 assert!(self.per_class_info.is_empty());
[INFO] [stdout]     |                         ------------------- first borrow occurs due to use of `self` in closure
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `invariant` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `self`
[INFO] [stdout]    --> src/mill.rs:497:43
[INFO] [stdout]     |
[INFO] [stdout] 495 | /     #[invariant(debug_arange_map::is_metadata(self.meta as usize, METADATA_PAGE_SIZE).is_ok(),
[INFO] [stdout] 496 | |                "The metadata region is marked as such.")]
[INFO] [stdout]     | |_________________________________________________________- value moved here
[INFO] [stdout] 497 |       #[invariant(debug_arange_map::is_data(self.data as usize, DATA_ALIGNMENT).is_ok(),
[INFO] [stdout]     |                                             ^^^^^^^^^ value used here after move
[INFO] [stdout] 498 |                  "The data region is marked as such.")]
[INFO] [stdout] 499 |       fn commit(self) -> Result<(), i32> {
[INFO] [stdout]     |                 ---- move occurs because `self` has type `AllocatedChunk<'_>`, which does not implement the `Copy` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0382, E0502.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stderr] warning: cargo:rustc-cdylib-link-arg was specified in the build script of slitter v0.1.0 (/opt/rustwide/workdir), but that package does not contain a cdylib target
[INFO] [stderr] 
[INFO] [stderr] Allowing this was an unintended change in the 1.50 release, and may become an error in the future. For more information, see <https://github.com/rust-lang/cargo/issues/9562>.
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `slitter`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b1a8fdbb53a60bf33a5e4afa6ae51514b395354b52e2d1bdc97d244bf9964719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1a8fdbb53a60bf33a5e4afa6ae51514b395354b52e2d1bdc97d244bf9964719", kill_on_drop: false }`
[INFO] [stdout] b1a8fdbb53a60bf33a5e4afa6ae51514b395354b52e2d1bdc97d244bf9964719
