[INFO] fetching crate vga 0.2.9...
[INFO] checking vga-0.2.9 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate vga 0.2.9 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate vga 0.2.9
[INFO] finished tweaking crates.io crate vga 0.2.9
[INFO] tweaked toml for crates.io crate vga 0.2.9 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vga 0.2.9 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.11.1)
[INFO] [stderr]       Adding conquer-once v0.3.2 (available: v0.4.0)
[INFO] [stderr]       Adding spinning_top v0.2.5 (available: v0.3.0)
[INFO] [stderr]       Adding x86_64 v0.14.13 (available: v0.15.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 034e094d907870ce097bc3c3a9c2ce22521a25584518300d2ffdbfd95f694f18
[INFO] running `Command { std: "docker" "start" "-a" "034e094d907870ce097bc3c3a9c2ce22521a25584518300d2ffdbfd95f694f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "034e094d907870ce097bc3c3a9c2ce22521a25584518300d2ffdbfd95f694f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034e094d907870ce097bc3c3a9c2ce22521a25584518300d2ffdbfd95f694f18", kill_on_drop: false }`
[INFO] [stdout] 034e094d907870ce097bc3c3a9c2ce22521a25584518300d2ffdbfd95f694f18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8963b09c213f290dc3a75fe4cc5b83fe8c780504fd16fedf92e6eeb4b814617d
[INFO] running `Command { std: "docker" "start" "-a" "8963b09c213f290dc3a75fe4cc5b83fe8c780504fd16fedf92e6eeb4b814617d", kill_on_drop: false }`
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]     Checking conquer-util v0.3.0
[INFO] [stderr]     Checking font8x8 v0.3.1
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]     Checking conquer-once v0.3.2
[INFO] [stderr]     Checking x86_64 v0.14.13
[INFO] [stderr]     Checking vga v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `cast` is never used
[INFO] [stdout]   --> src/drawing/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) trait SignedNum: Signed + Ord + Copy + NumCast + NumAssignOps {
[INFO] [stdout]    |                  --------- associated function in this trait
[INFO] [stdout] 15 |     fn cast<T: NumCast>(value: T) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `cast` is never used
[INFO] [stdout]   --> src/drawing/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) trait SignedNum: Signed + Ord + Copy + NumCast + NumAssignOps {
[INFO] [stdout]    |                  --------- associated function in this trait
[INFO] [stdout] 15 |     fn cast<T: NumCast>(value: T) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/writers/mod.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn get_frame_buffer(&self) -> (SpinlockGuard<Vga>, *mut ScreenCharacter) {
[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] 77 |     fn get_frame_buffer(&self) -> (SpinlockGuard<'_, Vga>, *mut ScreenCharacter) {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/writers/mod.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn get_frame_buffer(&self) -> (SpinlockGuard<Vga>, *mut ScreenCharacter) {
[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] 77 |     fn get_frame_buffer(&self) -> (SpinlockGuard<'_, Vga>, *mut ScreenCharacter) {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "8963b09c213f290dc3a75fe4cc5b83fe8c780504fd16fedf92e6eeb4b814617d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8963b09c213f290dc3a75fe4cc5b83fe8c780504fd16fedf92e6eeb4b814617d", kill_on_drop: false }`
[INFO] [stdout] 8963b09c213f290dc3a75fe4cc5b83fe8c780504fd16fedf92e6eeb4b814617d
