[INFO] fetching crate backspace 0.1.0...
[INFO] checking backspace-0.1.0 against master#8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd for pr-150557
[INFO] extracting crate backspace 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate backspace 0.1.0
[INFO] finished tweaking crates.io crate backspace 0.1.0
[INFO] tweaked toml for crates.io crate backspace 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backspace 0.1.0 on toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate backspace 0.1.0 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" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afafda708de5437eaa74dc954b8be8e2bed6089cdf2f4af451883fb1628f29dd
[INFO] running `Command { std: "docker" "start" "-a" "afafda708de5437eaa74dc954b8be8e2bed6089cdf2f4af451883fb1628f29dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afafda708de5437eaa74dc954b8be8e2bed6089cdf2f4af451883fb1628f29dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afafda708de5437eaa74dc954b8be8e2bed6089cdf2f4af451883fb1628f29dd", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a853d280c418ce70ac41ecdaaac828d3b3d347f1f68f15b971d9575e720c4e5
[INFO] running `Command { std: "docker" "start" "-a" "4a853d280c418ce70ac41ecdaaac828d3b3d347f1f68f15b971d9575e720c4e5", kill_on_drop: false }`
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[INFO] [stdout] warning: field `app_id` is never read
[INFO] [stdout]   --> src/engine/engine/mod.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Engine {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 31 |     /// The application identifier.
[INFO] [stdout] 32 |     pub(super) app_id: Box<str>,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Engine` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/engine/graphics/mod.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Init(InitGraphics),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Graphics` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Init(InitGraphics),
[INFO] [stdout] 35 +     Init(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `window` is never read
[INFO] [stdout]   --> src/engine/init_graphics/mod.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(super) struct InitGraphics {
[INFO] [stdout]    |                   ------------ field in this struct
[INFO] [stdout] 31 |     /// The main window.
[INFO] [stdout] 32 |     window: Window,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InitGraphics` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `app_id` is never read
[INFO] [stdout]   --> src/engine/engine/mod.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Engine {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 31 |     /// The application identifier.
[INFO] [stdout] 32 |     pub(super) app_id: Box<str>,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Engine` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/engine/graphics/mod.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Init(InitGraphics),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Graphics` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Init(InitGraphics),
[INFO] [stdout] 35 +     Init(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `window` is never read
[INFO] [stdout]   --> src/engine/init_graphics/mod.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(super) struct InitGraphics {
[INFO] [stdout]    |                   ------------ field in this struct
[INFO] [stdout] 31 |     /// The main window.
[INFO] [stdout] 32 |     window: Window,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InitGraphics` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 57s
[INFO] running `Command { std: "docker" "inspect" "4a853d280c418ce70ac41ecdaaac828d3b3d347f1f68f15b971d9575e720c4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a853d280c418ce70ac41ecdaaac828d3b3d347f1f68f15b971d9575e720c4e5", kill_on_drop: false }`
[INFO] [stdout] 4a853d280c418ce70ac41ecdaaac828d3b3d347f1f68f15b971d9575e720c4e5
