[INFO] fetching crate mixlib 0.5.0...
[INFO] checking mixlib-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mixlib 0.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mixlib 0.5.0
[INFO] finished tweaking crates.io crate mixlib 0.5.0
[INFO] tweaked toml for crates.io crate mixlib 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mixlib 0.5.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mixlib 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8d64847b609ac21c100a283711f232b9170cd7ac5ff951b602e62471d2b8617
[INFO] running `Command { std: "docker" "start" "-a" "a8d64847b609ac21c100a283711f232b9170cd7ac5ff951b602e62471d2b8617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8d64847b609ac21c100a283711f232b9170cd7ac5ff951b602e62471d2b8617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d64847b609ac21c100a283711f232b9170cd7ac5ff951b602e62471d2b8617", kill_on_drop: false }`
[INFO] [stdout] a8d64847b609ac21c100a283711f232b9170cd7ac5ff951b602e62471d2b8617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 754e6f9279301dda590d15bb8c6ef12485e409c17d25ff9747452fc8e27404e1
[INFO] running `Command { std: "docker" "start" "-a" "754e6f9279301dda590d15bb8c6ef12485e409c17d25ff9747452fc8e27404e1", kill_on_drop: false }`
[INFO] [stderr]     Checking mixlib v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<isize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1675 | / impl_int_conversions! {
[INFO] [stdout] 1676 | |     main_type = Short;
[INFO] [stdout] 1677 | |     repr_type = i16;
[INFO] [stdout] 1678 | |     main_from_repr_unchecked = from_i16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1684 | |     try_from_main_for_T = u8, u16, u32, u64, u128, usize, i8, isize;
[INFO] [stdout] 1685 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]     --> src/num.rs:1628:21
[INFO] [stdout]      |
[INFO] [stdout] 1628 |                       <$repr_type>::try_from(value)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1699 | / impl_int_conversions! {
[INFO] [stdout] 1700 | |     main_type = MemoryAddress;
[INFO] [stdout] 1701 | |     repr_type = u16;
[INFO] [stdout] 1702 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1708 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1709 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1699 | / impl_int_conversions! {
[INFO] [stdout] 1700 | |     main_type = MemoryAddress;
[INFO] [stdout] 1701 | |     repr_type = u16;
[INFO] [stdout] 1702 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1708 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1709 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1718 | / impl_int_conversions! {
[INFO] [stdout] 1719 | |     main_type = LocationCounter;
[INFO] [stdout] 1720 | |     repr_type = u16;
[INFO] [stdout] 1721 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1727 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1728 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mixlib` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<isize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1675 | / impl_int_conversions! {
[INFO] [stdout] 1676 | |     main_type = Short;
[INFO] [stdout] 1677 | |     repr_type = i16;
[INFO] [stdout] 1678 | |     main_from_repr_unchecked = from_i16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1684 | |     try_from_main_for_T = u8, u16, u32, u64, u128, usize, i8, isize;
[INFO] [stdout] 1685 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]     --> src/num.rs:1628:21
[INFO] [stdout]      |
[INFO] [stdout] 1628 |                       <$repr_type>::try_from(value)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1699 | / impl_int_conversions! {
[INFO] [stdout] 1700 | |     main_type = MemoryAddress;
[INFO] [stdout] 1701 | |     repr_type = u16;
[INFO] [stdout] 1702 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1708 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1709 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1699 | / impl_int_conversions! {
[INFO] [stdout] 1700 | |     main_type = MemoryAddress;
[INFO] [stdout] 1701 | |     repr_type = u16;
[INFO] [stdout] 1702 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1708 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1709 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]     --> src/num.rs:1648:21
[INFO] [stdout]      |
[INFO] [stdout] 1648 |                       <$try_from_main_for_T>::try_from(repr)
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1718 | / impl_int_conversions! {
[INFO] [stdout] 1719 | |     main_type = LocationCounter;
[INFO] [stdout] 1720 | |     repr_type = u16;
[INFO] [stdout] 1721 | |     main_from_repr_unchecked = from_u16_unchecked;
[INFO] [stdout] ...    |
[INFO] [stdout] 1727 | |     try_from_main_for_T = u8, usize, i8, isize;
[INFO] [stdout] 1728 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `impl_int_conversions` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mixlib` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "754e6f9279301dda590d15bb8c6ef12485e409c17d25ff9747452fc8e27404e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754e6f9279301dda590d15bb8c6ef12485e409c17d25ff9747452fc8e27404e1", kill_on_drop: false }`
[INFO] [stdout] 754e6f9279301dda590d15bb8c6ef12485e409c17d25ff9747452fc8e27404e1