[INFO] fetching crate numpress 1.1.0...
[INFO] testing numpress-1.1.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate numpress 1.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate numpress 1.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numpress 1.1.0
[INFO] finished tweaking crates.io crate numpress 1.1.0
[INFO] tweaked toml for crates.io crate numpress 1.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e0300cbc31ad1f0ccfca2e204549412d095d3a75a192afcd1aea2828c6ca2bd
[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" "8e0300cbc31ad1f0ccfca2e204549412d095d3a75a192afcd1aea2828c6ca2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e0300cbc31ad1f0ccfca2e204549412d095d3a75a192afcd1aea2828c6ca2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0300cbc31ad1f0ccfca2e204549412d095d3a75a192afcd1aea2828c6ca2bd", kill_on_drop: false }`
[INFO] [stdout] 8e0300cbc31ad1f0ccfca2e204549412d095d3a75a192afcd1aea2828c6ca2bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef3860b8758bfd9a8f00214e768dfe1fd606cb340a0fdae3b320c349849f4274
[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" "ef3860b8758bfd9a8f00214e768dfe1fd606cb340a0fdae3b320c349849f4274", kill_on_drop: false }`
[INFO] [stderr]    Compiling numpress v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | use sealed::mem::{uninitialized, transmute};
[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/lib.rs:196:27
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let mut fp: [u8; 8] = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:393:36
[INFO] [stdout]     |
[INFO] [stdout] 393 |     let mut half_bytes: [u8; 10] = uninitialized();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:476:30
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:506:25
[INFO] [stdout]     |
[INFO] [stdout] 506 |     let mut buff: u32 = uninitialized();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:139:46
[INFO] [stdout]     |
[INFO] [stdout] 139 |         write!(f, "Numpress error: {}", self.description())
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     -> Result<()>
[INFO] [stdout]     |        ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:362:8
[INFO] [stdout]     |
[INFO] [stdout] 362 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "ef3860b8758bfd9a8f00214e768dfe1fd606cb340a0fdae3b320c349849f4274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef3860b8758bfd9a8f00214e768dfe1fd606cb340a0fdae3b320c349849f4274", kill_on_drop: false }`
[INFO] [stdout] ef3860b8758bfd9a8f00214e768dfe1fd606cb340a0fdae3b320c349849f4274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0f910eff9482b5de03e0d787116855f0f9b8461211eccd8cd5b7889fe2a8c5
[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" "6a0f910eff9482b5de03e0d787116855f0f9b8461211eccd8cd5b7889fe2a8c5", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | use sealed::mem::{uninitialized, transmute};
[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/lib.rs:196:27
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let mut fp: [u8; 8] = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:393:36
[INFO] [stdout]     |
[INFO] [stdout] 393 |     let mut half_bytes: [u8; 10] = uninitialized();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:476:30
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:506:25
[INFO] [stdout]     |
[INFO] [stdout] 506 |     let mut buff: u32 = uninitialized();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:139:46
[INFO] [stdout]     |
[INFO] [stdout] 139 |         write!(f, "Numpress error: {}", self.description())
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     -> Result<()>
[INFO] [stdout]     |        ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:362:8
[INFO] [stdout]     |
[INFO] [stdout] 362 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling numpress v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | use sealed::mem::{uninitialized, transmute};
[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/lib.rs:196:27
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let mut fp: [u8; 8] = uninitialized();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:393:36
[INFO] [stdout]     |
[INFO] [stdout] 393 |     let mut half_bytes: [u8; 10] = uninitialized();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:476:30
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:506:25
[INFO] [stdout]     |
[INFO] [stdout] 506 |     let mut buff: u32 = uninitialized();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:672:35
[INFO] [stdout]     |
[INFO] [stdout] 672 |             let mut xi: [u8; 8] = mem::uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:677:35
[INFO] [stdout]     |
[INFO] [stdout] 677 |             let mut yi: [u8; 8] = mem::uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:139:46
[INFO] [stdout]     |
[INFO] [stdout] 139 |         write!(f, "Numpress error: {}", self.description())
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     -> Result<()>
[INFO] [stdout]     |        ^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:362:8
[INFO] [stdout]     |
[INFO] [stdout] 362 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 |     -> Result<usize>
[INFO] [stdout]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "6a0f910eff9482b5de03e0d787116855f0f9b8461211eccd8cd5b7889fe2a8c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0f910eff9482b5de03e0d787116855f0f9b8461211eccd8cd5b7889fe2a8c5", kill_on_drop: false }`
[INFO] [stdout] 6a0f910eff9482b5de03e0d787116855f0f9b8461211eccd8cd5b7889fe2a8c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6de2dae8c58c05958e3f340053ae79142e46778fd26fbcc7a0ac8fdd6d8988b
[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" "a6de2dae8c58c05958e3f340053ae79142e46778fd26fbcc7a0ac8fdd6d8988b", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:149:32
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:159:19
[INFO] [stderr]     |
[INFO] [stderr] 159 | use sealed::mem::{uninitialized, transmute};
[INFO] [stderr]     |                   ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:196:27
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let mut fp: [u8; 8] = uninitialized();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:364:30
[INFO] [stderr]     |
[INFO] [stderr] 364 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:393:36
[INFO] [stderr]     |
[INFO] [stderr] 393 |     let mut half_bytes: [u8; 10] = uninitialized();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:476:30
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:506:25
[INFO] [stderr]     |
[INFO] [stderr] 506 |     let mut buff: u32 = uninitialized();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:139:46
[INFO] [stderr]     |
[INFO] [stderr] 139 |         write!(f, "Numpress error: {}", self.description())
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<(), Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 |     -> Result<()>
[INFO] [stderr]     |        ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:362:8
[INFO] [stderr]     |
[INFO] [stderr] 362 |     -> Result<usize>
[INFO] [stderr]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:460:8
[INFO] [stderr]     |
[INFO] [stderr] 460 |     -> Result<usize>
[INFO] [stderr]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:149:32
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:159:19
[INFO] [stderr]     |
[INFO] [stderr] 159 | use sealed::mem::{uninitialized, transmute};
[INFO] [stderr]     |                   ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:196:27
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let mut fp: [u8; 8] = uninitialized();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:364:30
[INFO] [stderr]     |
[INFO] [stderr] 364 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:393:36
[INFO] [stderr]     |
[INFO] [stderr] 393 |     let mut half_bytes: [u8; 10] = uninitialized();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:476:30
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let mut ints: [i64; 3] = uninitialized();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:506:25
[INFO] [stderr]     |
[INFO] [stderr] 506 |     let mut buff: u32 = uninitialized();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:672:35
[INFO] [stderr]     |
[INFO] [stderr] 672 |             let mut xi: [u8; 8] = mem::uninitialized();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:677:35
[INFO] [stderr]     |
[INFO] [stderr] 677 |             let mut yi: [u8; 8] = mem::uninitialized();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:139:46
[INFO] [stderr]     |
[INFO] [stderr] 139 |         write!(f, "Numpress error: {}", self.description())
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<(), Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 |     -> Result<()>
[INFO] [stderr]     |        ^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:362:8
[INFO] [stderr]     |
[INFO] [stderr] 362 |     -> Result<usize>
[INFO] [stderr]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::result::Result<usize, Error>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:460:8
[INFO] [stderr]     |
[INFO] [stderr] 460 |     -> Result<usize>
[INFO] [stderr]     |        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/numpress-efeb119998a8fc05
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::compress_test ... ok
[INFO] [stdout] test tests::decompress_test ... ok
[INFO] [stdout] test tests::fuzz_test ... ignored
[INFO] [stdout] test tests::fixed_point_heap_test ... ok
[INFO] [stdout] test tests::fixed_point_test ... ok
[INFO] [stdout] test tests::optimal_scaling_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests numpress
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6de2dae8c58c05958e3f340053ae79142e46778fd26fbcc7a0ac8fdd6d8988b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6de2dae8c58c05958e3f340053ae79142e46778fd26fbcc7a0ac8fdd6d8988b", kill_on_drop: false }`
[INFO] [stdout] a6de2dae8c58c05958e3f340053ae79142e46778fd26fbcc7a0ac8fdd6d8988b
