[INFO] fetching crate cursebox 0.2.11...
[INFO] checking cursebox-0.2.11 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cursebox 0.2.11 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cursebox 0.2.11 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursebox 0.2.11
[INFO] finished tweaking crates.io crate cursebox 0.2.11
[INFO] tweaked toml for crates.io crate cursebox 0.2.11 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cursebox 0.2.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abort v0.1.3
[INFO] [stderr]   Downloaded idem v0.4.0
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded fallible v0.1.3
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded idem v0.1.1
[INFO] [stderr]   Downloaded hash-table v0.2.5
[INFO] [stderr]   Downloaded ptr v0.2.3
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded chn v0.1.1
[INFO] [stderr]   Downloaded null-terminated v0.3.15
[INFO] [stderr]   Downloaded i-o v0.4.7
[INFO] [stderr]   Downloaded util v0.1.2
[INFO] [stderr]   Downloaded unix v0.6.12
[INFO] [stderr]   Downloaded buf v0.2.3
[INFO] [stderr]   Downloaded utf v0.1.6
[INFO] [stderr]   Downloaded flags v0.1.5
[INFO] [stderr]   Downloaded unix-signal v0.1.4
[INFO] [stderr]   Downloaded subslice v0.2.2
[INFO] [stderr]   Downloaded loca v0.7.2
[INFO] [stderr]   Downloaded system-call v0.1.3
[INFO] [stderr]   Downloaded tempus v0.2.4
[INFO] [stderr]   Downloaded unix-tty v0.3.4
[INFO] [stderr]   Downloaded containers v0.9.12
[INFO] [stderr]   Downloaded libc-interface v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 005dec5fe9ec05c7bd18d9af6dbfa3a972185f55a03c7af6b5f7a70c641c0047
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "005dec5fe9ec05c7bd18d9af6dbfa3a972185f55a03c7af6b5f7a70c641c0047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "005dec5fe9ec05c7bd18d9af6dbfa3a972185f55a03c7af6b5f7a70c641c0047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "005dec5fe9ec05c7bd18d9af6dbfa3a972185f55a03c7af6b5f7a70c641c0047", kill_on_drop: false }`
[INFO] [stdout] 005dec5fe9ec05c7bd18d9af6dbfa3a972185f55a03c7af6b5f7a70c641c0047
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2735917dfcdd73b32ec6179695e830c232881927c5abeb9fc7ec68451154b5ba
[INFO] running `Command { std: "docker" "start" "-a" "2735917dfcdd73b32ec6179695e830c232881927c5abeb9fc7ec68451154b5ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling ptr v0.2.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling hash-table v0.2.5
[INFO] [stderr]    Compiling containers v0.9.12
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking rel v0.2.0
[INFO] [stderr]     Checking abort v0.1.3
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]     Checking heap v0.1.0
[INFO] [stderr]     Checking idem v0.4.0
[INFO] [stderr]     Checking libc-interface v0.1.2
[INFO] [stderr]     Checking utf v0.1.6
[INFO] [stderr]     Checking system-call v0.1.3
[INFO] [stderr]     Checking flags v0.1.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking util v0.1.2
[INFO] [stderr]     Checking chn v0.1.1
[INFO] [stderr]     Checking fallible v0.1.3
[INFO] [stderr]     Checking idem v0.1.1
[INFO] [stderr]     Checking null-terminated v0.3.15
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stdout] error[E0658]: dereferencing raw mutable pointers in constant functions is unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/null-terminated-0.3.15/src/lib.rs:336:72
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub const unsafe fn new_unchecked(p: *const u8) -> &'static Self { &*(p as *mut Self) }
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
[INFO] [stdout]     = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `null-terminated` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2735917dfcdd73b32ec6179695e830c232881927c5abeb9fc7ec68451154b5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2735917dfcdd73b32ec6179695e830c232881927c5abeb9fc7ec68451154b5ba", kill_on_drop: false }`
[INFO] [stdout] 2735917dfcdd73b32ec6179695e830c232881927c5abeb9fc7ec68451154b5ba