[INFO] fetching crate efficient_enum 0.3.1...
[INFO] checking efficient_enum-0.3.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate efficient_enum 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate efficient_enum 0.3.1 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate efficient_enum 0.3.1
[INFO] finished tweaking crates.io crate efficient_enum 0.3.1
[INFO] tweaked toml for crates.io crate efficient_enum 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 397a4b272b230cef7e0c3fa91d8ed5886019cfff469a8c65762525643c60f764
[INFO] running `Command { std: "docker" "start" "-a" "397a4b272b230cef7e0c3fa91d8ed5886019cfff469a8c65762525643c60f764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "397a4b272b230cef7e0c3fa91d8ed5886019cfff469a8c65762525643c60f764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397a4b272b230cef7e0c3fa91d8ed5886019cfff469a8c65762525643c60f764", kill_on_drop: false }`
[INFO] [stdout] 397a4b272b230cef7e0c3fa91d8ed5886019cfff469a8c65762525643c60f764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97373a213d1b33729c9287c35a4b1f288647d6d6f28c7143bdfff60022e19f17
[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" "97373a213d1b33729c9287c35a4b1f288647d6d6f28c7143bdfff60022e19f17", kill_on_drop: false }`
[INFO] [stderr]     Checking efficient_enum v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/tag.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{size_of, uninitialized};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/tag.rs:205:23
[INFO] [stdout]     |
[INFO] [stdout] 205 |             Self::tag(uninitialized(), o)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | tag_msb!{u8 u16 u32 u64 usize}
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/tag.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/option.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::{replace,uninitialized};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let b = unsafe { uninitialized() };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:651:46
[INFO] [stdout]     |
[INFO] [stdout] 651 |         let b = self.ref_1().map_or(unsafe { uninitialized() }, Clone::clone);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:743:26
[INFO] [stdout]     |
[INFO] [stdout] 743 |         let b = unsafe { uninitialized() };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/tag.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{size_of, uninitialized};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/tag.rs:205:23
[INFO] [stdout]     |
[INFO] [stdout] 205 |             Self::tag(uninitialized(), o)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | tag_msb!{u8 u16 u32 u64 usize}
[INFO] [stdout]     | ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/option.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::{replace,uninitialized};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let b = unsafe { uninitialized() };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:651:46
[INFO] [stdout]     |
[INFO] [stdout] 651 |         let b = self.ref_1().map_or(unsafe { uninitialized() }, Clone::clone);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/option.rs:743:26
[INFO] [stdout]     |
[INFO] [stdout] 743 |         let b = unsafe { uninitialized() };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "97373a213d1b33729c9287c35a4b1f288647d6d6f28c7143bdfff60022e19f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97373a213d1b33729c9287c35a4b1f288647d6d6f28c7143bdfff60022e19f17", kill_on_drop: false }`
[INFO] [stdout] 97373a213d1b33729c9287c35a4b1f288647d6d6f28c7143bdfff60022e19f17