[INFO] fetching crate craft-eraser 0.3.2...
[INFO] checking craft-eraser-0.3.2 against master#36b61e5aa593cc60cc92fc548b0d351e414aee2a for pr-116930
[INFO] extracting crate craft-eraser 0.3.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate craft-eraser 0.3.2 on toolchain 36b61e5aa593cc60cc92fc548b0d351e414aee2a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate craft-eraser 0.3.2
[INFO] finished tweaking crates.io crate craft-eraser 0.3.2
[INFO] tweaked toml for crates.io crate craft-eraser 0.3.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "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" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6dd5412dbff5eadd781a17446d471ed97ecd59325c8365eacb3a4edcbaea0a1
[INFO] running `Command { std: "docker" "start" "-a" "e6dd5412dbff5eadd781a17446d471ed97ecd59325c8365eacb3a4edcbaea0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6dd5412dbff5eadd781a17446d471ed97ecd59325c8365eacb3a4edcbaea0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6dd5412dbff5eadd781a17446d471ed97ecd59325c8365eacb3a4edcbaea0a1", kill_on_drop: false }`
[INFO] [stdout] e6dd5412dbff5eadd781a17446d471ed97ecd59325c8365eacb3a4edcbaea0a1
[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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28ddf75f3f94f1ae5a536e4b33293c41e91d75534e0436ddfdbd4069807828f7
[INFO] running `Command { std: "docker" "start" "-a" "28ddf75f3f94f1ae5a536e4b33293c41e91d75534e0436ddfdbd4069807828f7", kill_on_drop: false }`
[INFO] [stderr]     Checking craft-eraser v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/ebox.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     unsafe { Box::from_raw(meta_ptr) };
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     unsafe { let _ = Box::from_raw(meta_ptr); };
[INFO] [stdout]    |              +++++++                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]  --> src/eptr.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     unsafe { Box::from_raw(meta.cast::<T::Metadata>().as_ptr()) };
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |     unsafe { let _ = Box::from_raw(meta.cast::<T::Metadata>().as_ptr()); };
[INFO] [stdout]   |              +++++++                                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/thin_ebox.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     Box::from_raw(ptr.as_ptr());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let _ = Box::from_raw(ptr.as_ptr());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/ebox.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     unsafe { Box::from_raw(meta_ptr) };
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     unsafe { let _ = Box::from_raw(meta_ptr); };
[INFO] [stdout]    |              +++++++                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]  --> src/eptr.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     unsafe { Box::from_raw(meta.cast::<T::Metadata>().as_ptr()) };
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |     unsafe { let _ = Box::from_raw(meta.cast::<T::Metadata>().as_ptr()); };
[INFO] [stdout]   |              +++++++                                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `alloc::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/thin_ebox.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     Box::from_raw(ptr.as_ptr());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let _ = Box::from_raw(ptr.as_ptr());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "28ddf75f3f94f1ae5a536e4b33293c41e91d75534e0436ddfdbd4069807828f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ddf75f3f94f1ae5a536e4b33293c41e91d75534e0436ddfdbd4069807828f7", kill_on_drop: false }`
[INFO] [stdout] 28ddf75f3f94f1ae5a536e4b33293c41e91d75534e0436ddfdbd4069807828f7