[INFO] fetching crate unix-tty 0.3.4...
[INFO] testing unix-tty-0.3.4 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate unix-tty 0.3.4 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate unix-tty 0.3.4 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unix-tty 0.3.4
[INFO] finished tweaking crates.io crate unix-tty 0.3.4
[INFO] tweaked toml for crates.io crate unix-tty 0.3.4 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ptr v0.2.3
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded containers v0.9.13
[INFO] [stderr]   Downloaded hash-table v0.2.5
[INFO] [stderr]   Downloaded libc-interface v0.1.2
[INFO] [stderr]   Downloaded flags v0.1.5
[INFO] [stderr]   Downloaded abort v0.1.3
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded loca v0.7.4
[INFO] [stderr]   Downloaded tempus v0.2.4
[INFO] [stderr]   Downloaded i-o v0.4.7
[INFO] [stderr]   Downloaded unix v0.6.12
[INFO] [stderr]   Downloaded idem v0.4.0
[INFO] [stderr]   Downloaded idem v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff6812842c5d809c71a785880a191d3f3db8d2cf0b6b95bd7aa97ed0670b5a62
[INFO] running `Command { std: "docker" "start" "-a" "ff6812842c5d809c71a785880a191d3f3db8d2cf0b6b95bd7aa97ed0670b5a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff6812842c5d809c71a785880a191d3f3db8d2cf0b6b95bd7aa97ed0670b5a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6812842c5d809c71a785880a191d3f3db8d2cf0b6b95bd7aa97ed0670b5a62", kill_on_drop: false }`
[INFO] [stdout] ff6812842c5d809c71a785880a191d3f3db8d2cf0b6b95bd7aa97ed0670b5a62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091a77f72be25318d0158dcc43b08894e89eb9e281a15032123b8052ff5ca1d7
[INFO] running `Command { std: "docker" "start" "-a" "091a77f72be25318d0158dcc43b08894e89eb9e281a15032123b8052ff5ca1d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling ptr v0.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling hash-table v0.2.5
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling containers v0.9.13
[INFO] [stderr]    Compiling rel v0.2.0
[INFO] [stderr]    Compiling abort v0.1.3
[INFO] [stderr]    Compiling idem v0.4.0
[INFO] [stderr]    Compiling heap v0.1.0
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]    Compiling libc-interface v0.1.2
[INFO] [stderr]    Compiling utf v0.1.6
[INFO] [stderr]    Compiling flags v0.1.5
[INFO] [stderr]    Compiling system-call v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling unix v0.6.12
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling fallible v0.1.3
[INFO] [stderr]    Compiling idem v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling null-terminated v0.3.15
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[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" "091a77f72be25318d0158dcc43b08894e89eb9e281a15032123b8052ff5ca1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091a77f72be25318d0158dcc43b08894e89eb9e281a15032123b8052ff5ca1d7", kill_on_drop: false }`
[INFO] [stdout] 091a77f72be25318d0158dcc43b08894e89eb9e281a15032123b8052ff5ca1d7