[INFO] cloning repository https://github.com/kerwanp/kerwanos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kerwanp/kerwanos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwanp%2Fkerwanos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwanp%2Fkerwanos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 114551b777e66646031702486bca9418dc0f5189
[INFO] checking kerwanp/kerwanos against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwanp%2Fkerwanos" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/kerwanp/kerwanos
[INFO] finished tweaking git repo https://github.com/kerwanp/kerwanos
[INFO] tweaked toml for git repo https://github.com/kerwanp/kerwanos written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kerwanp/kerwanos on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kerwanp/kerwanos 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.8.2
[INFO] [stderr]   Downloaded conquer-util v0.3.0
[INFO] [stderr]   Downloaded volatile v0.5.1
[INFO] [stderr]   Downloaded conquer-once v0.4.0
[INFO] [stderr]   Downloaded snafu v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 455c2c4634c62d043df4005526be89fea5a5a7fd6956ed3b356d6ac8b46c32b0
[INFO] running `Command { std: "docker" "start" "-a" "455c2c4634c62d043df4005526be89fea5a5a7fd6956ed3b356d6ac8b46c32b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "455c2c4634c62d043df4005526be89fea5a5a7fd6956ed3b356d6ac8b46c32b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455c2c4634c62d043df4005526be89fea5a5a7fd6956ed3b356d6ac8b46c32b0", kill_on_drop: false }`
[INFO] [stdout] 455c2c4634c62d043df4005526be89fea5a5a7fd6956ed3b356d6ac8b46c32b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 419627737d04f88de97b3f21c8bbb9cde7884365da227914e3a5b106add03a83
[INFO] running `Command { std: "docker" "start" "-a" "419627737d04f88de97b3f21c8bbb9cde7884365da227914e3a5b106add03a83", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bootloader v0.9.28
[INFO] [stderr]     Checking conquer-util v0.3.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking conquer-once v0.4.0
[INFO] [stderr]     Checking pc-keyboard v0.7.0
[INFO] [stderr]     Checking volatile v0.5.1
[INFO] [stderr]     Checking virtio v0.1.0 (/opt/rustwide/workdir/crates/virtio)
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stdout] warning: struct `VirtioPciCap` is never constructed
[INFO] [stdout]  --> crates/virtio/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct VirtioPciCap {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VirtioPciCap` is never constructed
[INFO] [stdout]  --> crates/virtio/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct VirtioPciCap {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]     Checking linked_list_allocator v0.9.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling snafu-derive v0.8.2
[INFO] [stderr]     Checking snafu v0.8.2
[INFO] [stderr]     Checking x86 v0.1.0 (/opt/rustwide/workdir/crates/x86)
[INFO] [stdout] warning: unused import: `dt::DescriptorTable`
[INFO] [stdout]  --> crates/x86/src/segmentation/mod.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{dt::DescriptorTable, PrivilegeLevel};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dt::DescriptorTable`
[INFO] [stdout]  --> crates/x86/src/segmentation/mod.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{dt::DescriptorTable, PrivilegeLevel};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/registers/control.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/registers/rflags.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> crates/x86/src/structures/paging/mapper/mapped_page_table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/structures/paging/page_table.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/registers/control.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/registers/rflags.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitflags::Flags`
[INFO] [stdout]  --> crates/x86/src/structures/paging/mapper/mapped_page_table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bitflags::Flags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flags`
[INFO] [stdout]  --> crates/x86/src/structures/paging/page_table.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bitflags::{bitflags, Flags};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]   --> crates/x86/src/segmentation/mod.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 "1:",
[INFO] [stdout]    |                  ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: start numbering with `2` instead
[INFO] [stdout]    = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]    = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout]    = note: `#[deny(binary_asm_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]   --> crates/x86/src/segmentation/mod.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 "1:",
[INFO] [stdout]    |                  ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: start numbering with `2` instead
[INFO] [stdout]    = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]    = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout]    = note: `#[deny(binary_asm_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86` (lib) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "419627737d04f88de97b3f21c8bbb9cde7884365da227914e3a5b106add03a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419627737d04f88de97b3f21c8bbb9cde7884365da227914e3a5b106add03a83", kill_on_drop: false }`
[INFO] [stdout] 419627737d04f88de97b3f21c8bbb9cde7884365da227914e3a5b106add03a83