[INFO] crate blake2b-ref 0.1.0 is already in cache
[INFO] checking blake2b-ref-0.1.0 against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166
[INFO] extracting crate blake2b-ref 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blake2b-ref 0.1.0 on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e88ab208fa55cd860a38fd2001c667184f79effa81dae9f507bf27aef37915f4
[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" "e88ab208fa55cd860a38fd2001c667184f79effa81dae9f507bf27aef37915f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e88ab208fa55cd860a38fd2001c667184f79effa81dae9f507bf27aef37915f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88ab208fa55cd860a38fd2001c667184f79effa81dae9f507bf27aef37915f4", kill_on_drop: false }`
[INFO] [stdout] e88ab208fa55cd860a38fd2001c667184f79effa81dae9f507bf27aef37915f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 021a4edf797daaa1abb6f89b0db28add1efdc9227aa99c80307a2911ab675c9c
[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" "021a4edf797daaa1abb6f89b0db28add1efdc9227aa99c80307a2911ab675c9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking faster-hex v0.4.1
[INFO] [stderr]     Checking 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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.114
[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]    = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]     = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[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]      = help: add `#![feature(slice_fill)]` to the crate attributes to enable `core::slice::<impl [T]>::fill`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.34s
[INFO] running `Command { std: "docker" "inspect" "021a4edf797daaa1abb6f89b0db28add1efdc9227aa99c80307a2911ab675c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "021a4edf797daaa1abb6f89b0db28add1efdc9227aa99c80307a2911ab675c9c", kill_on_drop: false }`
[INFO] [stdout] 021a4edf797daaa1abb6f89b0db28add1efdc9227aa99c80307a2911ab675c9c