[INFO] cloning repository https://github.com/BusterDaemon/r_wallpaper_changer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BusterDaemon/r_wallpaper_changer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBusterDaemon%2Fr_wallpaper_changer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBusterDaemon%2Fr_wallpaper_changer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2474ad92bb78ef84b023b004ae2cfc68063848a1
[INFO] checking BusterDaemon/r_wallpaper_changer against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBusterDaemon%2Fr_wallpaper_changer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BusterDaemon/r_wallpaper_changer
[INFO] finished tweaking git repo https://github.com/BusterDaemon/r_wallpaper_changer
[INFO] tweaked toml for git repo https://github.com/BusterDaemon/r_wallpaper_changer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BusterDaemon/r_wallpaper_changer on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BusterDaemon/r_wallpaper_changer 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "aa0d2044e74a028795431c13211fa05164ed13ffd8daa87a5b59803ae9fdcc04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa0d2044e74a028795431c13211fa05164ed13ffd8daa87a5b59803ae9fdcc04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0d2044e74a028795431c13211fa05164ed13ffd8daa87a5b59803ae9fdcc04", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "e97dafba56f87772d953c092b707da189a4ce5f035e865316d381c6a27e309d8", kill_on_drop: false }`
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[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     mem::drop(file_p);
[INFO] [stdout]    |     ^^^^^^^^^^------^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 52 -     mem::drop(file_p);
[INFO] [stdout] 52 +     let _ = file_p;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     mem::drop(tm_er);
[INFO] [stdout]     |     ^^^^^^^^^^-----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `Result<&TempDir, &std::io::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 131 -     mem::drop(tm_er);
[INFO] [stdout] 131 +     let _ = tm_er;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     mem::drop(img_t);
[INFO] [stdout]     |     ^^^^^^^^^^-----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `&str`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 178 -     mem::drop(img_t);
[INFO] [stdout] 178 +     let _ = img_t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |     mem::drop(wall_r);
[INFO] [stdout]     |     ^^^^^^^^^^------^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `()`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 283 -     mem::drop(wall_r);
[INFO] [stdout] 283 +     let _ = wall_r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:284:5
[INFO] [stdout]     |
[INFO] [stdout] 284 |     mem::drop(img);
[INFO] [stdout]     |     ^^^^^^^^^^---^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `&Path`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 284 -     mem::drop(img);
[INFO] [stdout] 284 +     let _ = img;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/metadata.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         drop(tmp1);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `f32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 35 -         drop(tmp1);
[INFO] [stdout] 35 +         let _ = tmp1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/metadata.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         drop(tmp2);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `f32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 36 -         drop(tmp2);
[INFO] [stdout] 36 +         let _ = tmp2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     mem::drop(file_p);
[INFO] [stdout]    |     ^^^^^^^^^^------^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 52 -     mem::drop(file_p);
[INFO] [stdout] 52 +     let _ = file_p;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     mem::drop(tm_er);
[INFO] [stdout]     |     ^^^^^^^^^^-----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `Result<&TempDir, &std::io::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 131 -     mem::drop(tm_er);
[INFO] [stdout] 131 +     let _ = tm_er;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     mem::drop(img_t);
[INFO] [stdout]     |     ^^^^^^^^^^-----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `&str`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 178 -     mem::drop(img_t);
[INFO] [stdout] 178 +     let _ = img_t;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |     mem::drop(wall_r);
[INFO] [stdout]     |     ^^^^^^^^^^------^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `()`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 283 -     mem::drop(wall_r);
[INFO] [stdout] 283 +     let _ = wall_r;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:284:5
[INFO] [stdout]     |
[INFO] [stdout] 284 |     mem::drop(img);
[INFO] [stdout]     |     ^^^^^^^^^^---^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               argument has type `&Path`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 284 -     mem::drop(img);
[INFO] [stdout] 284 +     let _ = img;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/metadata.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         drop(tmp1);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `f32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 35 -         drop(tmp1);
[INFO] [stdout] 35 +         let _ = tmp1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/metadata.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         drop(tmp2);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `f32`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 36 -         drop(tmp2);
[INFO] [stdout] 36 +         let _ = tmp2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.88s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.49
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e97dafba56f87772d953c092b707da189a4ce5f035e865316d381c6a27e309d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97dafba56f87772d953c092b707da189a4ce5f035e865316d381c6a27e309d8", kill_on_drop: false }`
[INFO] [stdout] e97dafba56f87772d953c092b707da189a4ce5f035e865316d381c6a27e309d8
