[INFO] fetching crate oasis-std 0.4.1...
[INFO] checking oasis-std-0.4.1 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate oasis-std 0.4.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate oasis-std 0.4.1 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oasis-std 0.4.1
[INFO] finished tweaking crates.io crate oasis-std 0.4.1
[INFO] tweaked toml for crates.io crate oasis-std 0.4.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasi v0.7.0
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[INFO] [stderr]   Downloaded oasis-client v0.1.1
[INFO] [stderr]   Downloaded oasis-test v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62b518d4c8003b74cdf14d17822d819a5ed910323132c1e10a695b1b47598385
[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" "62b518d4c8003b74cdf14d17822d819a5ed910323132c1e10a695b1b47598385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62b518d4c8003b74cdf14d17822d819a5ed910323132c1e10a695b1b47598385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b518d4c8003b74cdf14d17822d819a5ed910323132c1e10a695b1b47598385", kill_on_drop: false }`
[INFO] [stdout] 62b518d4c8003b74cdf14d17822d819a5ed910323132c1e10a695b1b47598385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4471825fdf299934319c780dd3a563f0cb8d647996ff30b9f89b271c15b29547
[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" "4471825fdf299934319c780dd3a563f0cb8d647996ff30b9f89b271c15b29547", kill_on_drop: false }`
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[INFO] [stderr]    Compiling derive_more v0.15.0
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[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling oasis-macros v0.3.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking oasis-borsh v0.2.12
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking oasis-types v0.4.0
[INFO] [stderr]     Checking blockchain-traits v0.4.1
[INFO] [stderr]     Checking memchain v0.4.1
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[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking oasis-client v0.1.1
[INFO] [stderr]     Checking oasis-std v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     specialization,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     specialization,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     bind_by_move_pattern_guards,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     non_exhaustive,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]  --> src/backend/ext.rs:8:62
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn oasis_code(addr: *const Address, buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]   = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]  --> src/backend/ext.rs:9:67
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn oasis_code_len(addr: *const Address, len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]   |                                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:11:47
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn oasis_fetch_input(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:12:46
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn oasis_input_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:14:51
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn oasis_ret(buf: *const u8, len: u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn oasis_err(buf: *const u8, len: u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:17:45
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn oasis_fetch_ret(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn oasis_ret_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:20:45
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn oasis_fetch_err(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:21:44
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn oasis_err_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn oasis_fetch_aad(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:24:44
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn oasis_aad_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn oasis_address(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:38:48
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn oasis_sender(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:39:47
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn oasis_payer(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:43:72
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn oasis_read(key: *const u8, key_len: u32, value: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:44:81
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn oasis_read_len(key: *const u8, key_len: u32, value_len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     ) -> ExtStatusCode;
[INFO] [stdout]    |          ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |     ) -> ExtStatusCode;
[INFO] [stdout]    |          ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     bind_by_move_pattern_guards,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     non_exhaustive,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]  --> src/backend/ext.rs:8:62
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn oasis_code(addr: *const Address, buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]   = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]  --> src/backend/ext.rs:9:67
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn oasis_code_len(addr: *const Address, len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]   |                                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:11:47
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn oasis_fetch_input(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:12:46
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn oasis_input_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:14:51
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn oasis_ret(buf: *const u8, len: u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn oasis_err(buf: *const u8, len: u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:17:45
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn oasis_fetch_ret(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn oasis_ret_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:20:45
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn oasis_fetch_err(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:21:44
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn oasis_err_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn oasis_fetch_aad(buf: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:24:44
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn oasis_aad_len(len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn oasis_address(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:38:48
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn oasis_sender(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:39:47
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn oasis_payer(addr: *mut Address) -> ExtStatusCode;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:43:72
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn oasis_read(key: *const u8, key_len: u32, value: *mut u8) -> ExtStatusCode;
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:44:81
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn oasis_read_len(key: *const u8, key_len: u32, value_len: *mut u32) -> ExtStatusCode;
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     ) -> ExtStatusCode;
[INFO] [stdout]    |          ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `ExtStatusCode`, which is not FFI-safe
[INFO] [stdout]   --> src/backend/ext.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |     ) -> ExtStatusCode;
[INFO] [stdout]    |          ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: this enum is non-exhaustive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "4471825fdf299934319c780dd3a563f0cb8d647996ff30b9f89b271c15b29547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4471825fdf299934319c780dd3a563f0cb8d647996ff30b9f89b271c15b29547", kill_on_drop: false }`
[INFO] [stdout] 4471825fdf299934319c780dd3a563f0cb8d647996ff30b9f89b271c15b29547