[INFO] fetching crate armv8a_semihosting 0.0.1...
[INFO] testing armv8a_semihosting-0.0.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate armv8a_semihosting 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate armv8a_semihosting 0.0.1
[INFO] finished tweaking crates.io crate armv8a_semihosting 0.0.1
[INFO] tweaked toml for crates.io crate armv8a_semihosting 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate armv8a_semihosting 0.0.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e86a8a8541f4db48a07946ea227003a5721b89779e8bdd853cc600cc1ddb6e3e
[INFO] running `Command { std: "docker" "start" "-a" "e86a8a8541f4db48a07946ea227003a5721b89779e8bdd853cc600cc1ddb6e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e86a8a8541f4db48a07946ea227003a5721b89779e8bdd853cc600cc1ddb6e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e86a8a8541f4db48a07946ea227003a5721b89779e8bdd853cc600cc1ddb6e3e", kill_on_drop: false }`
[INFO] [stdout] e86a8a8541f4db48a07946ea227003a5721b89779e8bdd853cc600cc1ddb6e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 723568ea5c1335e258571c5e0a4587a394e957b1aba475a2002db98f6bdd5c5c
[INFO] running `Command { std: "docker" "start" "-a" "723568ea5c1335e258571c5e0a4587a394e957b1aba475a2002db98f6bdd5c5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling armv8a_semihosting v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid register `x0`: unknown register
[INFO] [stdout]   --> src/lib.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     asm!("hlt #0xF000", inout("x0") nr => nr, in("x1") arg);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x1`: unknown register
[INFO] [stdout]   --> src/lib.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 |     asm!("hlt #0xF000", inout("x0") nr => nr, in("x1") arg);
[INFO] [stdout]    |                                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0605]: non-primitive cast: `()` as `isize`
[INFO] [stdout]   --> src/hio.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |       match unsafe { syscall!(OPEN, name.as_ptr(), mode, name.len() - 1) } as
[INFO] [stdout]    |  ___________^
[INFO] [stdout] 61 | |         isize {
[INFO] [stdout]    | |_____________^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/hio.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         match unsafe { syscall!(WRITE, fd, buffer.as_ptr(), buffer.len()) } {
[INFO] [stdout]    |               ------------------------------------------------------------- this expression has type `()`
[INFO] [stdout] 70 |             // Done
[INFO] [stdout] 71 |             0 => return Ok(()),
[INFO] [stdout]    |             ^ expected `()`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/hio.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |             n if n <= buffer.len() => {
[INFO] [stdout]    |                  -    ^^^^^^^^^^^^ expected `()`, found `usize`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  expected because this is `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `()` from `usize`
[INFO] [stdout]   --> src/hio.rs:74:44
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 let offset = (buffer.len() - n) as isize;
[INFO] [stdout]    |                                            ^ no implementation for `usize - ()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sub<()>` is not implemented for `usize`
[INFO] [stdout] help: the following other types implement trait `Sub<Rhs>`
[INFO] [stdout]   --> /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/arith.rs:227:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: `&usize` implements `Sub<usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `&usize` implements `Sub`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `usize` implements `Sub<&usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `usize` implements `Sub`
[INFO] [stdout]    = note: this error originates in the macro `sub_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/hio.rs:76:75
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     slice::from_raw_parts(buffer.as_ptr().offset(offset), n)
[INFO] [stdout]    |                     ---------------------                                 ^ expected `usize`, found `()`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/slice/raw.rs:124:20
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0605.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `armv8a_semihosting` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "723568ea5c1335e258571c5e0a4587a394e957b1aba475a2002db98f6bdd5c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723568ea5c1335e258571c5e0a4587a394e957b1aba475a2002db98f6bdd5c5c", kill_on_drop: false }`
[INFO] [stdout] 723568ea5c1335e258571c5e0a4587a394e957b1aba475a2002db98f6bdd5c5c
