[INFO] fetching crate mmslice 0.1.0...
[INFO] extracting crate mmslice 0.1.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/mmslice/0.1.0
[INFO] extracting crate mmslice 0.1.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mmslice/0.1.0
[INFO] validating manifest of mmslice-0.1.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mmslice-0.1.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mmslice-0.1.0
[INFO] finished frobbing mmslice-0.1.0
[INFO] frobbed toml for mmslice-0.1.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/mmslice/0.1.0/Cargo.toml
[INFO] started frobbing mmslice-0.1.0
[INFO] finished frobbing mmslice-0.1.0
[INFO] frobbed toml for mmslice-0.1.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mmslice/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mmslice-0.1.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mmslice/0.1.0:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 15221664d5abc650248b3a27fce60e359339408dc15055e022cbaf57b57d646e
[INFO] running `"docker" "start" "-a" "15221664d5abc650248b3a27fce60e359339408dc15055e022cbaf57b57d646e"`
[INFO] [stderr]     Checking mmslice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0658]: The attribute `unsafe_destructor` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/lib.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 | #[unsafe_destructor]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr]    = help: add #![feature(custom_attribute)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::os::MemoryMap`, `std::os::MapOption`
[INFO] [stderr]  --> src/lib.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::os::{MemoryMap, MapOption};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^^^ no `MapOption` in `os`
[INFO] [stderr]   |               |
[INFO] [stderr]   |               no `MemoryMap` in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::os::unix::AsRawFd`
[INFO] [stderr]  --> src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::os::unix::AsRawFd;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `AsRawFd` in `os::unix`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::num::Int`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsSlice` in this scope
[INFO] [stderr]   --> src/lib.rs:78:15
[INFO] [stderr]    |
[INFO] [stderr] 78 | impl<T:Sized> AsSlice<T> for MmapSlice<T> {
[INFO] [stderr]    |               ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `mmslice`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0658]: The attribute `unsafe_destructor` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]   --> src/lib.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 | #[unsafe_destructor]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr]    = help: add #![feature(custom_attribute)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::os::MemoryMap`, `std::os::MapOption`
[INFO] [stderr]  --> src/lib.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::os::{MemoryMap, MapOption};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^^^ no `MapOption` in `os`
[INFO] [stderr]   |               |
[INFO] [stderr]   |               no `MemoryMap` in `os`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::os::unix::AsRawFd`
[INFO] [stderr]  --> src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::os::unix::AsRawFd;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `AsRawFd` in `os::unix`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::num::Int`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsSlice` in this scope
[INFO] [stderr]   --> src/lib.rs:78:15
[INFO] [stderr]    |
[INFO] [stderr] 78 | impl<T:Sized> AsSlice<T> for MmapSlice<T> {
[INFO] [stderr]    |               ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `mmslice`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "15221664d5abc650248b3a27fce60e359339408dc15055e022cbaf57b57d646e"`
[INFO] running `"docker" "rm" "-f" "15221664d5abc650248b3a27fce60e359339408dc15055e022cbaf57b57d646e"`
[INFO] [stdout] 15221664d5abc650248b3a27fce60e359339408dc15055e022cbaf57b57d646e