[INFO] cloning repository https://github.com/goldencm/blanc-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goldencm/blanc-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Fblanc-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Fblanc-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f5a137106d4ed5ce2b870975a0336a83e4fc8c8
[INFO] testing goldencm/blanc-os against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Fblanc-os" "/workspace/builds/worker-47/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/goldencm/blanc-os on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-47/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/goldencm/blanc-os
[INFO] finished tweaking git repo https://github.com/goldencm/blanc-os
[INFO] tweaked toml for git repo https://github.com/goldencm/blanc-os written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmas-elf v0.8.0
[INFO] [stderr]   Downloaded elfloader v0.14.0
[INFO] [stderr]   Downloaded bootloader v0.10.9
[INFO] [stderr]   Downloaded intrusive-collections v0.9.2
[INFO] [stderr]   Downloaded accessor v0.3.3
[INFO] [stderr]   Downloaded font8x8 v0.2.7
[INFO] [stderr]   Downloaded os_units v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e0e00fd331470598d34aa40949fb5ab0c2719ec12387aeac8296b9bda9ff840
[INFO] running `Command { std: "docker" "start" "-a" "2e0e00fd331470598d34aa40949fb5ab0c2719ec12387aeac8296b9bda9ff840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0e00fd331470598d34aa40949fb5ab0c2719ec12387aeac8296b9bda9ff840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0e00fd331470598d34aa40949fb5ab0c2719ec12387aeac8296b9bda9ff840", kill_on_drop: false }`
[INFO] [stdout] 2e0e00fd331470598d34aa40949fb5ab0c2719ec12387aeac8296b9bda9ff840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e1fd56db995cf6db221c9eeba1625817c9a8a86fa34b9e02dfeebf047fed838
[INFO] running `Command { std: "docker" "start" "-a" "4e1fd56db995cf6db221c9eeba1625817c9a8a86fa34b9e02dfeebf047fed838", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling x86_64 v0.14.6
[INFO] [stderr]    Compiling volatile v0.4.4
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bootloader v0.10.9
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling conquer-util v0.2.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling font8x8 v0.2.7
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling accessor v0.3.3
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling pc-keyboard v0.5.1
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling conquer-once v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling xmas-elf v0.8.0
[INFO] [stderr]    Compiling xmas-elf v0.6.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling elfloader v0.14.0
[INFO] [stderr]    Compiling printer v0.1.0 (/opt/rustwide/workdir/crate/printer)
[INFO] [stderr]    Compiling os_units v0.4.2
[INFO] [stderr]    Compiling uart_16550 v0.2.15
[INFO] [stderr]    Compiling pic8259 v0.10.2
[INFO] [stderr]    Compiling intrusive-collections v0.9.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling gdt v0.1.0 (/opt/rustwide/workdir/crate/gdt)
[INFO] [stderr]    Compiling memory v0.1.0 (/opt/rustwide/workdir/crate/memory)
[INFO] [stderr]    Compiling serial v0.1.0 (/opt/rustwide/workdir/crate/serial)
[INFO] [stderr]    Compiling coop v0.1.0 (/opt/rustwide/workdir/crate/coop)
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling fs v0.1.0 (/opt/rustwide/workdir/crate/fs)
[INFO] [stderr]    Compiling task v0.1.0 (/opt/rustwide/workdir/crate/task)
[INFO] [stdout] warning: unused variable: `flags`
[INFO] [stdout]   --> crate/task/src/elf.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         flags: elfloader::Flags,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_flags`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling interrupts v0.1.0 (/opt/rustwide/workdir/crate/interrupts)
[INFO] [stdout] warning: unused import: `memory::swap_to_kernel_table`
[INFO] [stdout]   --> crate/interrupts/src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use memory::swap_to_kernel_table;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serial::serial_println`
[INFO] [stdout]   --> crate/interrupts/src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use serial::serial_println;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `println`
[INFO] [stdout]  --> crate/interrupts/src/syscall.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use printer::{print, println};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::InterruptIndex`
[INFO] [stdout]   --> crate/interrupts/src/syscall.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     use crate::InterruptIndex;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Task`
[INFO] [stdout]   --> crate/interrupts/src/syscall.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use task::task::{Task, TaskState};
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `running_task_mut` found for struct `MutexGuard<'_, Scheduler>` in the current scope
[INFO] [stdout]   --> crate/interrupts/src/syscall.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let running_task = scheduler.running_task_mut();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `running_task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interrupts` due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4e1fd56db995cf6db221c9eeba1625817c9a8a86fa34b9e02dfeebf047fed838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1fd56db995cf6db221c9eeba1625817c9a8a86fa34b9e02dfeebf047fed838", kill_on_drop: false }`
[INFO] [stdout] 4e1fd56db995cf6db221c9eeba1625817c9a8a86fa34b9e02dfeebf047fed838