[INFO] fetching crate float_extras 0.1.6...
[INFO] checking float_extras-0.1.6 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate float_extras 0.1.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate float_extras 0.1.6 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate float_extras 0.1.6
[INFO] finished tweaking crates.io crate float_extras 0.1.6
[INFO] tweaked toml for crates.io crate float_extras 0.1.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 455c646ea7b7f24ea2bac4d42119ca0c54dab0e4e0286346d0fdeb0a33b6accc
[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" "455c646ea7b7f24ea2bac4d42119ca0c54dab0e4e0286346d0fdeb0a33b6accc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "455c646ea7b7f24ea2bac4d42119ca0c54dab0e4e0286346d0fdeb0a33b6accc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455c646ea7b7f24ea2bac4d42119ca0c54dab0e4e0286346d0fdeb0a33b6accc", kill_on_drop: false }`
[INFO] [stdout] 455c646ea7b7f24ea2bac4d42119ca0c54dab0e4e0286346d0fdeb0a33b6accc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ad9d2b38017ca5a2b0c6b4d495fc752ca3cf72f8753f55c9f3b21f7836e277d
[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" "2ad9d2b38017ca5a2b0c6b4d495fc752ca3cf72f8753f55c9f3b21f7836e277d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking float_extras v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a foreign function or static
[INFO] [stdout]   --> src/lib.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |       #[link_name = "m"]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8  | /     extern "C" {
[INFO] [stdout] 9  | |         pub fn frexp(n: c_double, value: &mut c_int) -> c_double;
[INFO] [stdout] 10 | |         pub fn ldexp(x: c_double, n: c_int) -> c_double;
[INFO] [stdout] 11 | |         pub fn modf(x: c_double, iptr: &mut c_double) -> c_double;
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |         pub fn fma(x: c_double, y: c_double, z: c_double) -> c_double;
[INFO] [stdout] 34 | |     }
[INFO] [stdout]    | |_____- not a foreign function or static
[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] help: try `#[link(name = "m")]` instead
[INFO] [stdout]   --> src/lib.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     #[link_name = "m"]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a foreign function or static
[INFO] [stdout]   --> src/lib.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |       #[link_name = "m"]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8  | /     extern "C" {
[INFO] [stdout] 9  | |         pub fn frexp(n: c_double, value: &mut c_int) -> c_double;
[INFO] [stdout] 10 | |         pub fn ldexp(x: c_double, n: c_int) -> c_double;
[INFO] [stdout] 11 | |         pub fn modf(x: c_double, iptr: &mut c_double) -> c_double;
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |         pub fn fma(x: c_double, y: c_double, z: c_double) -> c_double;
[INFO] [stdout] 34 | |     }
[INFO] [stdout]    | |_____- not a foreign function or static
[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] help: try `#[link(name = "m")]` instead
[INFO] [stdout]   --> src/lib.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     #[link_name = "m"]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "2ad9d2b38017ca5a2b0c6b4d495fc752ca3cf72f8753f55c9f3b21f7836e277d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ad9d2b38017ca5a2b0c6b4d495fc752ca3cf72f8753f55c9f3b21f7836e277d", kill_on_drop: false }`
[INFO] [stdout] 2ad9d2b38017ca5a2b0c6b4d495fc752ca3cf72f8753f55c9f3b21f7836e277d