[INFO] fetching crate scratchbuffer 0.1.0-alpha.1...
[INFO] checking scratchbuffer-0.1.0-alpha.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate scratchbuffer 0.1.0-alpha.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate scratchbuffer 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate scratchbuffer 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate scratchbuffer 0.1.0-alpha.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scratchbuffer 0.1.0-alpha.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1f5590318fb2ed2008d8c040f9a211fad964cf579446f852fa44c7395ca1dee
[INFO] running `Command { std: "docker" "start" "-a" "f1f5590318fb2ed2008d8c040f9a211fad964cf579446f852fa44c7395ca1dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1f5590318fb2ed2008d8c040f9a211fad964cf579446f852fa44c7395ca1dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f5590318fb2ed2008d8c040f9a211fad964cf579446f852fa44c7395ca1dee", kill_on_drop: false }`
[INFO] [stdout] f1f5590318fb2ed2008d8c040f9a211fad964cf579446f852fa44c7395ca1dee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e096ec7604bdf606da2067308657b70b9ccf1d4c81c218e293077fa91a858ee
[INFO] running `Command { std: "docker" "start" "-a" "3e096ec7604bdf606da2067308657b70b9ccf1d4c81c218e293077fa91a858ee", kill_on_drop: false }`
[INFO] [stderr]     Checking scratchbuffer v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 64 -         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout] 64 +         assert!(align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:64:41
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 64 -         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout] 64 +         assert!(mem::align_of::<T>() <= align_of::<usize>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |         assert_ne!(0, mem::size_of::<T>());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 65 -         assert_ne!(0, mem::size_of::<T>());
[INFO] [stdout] 65 +         assert_ne!(0, size_of::<T>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     const ALIGN: usize = mem::align_of::<usize>();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 72 -     const ALIGN: usize = mem::align_of::<usize>();
[INFO] [stdout] 72 +     const ALIGN: usize = align_of::<usize>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |     const ITEM_LEN: usize = mem::size_of::<T>();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 73 -     const ITEM_LEN: usize = mem::size_of::<T>();
[INFO] [stdout] 73 +     const ITEM_LEN: usize = size_of::<T>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:215:65
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let layout = Layout::from_size_align(self.capacity, mem::align_of::<usize>()).unwrap();
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 215 -             let layout = Layout::from_size_align(self.capacity, mem::align_of::<usize>()).unwrap();
[INFO] [stdout] 215 +             let layout = Layout::from_size_align(self.capacity, align_of::<usize>()).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 64 -         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout] 64 +         assert!(align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:64:41
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 64 -         assert!(mem::align_of::<T>() <= mem::align_of::<usize>());
[INFO] [stdout] 64 +         assert!(mem::align_of::<T>() <= align_of::<usize>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |         assert_ne!(0, mem::size_of::<T>());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 65 -         assert_ne!(0, mem::size_of::<T>());
[INFO] [stdout] 65 +         assert_ne!(0, size_of::<T>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |     const ALIGN: usize = mem::align_of::<usize>();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 72 -     const ALIGN: usize = mem::align_of::<usize>();
[INFO] [stdout] 72 +     const ALIGN: usize = align_of::<usize>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/lib.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |     const ITEM_LEN: usize = mem::size_of::<T>();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 73 -     const ITEM_LEN: usize = mem::size_of::<T>();
[INFO] [stdout] 73 +     const ITEM_LEN: usize = size_of::<T>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:215:65
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let layout = Layout::from_size_align(self.capacity, mem::align_of::<usize>()).unwrap();
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 215 -             let layout = Layout::from_size_align(self.capacity, mem::align_of::<usize>()).unwrap();
[INFO] [stdout] 215 +             let layout = Layout::from_size_align(self.capacity, align_of::<usize>()).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "3e096ec7604bdf606da2067308657b70b9ccf1d4c81c218e293077fa91a858ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e096ec7604bdf606da2067308657b70b9ccf1d4c81c218e293077fa91a858ee", kill_on_drop: false }`
[INFO] [stdout] 3e096ec7604bdf606da2067308657b70b9ccf1d4c81c218e293077fa91a858ee