[INFO] fetching crate vga 0.2.7...
[INFO] checking vga-0.2.7 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate vga 0.2.7 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate vga 0.2.7 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-30/source/rust-toolchain
[INFO] started tweaking crates.io crate vga 0.2.7
[INFO] finished tweaking crates.io crate vga 0.2.7
[INFO] tweaked toml for crates.io crate vga 0.2.7 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b01cbe9574be0ade138622fae60898f6204415301e32bdf592130cc1cba6bdf
[INFO] running `Command { std: "docker" "start" "-a" "0b01cbe9574be0ade138622fae60898f6204415301e32bdf592130cc1cba6bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b01cbe9574be0ade138622fae60898f6204415301e32bdf592130cc1cba6bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b01cbe9574be0ade138622fae60898f6204415301e32bdf592130cc1cba6bdf", kill_on_drop: false }`
[INFO] [stdout] 0b01cbe9574be0ade138622fae60898f6204415301e32bdf592130cc1cba6bdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a235e0c6ce4359e129e87a2f47bb3f69cdfa6178de64fe9a3cd4229953ecd7cb
[INFO] running `Command { std: "docker" "start" "-a" "a235e0c6ce4359e129e87a2f47bb3f69cdfa6178de64fe9a3cd4229953ecd7cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling x86_64 v0.14.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking volatile v0.4.4
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking conquer-util v0.3.0
[INFO] [stderr]     Checking font8x8 v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking conquer-once v0.3.2
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking spinning_top v0.2.4
[INFO] [stderr]     Checking vga v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `st00_read`
[INFO] [stdout]   --> src/registers/general.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     st00_read: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st01_read_cga`
[INFO] [stdout]   --> src/registers/general.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     st01_read_cga: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st01_read_mda`
[INFO] [stdout]   --> src/registers/general.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     st01_read_mda: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_read`
[INFO] [stdout]   --> src/registers/general.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fcr_read: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_write_cga`
[INFO] [stdout]   --> src/registers/general.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fcr_write_cga: PortWriteOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_write_mda`
[INFO] [stdout]   --> src/registers/general.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fcr_write_mda: PortWriteOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st00_read`
[INFO] [stdout]   --> src/registers/general.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     st00_read: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st01_read_cga`
[INFO] [stdout]   --> src/registers/general.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     st01_read_cga: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st01_read_mda`
[INFO] [stdout]   --> src/registers/general.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     st01_read_mda: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_read`
[INFO] [stdout]   --> src/registers/general.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fcr_read: PortReadOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_write_cga`
[INFO] [stdout]   --> src/registers/general.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fcr_write_cga: PortWriteOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fcr_write_mda`
[INFO] [stdout]   --> src/registers/general.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fcr_write_mda: PortWriteOnly<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.99s
[INFO] running `Command { std: "docker" "inspect" "a235e0c6ce4359e129e87a2f47bb3f69cdfa6178de64fe9a3cd4229953ecd7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a235e0c6ce4359e129e87a2f47bb3f69cdfa6178de64fe9a3cd4229953ecd7cb", kill_on_drop: false }`
[INFO] [stdout] a235e0c6ce4359e129e87a2f47bb3f69cdfa6178de64fe9a3cd4229953ecd7cb