[INFO] fetching crate ethnum 1.5.2...
[INFO] checking ethnum-1.5.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ethnum 1.5.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ethnum 1.5.2
[INFO] finished tweaking crates.io crate ethnum 1.5.2
[INFO] tweaked toml for crates.io crate ethnum 1.5.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ethnum 1.5.2 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 ethnum 1.5.2 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 94690c0b433f2e12ceaf747f6dcbdd79bd38b4f2b983ab4fac3df052f998a262
[INFO] running `Command { std: "docker" "start" "-a" "94690c0b433f2e12ceaf747f6dcbdd79bd38b4f2b983ab4fac3df052f998a262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94690c0b433f2e12ceaf747f6dcbdd79bd38b4f2b983ab4fac3df052f998a262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94690c0b433f2e12ceaf747f6dcbdd79bd38b4f2b983ab4fac3df052f998a262", kill_on_drop: false }`
[INFO] [stdout] 94690c0b433f2e12ceaf747f6dcbdd79bd38b4f2b983ab4fac3df052f998a262
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3df5ec68497babf2986981d9e3f5bacd9d095336ec01e1e0e67c05f38a144686
[INFO] running `Command { std: "docker" "start" "-a" "3df5ec68497babf2986981d9e3f5bacd9d095336ec01e1e0e67c05f38a144686", kill_on_drop: false }`
[INFO] [stderr]     Checking ethnum v1.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethnum` (lib) due to 8 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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/int/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for I256 | i128 {
[INFO] [stdout]  19 | |         add => iadd2, iadd3, iaddc;
[INFO] [stdout]  20 | |         mul => imul2, imul3, imulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:321:29
[INFO] [stdout]     |
[INFO] [stdout] 321 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_extra_variants` which comes from the expansion of the macro `impl_ops` (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<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/macros/ops.rs:510:29
[INFO] [stdout]     |
[INFO] [stdout] 510 |                       let b = u32::try_from($lhs).unwrap_or(u32::MAX);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uint/ops.rs:17:1
[INFO] [stdout]     |
[INFO] [stdout]  17 | / impl_ops! {
[INFO] [stdout]  18 | |     for U256 | u128 {
[INFO] [stdout]  19 | |         add => uadd2, uadd3, uaddc;
[INFO] [stdout]  20 | |         mul => umul2, umul3, umulc;
[INFO] [stdout] ...   |
[INFO] [stdout]  29 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `__impl_ops_shift_assign_extra_variants` which comes from the expansion of the macro `impl_ops` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethnum` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "3df5ec68497babf2986981d9e3f5bacd9d095336ec01e1e0e67c05f38a144686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df5ec68497babf2986981d9e3f5bacd9d095336ec01e1e0e67c05f38a144686", kill_on_drop: false }`
[INFO] [stdout] 3df5ec68497babf2986981d9e3f5bacd9d095336ec01e1e0e67c05f38a144686