[INFO] fetching crate devela 0.18.1...
[INFO] checking devela-0.18.1 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate devela 0.18.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate devela 0.18.1 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate devela 0.18.1
[INFO] finished tweaking crates.io crate devela 0.18.1
[INFO] tweaked toml for crates.io crate devela 0.18.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded devela_depend v0.1.2
[INFO] [stderr]   Downloaded devela_macros v0.7.1
[INFO] [stderr]   Downloaded atomic v0.6.0
[INFO] [stderr]   Downloaded const-str v0.5.7
[INFO] [stderr]   Downloaded portable-atomic v1.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0481129b556a225b08053934cae040d2f7be6d6df246530c258c4fcd0cbcd38
[INFO] running `Command { std: "docker" "start" "-a" "c0481129b556a225b08053934cae040d2f7be6d6df246530c258c4fcd0cbcd38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0481129b556a225b08053934cae040d2f7be6d6df246530c258c4fcd0cbcd38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0481129b556a225b08053934cae040d2f7be6d6df246530c258c4fcd0cbcd38", kill_on_drop: false }`
[INFO] [stdout] c0481129b556a225b08053934cae040d2f7be6d6df246530c258c4fcd0cbcd38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93ff9450f11210fd7cc92be795ec4110653a3c21f39c0819fd8cdebc71a508d2
[INFO] running `Command { std: "docker" "start" "-a" "93ff9450f11210fd7cc92be795ec4110653a3c21f39c0819fd8cdebc71a508d2", kill_on_drop: false }`
[INFO] [stderr]     Checking devela v0.18.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fns::*`
[INFO] [stdout]  --> src/mem/always/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use fns::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cswap`
[INFO] [stdout]   --> src/mem/always/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use cswap;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item`
[INFO] [stdout]    --> src/meta/_private.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $( $item ),*
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout] 12  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 13  | |     doc: "A wrapper to inhibit compiler from automatically calling `T`’s destructor.",
[INFO] [stdout] 14  | |     ManuallyDrop
[INFO] [stdout] 15  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item`
[INFO] [stdout]    --> src/meta/_private.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $( $item ),*
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 17  | |     doc: "A wrapper type to construct uninitialized instances of `T`.",
[INFO] [stdout] 18  | |     MaybeUninit
[INFO] [stdout] 19  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:20:1
[INFO] [stdout]     |
[INFO] [stdout] 20  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 21  | |     doc: "Opaque type representing the discriminant of an enum.",
[INFO] [stdout] 22  | |     @Discriminant as EnumDiscriminant
[INFO] [stdout] 23  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:24:1
[INFO] [stdout]     |
[INFO] [stdout] 24  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 25  | |     doc: "Returns a value uniquely identifying the enum variant in `v`.",
[INFO] [stdout] 26  | |     @discriminant as enum_discriminant
[INFO] [stdout] 27  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:68:1
[INFO] [stdout]     |
[INFO] [stdout] 68  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 69  | |     doc: "Reinterprets the bits of a value of one type as another type.",
[INFO] [stdout] 70  | |     @transmute as mem_transmute
[INFO] [stdout] 71  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:72:1
[INFO] [stdout]     |
[INFO] [stdout] 72  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 73  | |     doc: "Reads `src` as having type `&Dst` without moving the contained value.",
[INFO] [stdout] 74  | |     @transmute_copy as mem_transmute_copy
[INFO] [stdout] 75  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:76:1
[INFO] [stdout]     |
[INFO] [stdout] 76  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 77  | |     doc: "Returns the value of type `T` represented by the all-zero byte-pattern.",
[INFO] [stdout] 78  | |     @zeroed as mem_zeroed
[INFO] [stdout] 79  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem_needs_drop` is imported redundantly
[INFO] [stdout]  --> src/mem/trait.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::{mem_needs_drop, mem_swap, *};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^            - the item `mem_needs_drop` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem_swap` is imported redundantly
[INFO] [stdout]  --> src/mem/trait.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::{mem_needs_drop, mem_swap, *};
[INFO] [stdout]   |                             ^^^^^^^^  - the item `mem_swap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `print::*`
[INFO] [stdout]   --> src/os/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use print::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::print::*`
[INFO] [stdout]   --> src/os/mod.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub use super::print::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::os::all::*`
[INFO] [stdout]    --> src/lib.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub use super::os::all::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `_dep::*`
[INFO] [stdout]   --> src/_dep.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub use _dep::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fns::*`
[INFO] [stdout]  --> src/mem/always/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use fns::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cswap`
[INFO] [stdout]   --> src/mem/always/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use cswap;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item`
[INFO] [stdout]    --> src/meta/_private.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $( $item ),*
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:12:1
[INFO] [stdout]     |
[INFO] [stdout] 12  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 13  | |     doc: "A wrapper to inhibit compiler from automatically calling `T`’s destructor.",
[INFO] [stdout] 14  | |     ManuallyDrop
[INFO] [stdout] 15  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item`
[INFO] [stdout]    --> src/meta/_private.rs:104:16
[INFO] [stdout]     |
[INFO] [stdout] 104 |               $( $item ),*
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 17  | |     doc: "A wrapper type to construct uninitialized instances of `T`.",
[INFO] [stdout] 18  | |     MaybeUninit
[INFO] [stdout] 19  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:20:1
[INFO] [stdout]     |
[INFO] [stdout] 20  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 21  | |     doc: "Opaque type representing the discriminant of an enum.",
[INFO] [stdout] 22  | |     @Discriminant as EnumDiscriminant
[INFO] [stdout] 23  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:24:1
[INFO] [stdout]     |
[INFO] [stdout] 24  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 25  | |     doc: "Returns a value uniquely identifying the enum variant in `v`.",
[INFO] [stdout] 26  | |     @discriminant as enum_discriminant
[INFO] [stdout] 27  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:68:1
[INFO] [stdout]     |
[INFO] [stdout] 68  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 69  | |     doc: "Reinterprets the bits of a value of one type as another type.",
[INFO] [stdout] 70  | |     @transmute as mem_transmute
[INFO] [stdout] 71  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:72:1
[INFO] [stdout]     |
[INFO] [stdout] 72  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 73  | |     doc: "Reads `src` as having type `&Dst` without moving the contained value.",
[INFO] [stdout] 74  | |     @transmute_copy as mem_transmute_copy
[INFO] [stdout] 75  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `$item_to_rename as $item_renamed`
[INFO] [stdout]    --> src/meta/_private.rs:105:16
[INFO] [stdout]     |
[INFO] [stdout] 105 |               $( $item_to_rename as $item_renamed ),*
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/mem/reexports_core.rs:76:1
[INFO] [stdout]     |
[INFO] [stdout] 76  | / reexport! { rust: core::mem, local_module: "mem",
[INFO] [stdout] 77  | |     doc: "Returns the value of type `T` represented by the all-zero byte-pattern.",
[INFO] [stdout] 78  | |     @zeroed as mem_zeroed
[INFO] [stdout] 79  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `reexport` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem_needs_drop` is imported redundantly
[INFO] [stdout]  --> src/mem/trait.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::{mem_needs_drop, mem_swap, *};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^            - the item `mem_needs_drop` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mem_swap` is imported redundantly
[INFO] [stdout]  --> src/mem/trait.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::{mem_needs_drop, mem_swap, *};
[INFO] [stdout]   |                             ^^^^^^^^  - the item `mem_swap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `print::*`
[INFO] [stdout]   --> src/os/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use print::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::print::*`
[INFO] [stdout]   --> src/os/mod.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub use super::print::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::os::all::*`
[INFO] [stdout]    --> src/lib.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub use super::os::all::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `_dep::*`
[INFO] [stdout]   --> src/_dep.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub use _dep::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemAligned` is never used
[INFO] [stdout]   --> src/mem/aligned.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait MemAligned: private::Sealed {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sealed` is never used
[INFO] [stdout]   --> src/mem/aligned.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub trait Sealed {}
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Size` is never used
[INFO] [stdout]   --> src/mem/size/size.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Size: Mem + Sized {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Storage` is never used
[INFO] [stdout]   --> src/mem/storage/mod.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait Storage {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mem` is never used
[INFO] [stdout]   --> src/mem/trait.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Mem {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Apply` is never used
[INFO] [stdout]   --> src/result/chain.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait Apply<Res> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Also` is never used
[INFO] [stdout]   --> src/result/chain.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub trait Also: Sized {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemAligned` is never used
[INFO] [stdout]   --> src/mem/aligned.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait MemAligned: private::Sealed {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sealed` is never used
[INFO] [stdout]   --> src/mem/aligned.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub trait Sealed {}
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Size` is never used
[INFO] [stdout]   --> src/mem/size/size.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Size: Mem + Sized {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Storage` is never used
[INFO] [stdout]   --> src/mem/storage/mod.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait Storage {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mem` is never used
[INFO] [stdout]   --> src/mem/trait.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Mem {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Apply` is never used
[INFO] [stdout]   --> src/result/chain.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait Apply<Res> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Also` is never used
[INFO] [stdout]   --> src/result/chain.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub trait Also: Sized {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "93ff9450f11210fd7cc92be795ec4110653a3c21f39c0819fd8cdebc71a508d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ff9450f11210fd7cc92be795ec4110653a3c21f39c0819fd8cdebc71a508d2", kill_on_drop: false }`
[INFO] [stdout] 93ff9450f11210fd7cc92be795ec4110653a3c21f39c0819fd8cdebc71a508d2