[INFO] fetching crate secret_mem 0.1.0...
[INFO] testing secret_mem-0.1.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate secret_mem 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate secret_mem 0.1.0
[INFO] finished tweaking crates.io crate secret_mem 0.1.0
[INFO] tweaked toml for crates.io crate secret_mem 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate secret_mem 0.1.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding windows-sys v0.59.0 (available: v0.61.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4696020a8ca3cbdff8844a844abb37dfc9270ca851d6086c7fe64e7048843acc
[INFO] running `Command { std: "docker" "start" "-a" "4696020a8ca3cbdff8844a844abb37dfc9270ca851d6086c7fe64e7048843acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4696020a8ca3cbdff8844a844abb37dfc9270ca851d6086c7fe64e7048843acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4696020a8ca3cbdff8844a844abb37dfc9270ca851d6086c7fe64e7048843acc", kill_on_drop: false }`
[INFO] [stdout] 4696020a8ca3cbdff8844a844abb37dfc9270ca851d6086c7fe64e7048843acc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9158d8c1c90a665407e77ae606e2f29250e57506302de6cf9f9fa7e361688290
[INFO] running `Command { std: "docker" "start" "-a" "9158d8c1c90a665407e77ae606e2f29250e57506302de6cf9f9fa7e361688290", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling secret_mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SecretAllocator` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait SecretAllocator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnixSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/unix.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct UnixSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WindowsSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/windows.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct WindowsSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `page_size` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn page_size() -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "9158d8c1c90a665407e77ae606e2f29250e57506302de6cf9f9fa7e361688290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9158d8c1c90a665407e77ae606e2f29250e57506302de6cf9f9fa7e361688290", kill_on_drop: false }`
[INFO] [stdout] 9158d8c1c90a665407e77ae606e2f29250e57506302de6cf9f9fa7e361688290
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 777ab5bd3bbae85011c6d7187aaaced4b07bfc88425f0e8e5b85d6759bbb12a0
[INFO] running `Command { std: "docker" "start" "-a" "777ab5bd3bbae85011c6d7187aaaced4b07bfc88425f0e8e5b85d6759bbb12a0", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling secret_mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SecretAllocator` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait SecretAllocator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnixSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/unix.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct UnixSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WindowsSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/windows.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct WindowsSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `page_size` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn page_size() -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/unix.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/unix.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/alloc/windows.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/alloc/windows.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SecretAllocator` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait SecretAllocator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnixSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/unix.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct UnixSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WindowsSecretAllocator` is never constructed
[INFO] [stdout]   --> src/alloc/windows.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct WindowsSecretAllocator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `page_size` is never used
[INFO] [stdout]   --> src/alloc/mod.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn page_size() -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "777ab5bd3bbae85011c6d7187aaaced4b07bfc88425f0e8e5b85d6759bbb12a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "777ab5bd3bbae85011c6d7187aaaced4b07bfc88425f0e8e5b85d6759bbb12a0", kill_on_drop: false }`
[INFO] [stdout] 777ab5bd3bbae85011c6d7187aaaced4b07bfc88425f0e8e5b85d6759bbb12a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aaa114b6a751fac7c2eb244ca5645c6dda7af6e8b74bf639f7d9ea0d0e799dde
[INFO] running `Command { std: "docker" "start" "-a" "aaa114b6a751fac7c2eb244ca5645c6dda7af6e8b74bf639f7d9ea0d0e799dde", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/unix.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stderr]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/unix.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/unix.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/unix.rs:22:22
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/unix.rs:22:40
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/unix.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/unix.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/windows.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn alloc(layout: Layout) -> io::Result<NonNull<u8>> {
[INFO] [stderr]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/windows.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/windows.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn make_read_only(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/windows.rs:22:22
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/windows.rs:22:40
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn make_writable(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/alloc/windows.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/alloc/windows.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn dealloc(ptr: NonNull<u8>, layout: Layout) -> io::Result<()> {
[INFO] [stderr]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `SecretAllocator` is never used
[INFO] [stderr]   --> src/alloc/mod.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub trait SecretAllocator {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UnixSecretAllocator` is never constructed
[INFO] [stderr]   --> src/alloc/unix.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct UnixSecretAllocator;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WindowsSecretAllocator` is never constructed
[INFO] [stderr]   --> src/alloc/windows.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct WindowsSecretAllocator;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `page_size` is never used
[INFO] [stderr]   --> src/alloc/mod.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn page_size() -> usize {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `secret_mem` (lib) generated 18 warnings (run `cargo fix --lib -p secret_mem` to apply 14 suggestions)
[INFO] [stderr] warning: `secret_mem` (lib test) generated 18 warnings (18 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/secret_mem-a7a56bba1dd8b0fc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests secret_mem
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aaa114b6a751fac7c2eb244ca5645c6dda7af6e8b74bf639f7d9ea0d0e799dde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa114b6a751fac7c2eb244ca5645c6dda7af6e8b74bf639f7d9ea0d0e799dde", kill_on_drop: false }`
[INFO] [stdout] aaa114b6a751fac7c2eb244ca5645c6dda7af6e8b74bf639f7d9ea0d0e799dde
