[INFO] cloning repository https://github.com/zll600/simple-rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zll600/simple-rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzll600%2Fsimple-rust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzll600%2Fsimple-rust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40f1d78b05666e646ecab30a5cebbab2cf447f10
[INFO] testing zll600/simple-rust-os against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzll600%2Fsimple-rust-os" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/zll600/simple-rust-os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/zll600/simple-rust-os
[INFO] tweaked toml for git repo https://github.com/zll600/simple-rust-os written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zll600/simple-rust-os 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] crate git repo https://github.com/zll600/simple-rust-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c274249219ce09619ee716b9015ba62734f21f9798a882e74b011b4777a78313
[INFO] running `Command { std: "docker" "start" "-a" "c274249219ce09619ee716b9015ba62734f21f9798a882e74b011b4777a78313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c274249219ce09619ee716b9015ba62734f21f9798a882e74b011b4777a78313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c274249219ce09619ee716b9015ba62734f21f9798a882e74b011b4777a78313", kill_on_drop: false }`
[INFO] [stdout] c274249219ce09619ee716b9015ba62734f21f9798a882e74b011b4777a78313
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e103f949330903c9b81a2df27965665cb954d6c8c0383f5c6b31ba16af25f7f1
[INFO] running `Command { std: "docker" "start" "-a" "e103f949330903c9b81a2df27965665cb954d6c8c0383f5c6b31ba16af25f7f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling bootloader v0.9.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling conquer-util v0.2.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling conquer-once v0.2.1
[INFO] [stderr]    Compiling pc-keyboard v0.7.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling spinning_top v0.2.5
[INFO] [stderr]    Compiling linked_list_allocator v0.9.1
[INFO] [stderr]    Compiling x86_64 v0.14.13
[INFO] [stderr]    Compiling pic8259 v0.10.4
[INFO] [stderr]    Compiling uart_16550 v0.2.19
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/allocator.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn lock(&self) -> spin::MutexGuard<A> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn lock(&self) -> spin::MutexGuard<'_, A> {
[INFO] [stdout]    |                                            +++
[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] [stderr] error: could not compile `blog_os` (bin "blog_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e103f949330903c9b81a2df27965665cb954d6c8c0383f5c6b31ba16af25f7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e103f949330903c9b81a2df27965665cb954d6c8c0383f5c6b31ba16af25f7f1", kill_on_drop: false }`
[INFO] [stdout] e103f949330903c9b81a2df27965665cb954d6c8c0383f5c6b31ba16af25f7f1