[INFO] crate blake2b-ref 0.1.0 is already in cache
[INFO] testing blake2b-ref-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate blake2b-ref 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate blake2b-ref 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blake2b-ref 0.1.0
[INFO] finished tweaking crates.io crate blake2b-ref 0.1.0
[INFO] tweaked toml for crates.io crate blake2b-ref 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19ec29199edaca8713765b74d57793e13072da842b6e9cf034ffd4d5a888aab7
[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" "19ec29199edaca8713765b74d57793e13072da842b6e9cf034ffd4d5a888aab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19ec29199edaca8713765b74d57793e13072da842b6e9cf034ffd4d5a888aab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ec29199edaca8713765b74d57793e13072da842b6e9cf034ffd4d5a888aab7", kill_on_drop: false }`
[INFO] [stdout] 19ec29199edaca8713765b74d57793e13072da842b6e9cf034ffd4d5a888aab7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 896c95664e82d518e9964cb3950fb82fcb6ccd9cb66f4066aa52a20cf31280ce
[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" "896c95664e82d518e9964cb3950fb82fcb6ccd9cb66f4066aa52a20cf31280ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling blake2b-ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/blake2b_ref.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 |     v.fill(0, n);
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:425:10
[INFO] [stdout]     |
[INFO] [stdout] 425 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:428:10
[INFO] [stdout]     |
[INFO] [stdout] 428 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:431:10
[INFO] [stdout]     |
[INFO] [stdout] 431 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:482:10
[INFO] [stdout]     |
[INFO] [stdout] 482 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:485:10
[INFO] [stdout]     |
[INFO] [stdout] 485 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:488:10
[INFO] [stdout]     |
[INFO] [stdout] 488 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/blake2b_ref.rs:3950:38
[INFO] [stdout]      |
[INFO] [stdout] 3950 |     (*S).buf[(*S).buflen as usize..].fill(
[INFO] [stdout]      |                                      ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]   --> src/blake2b_ref.rs:87:44
[INFO] [stdout]    |
[INFO] [stdout] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stdout]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using a raw pointer instead
[INFO] [stdout]    = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "896c95664e82d518e9964cb3950fb82fcb6ccd9cb66f4066aa52a20cf31280ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896c95664e82d518e9964cb3950fb82fcb6ccd9cb66f4066aa52a20cf31280ce", kill_on_drop: false }`
[INFO] [stdout] 896c95664e82d518e9964cb3950fb82fcb6ccd9cb66f4066aa52a20cf31280ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd1577f7f12d1fd0e47a1a245a45f6704a17c670f0c8c996363c9985e0f46726
[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" "dd1577f7f12d1fd0e47a1a245a45f6704a17c670f0c8c996363c9985e0f46726", kill_on_drop: false }`
[INFO] [stderr]    Compiling faster-hex v0.4.1
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/blake2b_ref.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 |     v.fill(0, n);
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:425:10
[INFO] [stdout]     |
[INFO] [stdout] 425 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:428:10
[INFO] [stdout]     |
[INFO] [stdout] 428 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:431:10
[INFO] [stdout]     |
[INFO] [stdout] 431 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:482:10
[INFO] [stdout]     |
[INFO] [stdout] 482 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:485:10
[INFO] [stdout]     |
[INFO] [stdout] 485 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:488:10
[INFO] [stdout]     |
[INFO] [stdout] 488 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/blake2b_ref.rs:3950:38
[INFO] [stdout]      |
[INFO] [stdout] 3950 |     (*S).buf[(*S).buflen as usize..].fill(
[INFO] [stdout]      |                                      ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]   --> src/blake2b_ref.rs:87:44
[INFO] [stdout]    |
[INFO] [stdout] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stdout]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using a raw pointer instead
[INFO] [stdout]    = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling blake2b-ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/blake2b_ref.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 |     v.fill(0, n);
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:425:10
[INFO] [stdout]     |
[INFO] [stdout] 425 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:428:10
[INFO] [stdout]     |
[INFO] [stdout] 428 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:431:10
[INFO] [stdout]     |
[INFO] [stdout] 431 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:482:10
[INFO] [stdout]     |
[INFO] [stdout] 482 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:485:10
[INFO] [stdout]     |
[INFO] [stdout] 485 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/blake2b_ref.rs:488:10
[INFO] [stdout]     |
[INFO] [stdout] 488 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/blake2b_ref.rs:3950:38
[INFO] [stdout]      |
[INFO] [stdout] 3950 |     (*S).buf[(*S).buflen as usize..].fill(
[INFO] [stdout]      |                                      ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]   --> src/blake2b_ref.rs:87:44
[INFO] [stdout]    |
[INFO] [stdout] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stdout]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using a raw pointer instead
[INFO] [stdout]    = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "dd1577f7f12d1fd0e47a1a245a45f6704a17c670f0c8c996363c9985e0f46726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1577f7f12d1fd0e47a1a245a45f6704a17c670f0c8c996363c9985e0f46726", kill_on_drop: false }`
[INFO] [stdout] dd1577f7f12d1fd0e47a1a245a45f6704a17c670f0c8c996363c9985e0f46726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88dc421cd0005c2109935e8ed89fdbc9f3555bc417214bc4eff96f1d64878832
[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" "88dc421cd0005c2109935e8ed89fdbc9f3555bc417214bc4eff96f1d64878832", kill_on_drop: false }`
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/blake2b_ref.rs:88:7
[INFO] [stderr]    |
[INFO] [stderr] 88 |     v.fill(0, n);
[INFO] [stderr]    |       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:425:10
[INFO] [stderr]     |
[INFO] [stderr] 425 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:428:10
[INFO] [stderr]     |
[INFO] [stderr] 428 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:431:10
[INFO] [stderr]     |
[INFO] [stderr] 431 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:482:10
[INFO] [stderr]     |
[INFO] [stderr] 482 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:485:10
[INFO] [stderr]     |
[INFO] [stderr] 485 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:488:10
[INFO] [stderr]     |
[INFO] [stderr] 488 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]     --> src/blake2b_ref.rs:3950:38
[INFO] [stderr]      |
[INFO] [stderr] 3950 |     (*S).buf[(*S).buflen as usize..].fill(
[INFO] [stderr]      |                                      ^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]      = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stderr]   --> src/blake2b_ref.rs:87:44
[INFO] [stderr]    |
[INFO] [stderr] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stderr]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = help: consider using a raw pointer instead
[INFO] [stderr]    = note: slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/blake2b_ref.rs:88:7
[INFO] [stderr]    |
[INFO] [stderr] 88 |     v.fill(0, n);
[INFO] [stderr]    |       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:425:10
[INFO] [stderr]     |
[INFO] [stderr] 425 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:428:10
[INFO] [stderr]     |
[INFO] [stderr] 428 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:431:10
[INFO] [stderr]     |
[INFO] [stderr] 431 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:482:10
[INFO] [stderr]     |
[INFO] [stderr] 482 |         .fill(0, ::core::mem::size_of::<[uint8_t; 14]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:485:10
[INFO] [stderr]     |
[INFO] [stderr] 485 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/blake2b_ref.rs:488:10
[INFO] [stderr]     |
[INFO] [stderr] 488 |         .fill(0, ::core::mem::size_of::<[uint8_t; 16]>());
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]     --> src/blake2b_ref.rs:3950:38
[INFO] [stderr]      |
[INFO] [stderr] 3950 |     (*S).buf[(*S).buflen as usize..].fill(
[INFO] [stderr]      |                                      ^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]      = help: call with fully qualified syntax `Fill::fill(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stderr]   --> src/blake2b_ref.rs:87:44
[INFO] [stderr]    |
[INFO] [stderr] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stderr]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = help: consider using a raw pointer instead
[INFO] [stderr]    = note: slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blake2b_ref-b0fd3738038b1807
[INFO] [stdout] test wrapper::tests::test_full ... ok
[INFO] [stderr]    Doc-tests blake2b-ref
[INFO] [stdout] test tests::test_blake2b ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "88dc421cd0005c2109935e8ed89fdbc9f3555bc417214bc4eff96f1d64878832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88dc421cd0005c2109935e8ed89fdbc9f3555bc417214bc4eff96f1d64878832", kill_on_drop: false }`
[INFO] [stdout] 88dc421cd0005c2109935e8ed89fdbc9f3555bc417214bc4eff96f1d64878832