[INFO] cloning repository https://github.com/RobbinDG/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RobbinDG/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbinDG%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbinDG%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e838b9062a3556287e812e46122945dff335261
[INFO] fixing RobbinDG/os against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobbinDG%2Fos" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/RobbinDG/os
[INFO] finished tweaking git repo https://github.com/RobbinDG/os
[INFO] tweaked toml for git repo https://github.com/RobbinDG/os written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RobbinDG/os on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RobbinDG/os 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell_no_std v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3
[INFO] running `Command { std: "docker" "start" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell_no_std v0.1.1
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]     Checking os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `KERNEL` in this scope
[INFO] [stdout]    --> src/shell.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             KERNEL.mem.with_unwrap(|mem_mgr| {
[INFO] [stdout]     |             ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] note: static `crate::kernel::KERNEL` exists but is inaccessible
[INFO] [stdout]    --> src/kernel/mod.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout]  21 | pub(self) static KERNEL: Kernel = Kernel::new();
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not accessible
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `switch_context`
[INFO] [stdout]  --> src/kernel/process_manager.rs:1:71
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::kernel::platform::i386::context_switch::{ProcessCtrlBlock, switch_context};
[INFO] [stdout]   |                                                                       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]    --> src/kernel/platform/i386/context_switch.rs:135:19
[INFO] [stdout]     |
[INFO] [stdout] 135 |         asm!("mov {esp0}, esp", esp0 = out(reg) tss.esp0);
[INFO] [stdout]     |                   ^^^^^^                        -------- for this argument
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values)
[INFO] [stdout]     = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values)
[INFO] [stdout]     = note: `#[warn(asm_sub_register)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/kernel/mem.rs:40:34
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub unsafe fn map(&mut self, size: usize, align: bool) -> *mut () {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `align`
[INFO] [stdout]   --> src/kernel/mem.rs:40:47
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub unsafe fn map(&mut self, size: usize, align: bool) -> *mut () {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_align`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> src/kernel/mem.rs:47:56
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub unsafe fn unmap(&mut self, virt_addr: *mut (), length: usize) {
[INFO] [stdout]    |                                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3", kill_on_drop: false }`
[INFO] [stdout] 21fe406d2e20dd2c12ffb7d6cdd95270c62caa197c13469a07f671526d04d6c3
