[INFO] fetching crate binartree 2.0.2...
[INFO] checking binartree-2.0.2 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate binartree 2.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate binartree 2.0.2 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binartree 2.0.2
[INFO] finished tweaking crates.io crate binartree 2.0.2
[INFO] tweaked toml for crates.io crate binartree 2.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19f70eb7b1e80d4d2a197c52b485da76fcb1fb95983343a69879104017ba889c
[INFO] running `Command { std: "docker" "start" "-a" "19f70eb7b1e80d4d2a197c52b485da76fcb1fb95983343a69879104017ba889c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f70eb7b1e80d4d2a197c52b485da76fcb1fb95983343a69879104017ba889c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f70eb7b1e80d4d2a197c52b485da76fcb1fb95983343a69879104017ba889c", kill_on_drop: false }`
[INFO] [stdout] 19f70eb7b1e80d4d2a197c52b485da76fcb1fb95983343a69879104017ba889c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54e5d2b4ab1b84c094c5cc951be45709cf5b19b7045aca220c4a96b32d7f4720
[INFO] running `Command { std: "docker" "start" "-a" "54e5d2b4ab1b84c094c5cc951be45709cf5b19b7045aca220c4a96b32d7f4720", kill_on_drop: false }`
[INFO] [stderr]     Checking binartree v2.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/node.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 mem::drop(branch.key);
[INFO] [stdout]     |                 ^^^^^^^^^^----------^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `T`
[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] 206 -                 mem::drop(branch.key);
[INFO] [stdout] 206 +                 let _ = branch.key;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/node.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 mem::drop(branch.key);
[INFO] [stdout]     |                 ^^^^^^^^^^----------^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `T`
[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] 206 -                 mem::drop(branch.key);
[INFO] [stdout] 206 +                 let _ = branch.key;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "54e5d2b4ab1b84c094c5cc951be45709cf5b19b7045aca220c4a96b32d7f4720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e5d2b4ab1b84c094c5cc951be45709cf5b19b7045aca220c4a96b32d7f4720", kill_on_drop: false }`
[INFO] [stdout] 54e5d2b4ab1b84c094c5cc951be45709cf5b19b7045aca220c4a96b32d7f4720
[INFO] checking binartree-2.0.2 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate binartree 2.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate binartree 2.0.2 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binartree 2.0.2
[INFO] finished tweaking crates.io crate binartree 2.0.2
[INFO] tweaked toml for crates.io crate binartree 2.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ce3c3740b7a709f78968fa56b968a5155686d85798bb5332eed5f40f3d01924
[INFO] running `Command { std: "docker" "start" "-a" "9ce3c3740b7a709f78968fa56b968a5155686d85798bb5332eed5f40f3d01924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ce3c3740b7a709f78968fa56b968a5155686d85798bb5332eed5f40f3d01924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce3c3740b7a709f78968fa56b968a5155686d85798bb5332eed5f40f3d01924", kill_on_drop: false }`
[INFO] [stdout] 9ce3c3740b7a709f78968fa56b968a5155686d85798bb5332eed5f40f3d01924
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df519db12eb659e4ddcd777aef7b67b49a2a3a743a418a5e758ba6b768119aad
[INFO] running `Command { std: "docker" "start" "-a" "df519db12eb659e4ddcd777aef7b67b49a2a3a743a418a5e758ba6b768119aad", kill_on_drop: false }`
[INFO] [stderr]     Checking binartree v2.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/node.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 mem::drop(branch.key);
[INFO] [stdout]     |                 ^^^^^^^^^^----------^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `T`
[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] 206 -                 mem::drop(branch.key);
[INFO] [stdout] 206 +                 let _ = branch.key;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/node.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 mem::drop(branch.key);
[INFO] [stdout]     |                 ^^^^^^^^^^----------^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           argument has type `T`
[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] 206 -                 mem::drop(branch.key);
[INFO] [stdout] 206 +                 let _ = branch.key;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "df519db12eb659e4ddcd777aef7b67b49a2a3a743a418a5e758ba6b768119aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df519db12eb659e4ddcd777aef7b67b49a2a3a743a418a5e758ba6b768119aad", kill_on_drop: false }`
[INFO] [stdout] df519db12eb659e4ddcd777aef7b67b49a2a3a743a418a5e758ba6b768119aad