[INFO] fetching crate metatype 0.2.1...
[INFO] building metatype-0.2.1 against master#222c5724ecc922fe67815f428c19f82c129d9386 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 222c5724ecc922fe67815f428c19f82c129d9386
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "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" "+222c5724ecc922fe67815f428c19f82c129d9386" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "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" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a57ecd08f4a6c55374adeee47f98d2b06b6c1e15a1b247dfe09a69b40a896d4
[INFO] running `Command { std: "docker" "start" "-a" "1a57ecd08f4a6c55374adeee47f98d2b06b6c1e15a1b247dfe09a69b40a896d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a57ecd08f4a6c55374adeee47f98d2b06b6c1e15a1b247dfe09a69b40a896d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a57ecd08f4a6c55374adeee47f98d2b06b6c1e15a1b247dfe09a69b40a896d4", kill_on_drop: false }`
[INFO] [stdout] 1a57ecd08f4a6c55374adeee47f98d2b06b6c1e15a1b247dfe09a69b40a896d4
[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" "+222c5724ecc922fe67815f428c19f82c129d9386" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a79644142b44de74fcfcfbd6f3788c5921f0712e49df72469d86bd301078378
[INFO] running `Command { std: "docker" "start" "-a" "8a79644142b44de74fcfcfbd6f3788c5921f0712e49df72469d86bd301078378", 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 0.32s
[INFO] running `Command { std: "docker" "inspect" "8a79644142b44de74fcfcfbd6f3788c5921f0712e49df72469d86bd301078378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a79644142b44de74fcfcfbd6f3788c5921f0712e49df72469d86bd301078378", kill_on_drop: false }`
[INFO] [stdout] 8a79644142b44de74fcfcfbd6f3788c5921f0712e49df72469d86bd301078378
[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" "+222c5724ecc922fe67815f428c19f82c129d9386" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 323866d2fe580484d4ddd9f5115b0a07b05383078e49ee92401ab834e9469ddf
[INFO] running `Command { std: "docker" "start" "-a" "323866d2fe580484d4ddd9f5115b0a07b05383078e49ee92401ab834e9469ddf", 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] [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 0.45s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/metatype-5907acd2be27ed35)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "323866d2fe580484d4ddd9f5115b0a07b05383078e49ee92401ab834e9469ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323866d2fe580484d4ddd9f5115b0a07b05383078e49ee92401ab834e9469ddf", kill_on_drop: false }`
[INFO] [stdout] 323866d2fe580484d4ddd9f5115b0a07b05383078e49ee92401ab834e9469ddf