[INFO] updating cached repository https://github.com/jjyr/blake2b-ref.rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d5d537cda94a0d97af6e918b3ff3864627aa90d
[INFO] testing jjyr/blake2b-ref.rs against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjyr%2Fblake2b-ref.rs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjyr/blake2b-ref.rs on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jjyr/blake2b-ref.rs
[INFO] finished tweaking git repo https://github.com/jjyr/blake2b-ref.rs
[INFO] tweaked toml for git repo https://github.com/jjyr/blake2b-ref.rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jjyr/blake2b-ref.rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b696def8049040b9a5c2de3bcc8059a68147aa2a4361a4b0c7230b0355a7de50
[INFO] running `"docker" "start" "-a" "b696def8049040b9a5c2de3bcc8059a68147aa2a4361a4b0c7230b0355a7de50"`
[INFO] [stderr]    Compiling blake2b-ref v0.1.0 (/opt/rustwide/workdir)
[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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "b696def8049040b9a5c2de3bcc8059a68147aa2a4361a4b0c7230b0355a7de50"`
[INFO] running `"docker" "rm" "-f" "b696def8049040b9a5c2de3bcc8059a68147aa2a4361a4b0c7230b0355a7de50"`
[INFO] [stdout] b696def8049040b9a5c2de3bcc8059a68147aa2a4361a4b0c7230b0355a7de50
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd8694c0cf9e426e90c12bcc96be2b269835f8784a87bddfce5bf1e88c0487ae
[INFO] running `"docker" "start" "-a" "dd8694c0cf9e426e90c12bcc96be2b269835f8784a87bddfce5bf1e88c0487ae"`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling faster-hex v0.4.1
[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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling blake2b-ref v0.1.0 (/opt/rustwide/workdir)
[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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 37.22s
[INFO] running `"docker" "inspect" "dd8694c0cf9e426e90c12bcc96be2b269835f8784a87bddfce5bf1e88c0487ae"`
[INFO] running `"docker" "rm" "-f" "dd8694c0cf9e426e90c12bcc96be2b269835f8784a87bddfce5bf1e88c0487ae"`
[INFO] [stdout] dd8694c0cf9e426e90c12bcc96be2b269835f8784a87bddfce5bf1e88c0487ae
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b076e93635e0f716d3aa222ce9f6e30d5ef6343a35f49ed0d693ecd75053b69c
[INFO] running `"docker" "start" "-a" "b076e93635e0f716d3aa222ce9f6e30d5ef6343a35f49ed0d693ecd75053b69c"`
[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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[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: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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blake2b_ref-1ed5b027c18f7037
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test wrapper::tests::test_full ... ok
[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] [stderr]    Doc-tests blake2b-ref
[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 `"docker" "inspect" "b076e93635e0f716d3aa222ce9f6e30d5ef6343a35f49ed0d693ecd75053b69c"`
[INFO] running `"docker" "rm" "-f" "b076e93635e0f716d3aa222ce9f6e30d5ef6343a35f49ed0d693ecd75053b69c"`
[INFO] [stdout] b076e93635e0f716d3aa222ce9f6e30d5ef6343a35f49ed0d693ecd75053b69c