[INFO] fetching crate vga 0.2.7...
[INFO] testing vga-0.2.7 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate vga 0.2.7 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate vga 0.2.7 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-5/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-5/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] a94645ac1098a6df187854c974d3728c281ed3b5e14e9253d1f5aa9f9b641ed5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a94645ac1098a6df187854c974d3728c281ed3b5e14e9253d1f5aa9f9b641ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a94645ac1098a6df187854c974d3728c281ed3b5e14e9253d1f5aa9f9b641ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94645ac1098a6df187854c974d3728c281ed3b5e14e9253d1f5aa9f9b641ed5", kill_on_drop: false }`
[INFO] [stdout] a94645ac1098a6df187854c974d3728c281ed3b5e14e9253d1f5aa9f9b641ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 41e02696cf6dcbdc60aa6f5f840c886c3cc780268e9a02e4937a58850ea2020a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "41e02696cf6dcbdc60aa6f5f840c886c3cc780268e9a02e4937a58850ea2020a", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86_64 v0.14.6
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling conquer-util v0.3.0
[INFO] [stderr]    Compiling volatile v0.4.4
[INFO] [stderr]    Compiling font8x8 v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling conquer-once v0.3.2
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41e02696cf6dcbdc60aa6f5f840c886c3cc780268e9a02e4937a58850ea2020a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e02696cf6dcbdc60aa6f5f840c886c3cc780268e9a02e4937a58850ea2020a", kill_on_drop: false }`
[INFO] [stdout] 41e02696cf6dcbdc60aa6f5f840c886c3cc780268e9a02e4937a58850ea2020a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6932805f0d24c08c32c2b83ccdcd7d482369b55eb554b0382a321114990a9ee8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6932805f0d24c08c32c2b83ccdcd7d482369b55eb554b0382a321114990a9ee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "6932805f0d24c08c32c2b83ccdcd7d482369b55eb554b0382a321114990a9ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6932805f0d24c08c32c2b83ccdcd7d482369b55eb554b0382a321114990a9ee8", kill_on_drop: false }`
[INFO] [stdout] 6932805f0d24c08c32c2b83ccdcd7d482369b55eb554b0382a321114990a9ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 954f08a3290a3f61092e9ebd8d14c0b18b075e932ea66182e52f804584df30bb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "954f08a3290a3f61092e9ebd8d14c0b18b075e932ea66182e52f804584df30bb", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `st00_read`
[INFO] [stderr]   --> src/registers/general.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     st00_read: PortReadOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st01_read_cga`
[INFO] [stderr]   --> src/registers/general.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     st01_read_cga: PortReadOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st01_read_mda`
[INFO] [stderr]   --> src/registers/general.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     st01_read_mda: PortReadOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fcr_read`
[INFO] [stderr]   --> src/registers/general.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fcr_read: PortReadOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fcr_write_cga`
[INFO] [stderr]   --> src/registers/general.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fcr_write_cga: PortWriteOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fcr_write_mda`
[INFO] [stderr]   --> src/registers/general.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fcr_write_mda: PortWriteOnly<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `vga` (lib) generated 6 warnings
[INFO] [stderr] warning: `vga` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vga-050c9054def4015f)
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests vga
[INFO] [stdout] test colors::test::test_set_background ... ok
[INFO] [stdout] test colors::test::test_set_foreground ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/writers/text_40x50.rs - writers::text_40x50::Text40x50 (line 18) - compile ... ok
[INFO] [stdout] test src/writers/graphics_640x480x16.rs - writers::graphics_640x480x16::Graphics640x480x16 (line 21) - compile ... ok
[INFO] [stdout] test src/writers/graphics_320x200x256.rs - writers::graphics_320x200x256::Graphics320x200x256 (line 19) - compile ... ok
[INFO] [stdout] test src/writers/graphics_320x240x256.rs - writers::graphics_320x240x256::Graphics320x240x256 (line 20) - compile ... ok
[INFO] [stdout] test src/writers/text_40x25.rs - writers::text_40x25::Text40x25 (line 18) - compile ... ok
[INFO] [stdout] test src/writers/text_80x25.rs - writers::text_80x25::Text80x25 (line 18) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "954f08a3290a3f61092e9ebd8d14c0b18b075e932ea66182e52f804584df30bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954f08a3290a3f61092e9ebd8d14c0b18b075e932ea66182e52f804584df30bb", kill_on_drop: false }`
[INFO] [stdout] 954f08a3290a3f61092e9ebd8d14c0b18b075e932ea66182e52f804584df30bb