[INFO] fetching crate cap-std 0.21.1...
[INFO] checking cap-std-0.21.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cap-std 0.21.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate cap-std 0.21.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cap-std 0.21.1
[INFO] finished tweaking crates.io crate cap-std 0.21.1
[INFO] tweaked toml for crates.io crate cap-std 0.21.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1948b3f4b164a9cdbeb7ae12fc03250b078257d40051187e885bdf75b606a3b
[INFO] running `Command { std: "docker" "start" "-a" "b1948b3f4b164a9cdbeb7ae12fc03250b078257d40051187e885bdf75b606a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1948b3f4b164a9cdbeb7ae12fc03250b078257d40051187e885bdf75b606a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1948b3f4b164a9cdbeb7ae12fc03250b078257d40051187e885bdf75b606a3b", kill_on_drop: false }`
[INFO] [stdout] b1948b3f4b164a9cdbeb7ae12fc03250b078257d40051187e885bdf75b606a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63e2f97c6aebd5aa6f6acb74081baf512b4b62de9a799286e1ef70b14711ccf6
[INFO] running `Command { std: "docker" "start" "-a" "63e2f97c6aebd5aa6f6acb74081baf512b4b62de9a799286e1ef70b14711ccf6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking linux-raw-sys v0.0.36
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]     Checking ambient-authority v0.0.1
[INFO] [stderr]    Compiling io-lifetimes v0.3.3
[INFO] [stderr]    Compiling rustix v0.26.2
[INFO] [stderr]    Compiling io-extras v0.11.2
[INFO] [stderr]    Compiling cap-primitives v0.21.1
[INFO] [stderr]    Compiling cap-std v0.21.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fs-set-times v0.13.1
[INFO] [stdout] warning: the feature `seek_convenience` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![cfg_attr(seek_convenience, feature(seek_convenience))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `seek_convenience` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![cfg_attr(seek_convenience, feature(seek_convenience))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `with_options` has been stable since 1.58.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 | #![cfg_attr(with_options, feature(with_options))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `with_options` has been stable since 1.58.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 | #![cfg_attr(with_options, feature(with_options))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
[INFO] running `Command { std: "docker" "inspect" "63e2f97c6aebd5aa6f6acb74081baf512b4b62de9a799286e1ef70b14711ccf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e2f97c6aebd5aa6f6acb74081baf512b4b62de9a799286e1ef70b14711ccf6", kill_on_drop: false }`
[INFO] [stdout] 63e2f97c6aebd5aa6f6acb74081baf512b4b62de9a799286e1ef70b14711ccf6