[INFO] fetching crate metatype 0.2.1...
[INFO] building metatype-0.2.1 against try#615edd3ad1cf6871c977dc900317cb6c2070fd6b for pr-97334
[INFO] extracting crate metatype 0.2.1 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate metatype 0.2.1 on toolchain 615edd3ad1cf6871c977dc900317cb6c2070fd6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metatype 0.2.1
[INFO] finished tweaking crates.io crate metatype 0.2.1
[INFO] tweaked toml for crates.io crate metatype 0.2.1 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ddc2be5c939edd357884c04a386360bd441d7a3563eaf639a7e025fcdc85b12
[INFO] running `Command { std: "docker" "start" "-a" "6ddc2be5c939edd357884c04a386360bd441d7a3563eaf639a7e025fcdc85b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ddc2be5c939edd357884c04a386360bd441d7a3563eaf639a7e025fcdc85b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ddc2be5c939edd357884c04a386360bd441d7a3563eaf639a7e025fcdc85b12", kill_on_drop: false }`
[INFO] [stdout] 6ddc2be5c939edd357884c04a386360bd441d7a3563eaf639a7e025fcdc85b12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 095b0ee8313abab2fea01eb3e0796eee501fff841a2ae5c0ddb8691d840b8d79
[INFO] running `Command { std: "docker" "start" "-a" "095b0ee8313abab2fea01eb3e0796eee501fff841a2ae5c0ddb8691d840b8d79", kill_on_drop: false }`
[INFO] [stderr]    Compiling metatype v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:109:2
[INFO] [stdout]     |
[INFO] [stdout] 109 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:111:2
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "095b0ee8313abab2fea01eb3e0796eee501fff841a2ae5c0ddb8691d840b8d79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095b0ee8313abab2fea01eb3e0796eee501fff841a2ae5c0ddb8691d840b8d79", kill_on_drop: false }`
[INFO] [stdout] 095b0ee8313abab2fea01eb3e0796eee501fff841a2ae5c0ddb8691d840b8d79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec5bbafa08e27f5cc1c1b33fb1d89b982e5db4f3316a6ed8970da2d372b4d466
[INFO] running `Command { std: "docker" "start" "-a" "ec5bbafa08e27f5cc1c1b33fb1d89b982e5db4f3316a6ed8970da2d372b4d466", kill_on_drop: false }`
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:109:2
[INFO] [stdout]     |
[INFO] [stdout] 109 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metatype v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:111:2
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:109:2
[INFO] [stdout]     |
[INFO] [stdout] 109 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:111:2
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/metatype-5907acd2be27ed35)
[INFO] running `Command { std: "docker" "inspect" "ec5bbafa08e27f5cc1c1b33fb1d89b982e5db4f3316a6ed8970da2d372b4d466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5bbafa08e27f5cc1c1b33fb1d89b982e5db4f3316a6ed8970da2d372b4d466", kill_on_drop: false }`
[INFO] [stdout] ec5bbafa08e27f5cc1c1b33fb1d89b982e5db4f3316a6ed8970da2d372b4d466