[INFO] fetching crate astral-string 0.0.5...
[INFO] checking astral-string-0.0.5 against beta for pr-78714
[INFO] extracting crate astral-string 0.0.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate astral-string 0.0.5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate astral-string 0.0.5
[INFO] finished tweaking crates.io crate astral-string 0.0.5
[INFO] tweaked toml for crates.io crate astral-string 0.0.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 034abe068da1f3b68569ce5af33e578feb24fb014e6a301d0d7fb0a69894c256
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "034abe068da1f3b68569ce5af33e578feb24fb014e6a301d0d7fb0a69894c256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "034abe068da1f3b68569ce5af33e578feb24fb014e6a301d0d7fb0a69894c256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034abe068da1f3b68569ce5af33e578feb24fb014e6a301d0d7fb0a69894c256", kill_on_drop: false }`
[INFO] [stdout] 034abe068da1f3b68569ce5af33e578feb24fb014e6a301d0d7fb0a69894c256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff320ed2c374c82b0b7e6a86cad613bf5f7f15d67b4ac99c25b4b630e31318f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff320ed2c374c82b0b7e6a86cad613bf5f7f15d67b4ac99c25b4b630e31318f3", kill_on_drop: false }`
[INFO] [stderr]     Checking astral-string v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute must be of the form `#[doc(hidden|inline|...)]` or `#[doc = "string"]`
[INFO] [stdout]    --> src/lib.rs:160:1
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[doc]
[INFO] [stdout]     | ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:128:2
[INFO] [stdout]     |
[INFO] [stdout] 128 |     future_incompatible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(ill_formed_attribute_input)]` implied by `#[warn(future_incompatible)]`
[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: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize`, `Ordering`, `self`
[INFO] [stdout]    --> src/subsystem.rs:21:12
[INFO] [stdout]     |
[INFO] [stdout] 21  |         atomic::{self, AtomicUsize, Ordering},
[INFO] [stdout]     |                  ^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:132:2
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute must be of the form `#[doc(hidden|inline|...)]` or `#[doc = "string"]`
[INFO] [stdout]    --> src/lib.rs:160:1
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[doc]
[INFO] [stdout]     | ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:128:2
[INFO] [stdout]     |
[INFO] [stdout] 128 |     future_incompatible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(ill_formed_attribute_input)]` implied by `#[warn(future_incompatible)]`
[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: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize`, `Ordering`, `self`
[INFO] [stdout]    --> src/subsystem.rs:21:12
[INFO] [stdout]     |
[INFO] [stdout] 21  |         atomic::{self, AtomicUsize, Ordering},
[INFO] [stdout]     |                  ^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:132:2
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ff320ed2c374c82b0b7e6a86cad613bf5f7f15d67b4ac99c25b4b630e31318f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff320ed2c374c82b0b7e6a86cad613bf5f7f15d67b4ac99c25b4b630e31318f3", kill_on_drop: false }`
[INFO] [stdout] ff320ed2c374c82b0b7e6a86cad613bf5f7f15d67b4ac99c25b4b630e31318f3