[INFO] crate enclave-example 0.1.4 is already in cache
[INFO] extracting crate enclave-example 0.1.4 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/enclave-example/0.1.4
[INFO] extracting crate enclave-example 0.1.4 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/enclave-example/0.1.4
[INFO] validating manifest of enclave-example-0.1.4 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of enclave-example-0.1.4 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing enclave-example-0.1.4
[INFO] finished frobbing enclave-example-0.1.4
[INFO] frobbed toml for enclave-example-0.1.4 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/enclave-example/0.1.4/Cargo.toml
[INFO] started frobbing enclave-example-0.1.4
[INFO] finished frobbing enclave-example-0.1.4
[INFO] frobbed toml for enclave-example-0.1.4 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/enclave-example/0.1.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking enclave-example-0.1.4 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/enclave-example/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ddb8d2d6e236cd417ca0e339260849e0d747e9823318367847ce42a0fd050b52
[INFO] running `"docker" "start" "-a" "ddb8d2d6e236cd417ca0e339260849e0d747e9823318367847ce42a0fd050b52"`
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]    Compiling enclave v0.1.4
[INFO] [stderr]    Compiling core_io v0.1.20190701
[INFO] [stderr]     Checking sgx-isa v0.1.2
[INFO] [stderr]     Checking alloc_buddy_simple2 v0.1.2
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/lib.rs:12:56
[INFO] [stderr]    |
[INFO] [stderr] 12 | #![cfg_attr(feature = "use-as-rust-allocator", feature(allocator, const_fn))]
[INFO] [stderr]    |                                                        ^^^^^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/lib.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![cfg_attr(feature = "use-as-rust-allocator", allocator)]
[INFO] [stderr]    |                                                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/54726
[INFO] [stderr]    = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute macro `allocator` in this scope
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/lib.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![cfg_attr(feature = "use-as-rust-allocator", allocator)]
[INFO] [stderr]    |                                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:81:3
[INFO] [stderr]    |
[INFO] [stderr] 81 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:97:3
[INFO] [stderr]    |
[INFO] [stderr] 97 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         assert!(result.is_power_of_2());
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         assert!(result >= self && self > result >> 1);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     assert_eq!(false, 0.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     assert_eq!(false, 0.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     assert_eq!(false, 0.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     assert_eq!(false, 0.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_eq!(true,  1.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_eq!(true,  1.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_eq!(true,  1.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     assert_eq!(true,  1.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     assert_eq!(true,  2.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     assert_eq!(true,  2.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     assert_eq!(true,  2.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     assert_eq!(true,  2.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     assert_eq!(false, 3.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     assert_eq!(false, 3.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     assert_eq!(false, 3.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     assert_eq!(false, 3.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     assert_eq!(true,  4.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     assert_eq!(true,  4.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     assert_eq!(true,  4.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     assert_eq!(true,  4.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     assert_eq!(false, 255.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     assert_eq!(false, 255.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     assert_eq!(false, 255.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     assert_eq!(false, 255.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     assert_eq!(true,  256.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     assert_eq!(true,  256.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     assert_eq!(true,  256.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     assert_eq!(true,  256.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     assert_eq!(false, 257.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     assert_eq!(false, 257.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     assert_eq!(false, 257.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     assert_eq!(false, 257.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     assert_eq!(false, 4294967295.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     assert_eq!(false, 4294967295.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     assert_eq!(false, 4294967295.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     assert_eq!(false, 4294967295.is_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |         assert_eq!(false, 18446744073709551615.is_power_of_2());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |         assert_eq!(false, 18446744073709551615.is_power_of_2());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |         assert_eq!(false, 18446744073709551615.is_power_of_2());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |         assert_eq!(false, 18446744073709551615.is_power_of_2());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     assert_eq!(1,  0.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     assert_eq!(1,  0.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     assert_eq!(1,  0.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     assert_eq!(1,  0.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     assert_eq!(1,  1.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     assert_eq!(1,  1.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     assert_eq!(1,  1.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     assert_eq!(1,  1.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     assert_eq!(2,  2.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     assert_eq!(2,  2.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     assert_eq!(2,  2.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     assert_eq!(2,  2.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     assert_eq!(4,  3.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     assert_eq!(4,  3.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     assert_eq!(4,  3.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     assert_eq!(4,  3.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     assert_eq!(4,  4.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     assert_eq!(4,  4.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     assert_eq!(4,  4.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     assert_eq!(4,  4.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     assert_eq!(8,  5.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     assert_eq!(8,  5.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     assert_eq!(8,  5.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     assert_eq!(8,  5.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     assert_eq!(8,  8.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     assert_eq!(8,  8.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     assert_eq!(8,  8.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     assert_eq!(8,  8.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     assert_eq!(16, 9.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     assert_eq!(16, 9.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     assert_eq!(16, 9.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     assert_eq!(16, 9.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(16, 16.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(16, 16.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(16, 16.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(16, 16.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assert_eq!(32, 17.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assert_eq!(32, 17.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assert_eq!(32, 17.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assert_eq!(32, 17.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     assert_eq!(32, 32.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     assert_eq!(32, 32.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     assert_eq!(32, 32.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     assert_eq!(32, 32.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     assert_eq!(8388608, 8376263.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     assert_eq!(8388608, 8376263.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     assert_eq!(8388608, 8376263.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     assert_eq!(8388608, 8376263.next_power_of_2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     assert_eq!(0, 0.log2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     assert_eq!(0, 0.log2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     assert_eq!(0, 0.log2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     assert_eq!(0, 0.log2());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     assert_eq!(0, 1.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     assert_eq!(0, 1.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     assert_eq!(0, 1.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     assert_eq!(0, 1.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     assert_eq!(1, 2.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     assert_eq!(1, 2.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     assert_eq!(1, 2.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     assert_eq!(1, 2.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     assert_eq!(5, 32.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     assert_eq!(5, 32.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     assert_eq!(5, 32.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     assert_eq!(5, 32.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     assert_eq!(10, 1024.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     assert_eq!(10, 1024.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     assert_eq!(10, 1024.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/math.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     assert_eq!(10, 1024.log2());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         assert!(heap_base != ptr::null_mut());
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         assert!(free_lists.len() > 0);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         assert_eq!(heap_base as usize & (MIN_HEAP_ALIGN-1), 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         assert_eq!(heap_base as usize & (MIN_HEAP_ALIGN-1), 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         assert_eq!(heap_base as usize & (MIN_HEAP_ALIGN-1), 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         assert_eq!(heap_base as usize & (MIN_HEAP_ALIGN-1), 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         assert!(heap_size >= min_block_size);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         assert!(min_block_size >= size_of::<FreeBlock>());
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `assert`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         assert!(heap_size.is_power_of_2());
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `format_args`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | /         assert_eq!(min_block_size *
[INFO] [stderr] 107 | |                    (2u32.pow(free_lists.len() as u32 - 1)) as usize,
[INFO] [stderr] 108 | |                    heap_size);
[INFO] [stderr]     | |______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `file`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | /         assert_eq!(min_block_size *
[INFO] [stderr] 107 | |                    (2u32.pow(free_lists.len() as u32 - 1)) as usize,
[INFO] [stderr] 108 | |                    heap_size);
[INFO] [stderr]     | |______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `line`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | /         assert_eq!(min_block_size *
[INFO] [stderr] 107 | |                    (2u32.pow(free_lists.len() as u32 - 1)) as usize,
[INFO] [stderr] 108 | |                    heap_size);
[INFO] [stderr]     | |______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the macro `__rust_unstable_column`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/alloc_buddy_simple2-0.1.2/src/heap.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | /         assert_eq!(min_block_size *
[INFO] [stderr] 107 | |                    (2u32.pow(free_lists.len() as u32 - 1)) as usize,
[INFO] [stderr] 108 | |                    heap_size);
[INFO] [stderr]     | |______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 129 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0557`.
[INFO] [stderr] error: Could not compile `alloc_buddy_simple2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ddb8d2d6e236cd417ca0e339260849e0d747e9823318367847ce42a0fd050b52"`
[INFO] running `"docker" "rm" "-f" "ddb8d2d6e236cd417ca0e339260849e0d747e9823318367847ce42a0fd050b52"`
[INFO] [stdout] ddb8d2d6e236cd417ca0e339260849e0d747e9823318367847ce42a0fd050b52