[INFO] fetching crate rithm 14.6.0...
[INFO] checking rithm-14.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rithm 14.6.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rithm 14.6.0
[INFO] finished tweaking crates.io crate rithm 14.6.0
[INFO] tweaked toml for crates.io crate rithm 14.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rithm 14.6.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding pyo3 v0.23.5 (available: v0.27.1)
[INFO] [stderr]       Adding pyo3-build-config v0.23.5 (available: v0.27.1)
[INFO] [stderr]       Adding pyo3-ffi v0.23.5 (available: v0.27.1)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ab2269945357317df73ff14ec31f83c5849c1eb71b5ef7a0fed440196ec78f20
[INFO] running `Command { std: "docker" "start" "-a" "ab2269945357317df73ff14ec31f83c5849c1eb71b5ef7a0fed440196ec78f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2269945357317df73ff14ec31f83c5849c1eb71b5ef7a0fed440196ec78f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2269945357317df73ff14ec31f83c5849c1eb71b5ef7a0fed440196ec78f20", kill_on_drop: false }`
[INFO] [stdout] ab2269945357317df73ff14ec31f83c5849c1eb71b5ef7a0fed440196ec78f20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3ec938db62aff280b5d325dfab3f2ebdeb828a3f11efbcd76d356b1c6e191436
[INFO] running `Command { std: "docker" "start" "-a" "3ec938db62aff280b5d325dfab3f2ebdeb828a3f11efbcd76d356b1c6e191436", kill_on_drop: false }`
[INFO] [stderr]    Compiling pyo3-build-config v0.23.5
[INFO] [stderr]     Checking traiter v4.0.0
[INFO] [stderr]    Compiling rithm v14.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constant `MIN_EXP` is never used
[INFO] [stdout]    --> src/traits.rs:157:11
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub trait MinExp {
[INFO] [stdout]     |           ------ associated constant in this trait
[INFO] [stdout] 157 |     const MIN_EXP: i32;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/big_int/checked_shl.rs:227:29
[INFO] [stdout]     |
[INFO] [stdout] 227 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 | checked_shl_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[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 `checked_shl_unsigned_integer_impl` (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/big_int/checked_shl.rs:274:29
[INFO] [stdout]     |
[INFO] [stdout] 274 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 | checked_shl_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shl_unsigned_integer_impl` (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/big_int/checked_shr.rs:271:29
[INFO] [stdout]     |
[INFO] [stdout] 271 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 | checked_shr_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shr_unsigned_integer_impl` (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/big_int/checked_shr.rs:317:29
[INFO] [stdout]     |
[INFO] [stdout] 317 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 | checked_shr_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shr_unsigned_integer_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rithm` (lib test) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated constant `MIN_EXP` is never used
[INFO] [stdout]    --> src/traits.rs:157:11
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub trait MinExp {
[INFO] [stdout]     |           ------ associated constant in this trait
[INFO] [stdout] 157 |     const MIN_EXP: i32;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/big_int/checked_shl.rs:227:29
[INFO] [stdout]     |
[INFO] [stdout] 227 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 | checked_shl_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[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 `checked_shl_unsigned_integer_impl` (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/big_int/checked_shl.rs:274:29
[INFO] [stdout]     |
[INFO] [stdout] 274 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 | checked_shl_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shl_unsigned_integer_impl` (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/big_int/checked_shr.rs:271:29
[INFO] [stdout]     |
[INFO] [stdout] 271 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 | checked_shr_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shr_unsigned_integer_impl` (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/big_int/checked_shr.rs:317:29
[INFO] [stdout]     |
[INFO] [stdout] 317 |                             usize::try_from(shift_quotient).unwrap_unchecked()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 | checked_shr_unsigned_integer_impl!(u8 u16 u32 u64 u128 usize);
[INFO] [stdout]     | ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `checked_shr_unsigned_integer_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rithm` (lib) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3ec938db62aff280b5d325dfab3f2ebdeb828a3f11efbcd76d356b1c6e191436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec938db62aff280b5d325dfab3f2ebdeb828a3f11efbcd76d356b1c6e191436", kill_on_drop: false }`
[INFO] [stdout] 3ec938db62aff280b5d325dfab3f2ebdeb828a3f11efbcd76d356b1c6e191436
