[INFO] cloning repository https://github.com/0x5d/os1k
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0x5d/os1k" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x5d%2Fos1k", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x5d%2Fos1k'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dae8f4818eba694a6363ba47874d996d263d0de1
[INFO] checking 0x5d/os1k against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x5d%2Fos1k" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/0x5d/os1k
[INFO] finished tweaking git repo https://github.com/0x5d/os1k
[INFO] tweaked toml for git repo https://github.com/0x5d/os1k written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0x5d/os1k on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0x5d/os1k already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e40e583c177487ca2d8f84bdb036dcb159a6dc80d327be7166527ea0bc97980
[INFO] running `Command { std: "docker" "start" "-a" "9e40e583c177487ca2d8f84bdb036dcb159a6dc80d327be7166527ea0bc97980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e40e583c177487ca2d8f84bdb036dcb159a6dc80d327be7166527ea0bc97980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e40e583c177487ca2d8f84bdb036dcb159a6dc80d327be7166527ea0bc97980", kill_on_drop: false }`
[INFO] [stdout] 9e40e583c177487ca2d8f84bdb036dcb159a6dc80d327be7166527ea0bc97980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e4d3631baaea8bb2e5a5a604961e09759f6dd8f0bd7d2146cb3a10b24afec9b
[INFO] running `Command { std: "docker" "start" "-a" "2e4d3631baaea8bb2e5a5a604961e09759f6dd8f0bd7d2146cb3a10b24afec9b", kill_on_drop: false }`
[INFO] [stderr]     Checking os1k v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid register `a0`: unknown register
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         inout("a0") arg0,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a1`: unknown register
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         inout("a1") arg1,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a2`: unknown register
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         in("a2") arg2,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a3`: unknown register
[INFO] [stdout]   --> src/lib.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         in("a3") arg3,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a4`: unknown register
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         in("a4") arg4,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a5`: unknown register
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a5") arg5,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a6`: unknown register
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         in("a6") fid,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a7`: unknown register
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         in("a7") eid,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a0`: unknown register
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         inout("a0") arg0,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a1`: unknown register
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         inout("a1") arg1,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a2`: unknown register
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         in("a2") arg2,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a3`: unknown register
[INFO] [stdout]   --> src/lib.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         in("a3") arg3,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a4`: unknown register
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         in("a4") arg4,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a5`: unknown register
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a5") arg5,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a6`: unknown register
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         in("a6") fid,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a7`: unknown register
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         in("a7") eid,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/common/print.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | const HEX_CHARSET: [c_char; 16] = *b"0123456789abcdef";
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^ expected `[i8; 16]`, found `[u8; 16]`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected array `[i8; 16]`
[INFO] [stdout]              found array `[u8; 16]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if *fmt != b'%' {
[INFO] [stdout]    |            ----    ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            expected because this is `i8`
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if *fmt != b'%'.try_into().unwrap() {
[INFO] [stdout]    |                        ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] 26 |             // If it's a null char, we've reached the end.
[INFO] [stdout] 27 |             b'\0' => break,
[INFO] [stdout]    |             ^^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 29 |             b'%' => putchar(b'%'),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 32 |             b's' => print_str(args.arg::<*const c_char>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 34 |             b'd' => print_i32(args.arg::<i32>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 36 |             b'x' => print_hex(args.arg::<u32>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |             b'%' => putchar(b'%'),
[INFO] [stdout]    |                     ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 29 |             b'%' => putchar(b'%'.try_into().unwrap()),
[INFO] [stdout]    |                                 ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         putchar(b'0');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 52 |         putchar(b'0'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |         putchar(b'-');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 56 |         putchar(b'-'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let d = b'0' + (val / divisor) as c_char;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `u8`, found `i8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/common/print.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | const HEX_CHARSET: [c_char; 16] = *b"0123456789abcdef";
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^^ expected `[i8; 16]`, found `[u8; 16]`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected array `[i8; 16]`
[INFO] [stdout]              found array `[u8; 16]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if *fmt != b'%' {
[INFO] [stdout]    |            ----    ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            expected because this is `i8`
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if *fmt != b'%'.try_into().unwrap() {
[INFO] [stdout]    |                        ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] 26 |             // If it's a null char, we've reached the end.
[INFO] [stdout] 27 |             b'\0' => break,
[INFO] [stdout]    |             ^^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 29 |             b'%' => putchar(b'%'),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 32 |             b's' => print_str(args.arg::<*const c_char>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 34 |             b'd' => print_i32(args.arg::<i32>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         match *fmt {
[INFO] [stdout]    |               ---- this expression has type `i8`
[INFO] [stdout] ...
[INFO] [stdout] 36 |             b'x' => print_hex(args.arg::<u32>()),
[INFO] [stdout]    |             ^^^^ expected `i8`, found `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |             b'%' => putchar(b'%'),
[INFO] [stdout]    |                     ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 29 |             b'%' => putchar(b'%'.try_into().unwrap()),
[INFO] [stdout]    |                                 ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         putchar(b'0');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 52 |         putchar(b'0'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |         putchar(b'-');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 56 |         putchar(b'-'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let d = b'0' + (val / divisor) as c_char;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `u8`, found `i8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot add `i8` to `u8`
[INFO] [stdout]   --> src/common/print.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let d = b'0' + (val / divisor) as c_char;
[INFO] [stdout]    |                      ^ no implementation for `u8 + i8`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Add<i8>` is not implemented for `u8`
[INFO] [stdout]    = help: the following other types implement trait `Add<Rhs>`:
[INFO] [stdout]              `&u8` implements `Add<u8>`
[INFO] [stdout]              `&u8` implements `Add`
[INFO] [stdout]              `u8` implements `Add<&u8>`
[INFO] [stdout]              `u8` implements `Add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |         putchar(d);
[INFO] [stdout]    |         ------- ^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 65 |         putchar(d.try_into().unwrap());
[INFO] [stdout]    |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         putchar(b'0');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 74 |         putchar(b'0'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot add `i8` to `u8`
[INFO] [stdout]   --> src/common/print.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let d = b'0' + (val / divisor) as c_char;
[INFO] [stdout]    |                      ^ no implementation for `u8 + i8`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Add<i8>` is not implemented for `u8`
[INFO] [stdout]    = help: the following other types implement trait `Add<Rhs>`:
[INFO] [stdout]              `&u8` implements `Add<u8>`
[INFO] [stdout]              `&u8` implements `Add`
[INFO] [stdout]              `u8` implements `Add<&u8>`
[INFO] [stdout]              `u8` implements `Add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |         putchar(d);
[INFO] [stdout]    |         ------- ^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 65 |         putchar(d.try_into().unwrap());
[INFO] [stdout]    |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/common/print.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         putchar(b'0');
[INFO] [stdout]    |         ------- ^^^^ expected `i8`, found `u8`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/common/print.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub unsafe fn putchar(ch: c_char) {
[INFO] [stdout]    |               ^^^^^^^ ----------
[INFO] [stdout] help: you can convert a `u8` to an `i8` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 74 |         putchar(b'0'.try_into().unwrap());
[INFO] [stdout]    |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os1k` (lib test) due to 22 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `os1k` (lib) due to 22 previous errors
[INFO] running `Command { std: "docker" "inspect" "2e4d3631baaea8bb2e5a5a604961e09759f6dd8f0bd7d2146cb3a10b24afec9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4d3631baaea8bb2e5a5a604961e09759f6dd8f0bd7d2146cb3a10b24afec9b", kill_on_drop: false }`
[INFO] [stdout] 2e4d3631baaea8bb2e5a5a604961e09759f6dd8f0bd7d2146cb3a10b24afec9b
