[INFO] fetching crate bigbit 0.0.8...
[INFO] testing bigbit-0.0.8 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate bigbit 0.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate bigbit 0.0.8
[INFO] finished tweaking crates.io crate bigbit 0.0.8
[INFO] tweaked toml for crates.io crate bigbit 0.0.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bigbit 0.0.8 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ad8629980c7e841664185de355f262a4551f837f0a4fb0180cb1d42ff6000c1
[INFO] running `Command { std: "docker" "start" "-a" "2ad8629980c7e841664185de355f262a4551f837f0a4fb0180cb1d42ff6000c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ad8629980c7e841664185de355f262a4551f837f0a4fb0180cb1d42ff6000c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ad8629980c7e841664185de355f262a4551f837f0a4fb0180cb1d42ff6000c1", kill_on_drop: false }`
[INFO] [stdout] 2ad8629980c7e841664185de355f262a4551f837f0a4fb0180cb1d42ff6000c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e60ed8a968e7b4f507c96103119be28027ece82de733ba2061eebdb8bf242051
[INFO] running `Command { std: "docker" "start" "-a" "e60ed8a968e7b4f507c96103119be28027ece82de733ba2061eebdb8bf242051", kill_on_drop: false }`
[INFO] [stderr]    Compiling bigbit v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 282 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 290 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:390:5
[INFO] [stdout]     |
[INFO] [stdout] 390 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/linkedbytes/ops/tryinto.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     if let Ok(power) = $ty::try_from(tbl_power) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 | impl_from_lb_for_primitive!(u128 );
[INFO] [stdout]    | ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_from_lb_for_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CheckedSub` is never used
[INFO] [stdout]    --> src/linkedbytes/ops/sub.rs:129:18
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub(crate) trait CheckedSub<'a, Rhs = &'a Self>: CheckedSubAssign<'a, Rhs> + Sized {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "e60ed8a968e7b4f507c96103119be28027ece82de733ba2061eebdb8bf242051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e60ed8a968e7b4f507c96103119be28027ece82de733ba2061eebdb8bf242051", kill_on_drop: false }`
[INFO] [stdout] e60ed8a968e7b4f507c96103119be28027ece82de733ba2061eebdb8bf242051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dbcba770e3ae60b333eb6d20b736fa094b7d56ad6027e11e0efe8b341a8bc3e
[INFO] running `Command { std: "docker" "start" "-a" "9dbcba770e3ae60b333eb6d20b736fa094b7d56ad6027e11e0efe8b341a8bc3e", kill_on_drop: false }`
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 282 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 290 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:390:5
[INFO] [stdout]     |
[INFO] [stdout] 390 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/linkedbytes/ops/tryinto.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     if let Ok(power) = $ty::try_from(tbl_power) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 | impl_from_lb_for_primitive!(u128 );
[INFO] [stdout]    | ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_from_lb_for_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CheckedSub` is never used
[INFO] [stdout]    --> src/linkedbytes/ops/sub.rs:129:18
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub(crate) trait CheckedSub<'a, Rhs = &'a Self>: CheckedSubAssign<'a, Rhs> + Sized {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bigbit v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 282 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 290 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/headbyte/mod.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:390:5
[INFO] [stdout]     |
[INFO] [stdout] 390 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/linkedbytes/mod.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/linkedbytes/ops/tryinto.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     if let Ok(power) = $ty::try_from(tbl_power) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 | impl_from_lb_for_primitive!(u128 );
[INFO] [stdout]    | ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_from_lb_for_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CheckedSub` is never used
[INFO] [stdout]    --> src/linkedbytes/ops/sub.rs:129:18
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub(crate) trait CheckedSub<'a, Rhs = &'a Self>: CheckedSubAssign<'a, Rhs> + Sized {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "9dbcba770e3ae60b333eb6d20b736fa094b7d56ad6027e11e0efe8b341a8bc3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dbcba770e3ae60b333eb6d20b736fa094b7d56ad6027e11e0efe8b341a8bc3e", kill_on_drop: false }`
[INFO] [stdout] 9dbcba770e3ae60b333eb6d20b736fa094b7d56ad6027e11e0efe8b341a8bc3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 58c6de4600bd3328996272a84ae1b1ca284acdfdc416a28710102ffdf9ae168b
[INFO] running `Command { std: "docker" "start" "-a" "58c6de4600bd3328996272a84ae1b1ca284acdfdc416a28710102ffdf9ae168b", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/headbyte/mod.rs:274:5
[INFO] [stderr]     |
[INFO] [stderr] 274 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/headbyte/mod.rs:282:5
[INFO] [stderr]     |
[INFO] [stderr] 282 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/headbyte/mod.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/headbyte/mod.rs:433:5
[INFO] [stderr]     |
[INFO] [stderr] 433 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/linkedbytes/mod.rs:382:5
[INFO] [stderr]     |
[INFO] [stderr] 382 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/linkedbytes/mod.rs:390:5
[INFO] [stderr]     |
[INFO] [stderr] 390 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/linkedbytes/mod.rs:422:5
[INFO] [stderr]     |
[INFO] [stderr] 422 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/lib.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]   --> src/linkedbytes/ops/tryinto.rs:14:24
[INFO] [stderr]    |
[INFO] [stderr] 14 |                     if let Ok(power) = $ty::try_from(tbl_power) {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 | impl_from_lb_for_primitive!(u128 );
[INFO] [stderr]    | ---------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]    = help: consider replacing the `if let` with a `let`
[INFO] [stderr]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `impl_from_lb_for_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait `CheckedSub` is never used
[INFO] [stderr]    --> src/linkedbytes/ops/sub.rs:129:18
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub(crate) trait CheckedSub<'a, Rhs = &'a Self>: CheckedSubAssign<'a, Rhs> + Sized {
[INFO] [stderr]     |                  ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bigbit` (lib) generated 11 warnings (run `cargo fix --lib -p bigbit` to apply 9 suggestions)
[INFO] [stderr] warning: `bigbit` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bigbit-0582aa205f062731)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::lb_add ... ok
[INFO] [stdout] test tests::lb_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bigbit
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/linkedbytes/lbstring/mod.rs - linkedbytes::lbstring::LBString (line 16) ... FAILED
[INFO] [stdout] test src/linkedbytes/ops/gcd.rs - linkedbytes::ops::gcd::LBNum::gcd (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/linkedbytes/lbstring/mod.rs - linkedbytes::lbstring::LBString (line 16) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/linkedbytes/lbstring/mod.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | let my_string_lb = LBString::from(MY_STRING); // Creates an LBString from a string slice
[INFO] [stdout]    |                    -------------- ^^^^^^^^^ expected `LBString`, found `&str`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/convert/mod.rs:596:8
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/linkedbytes/lbstring/mod.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | let stdstring_lb = LBString::from(stdstring); // Creates an LBString from a String
[INFO] [stdout]    |                    -------------- ^^^^^^^^^ expected `LBString`, found `String`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/convert/mod.rs:596:8
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: From<LBString>` is not satisfied
[INFO] [stdout]   --> src/linkedbytes/lbstring/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | assert_eq!(String::from(my_string_lb), MY_STRING);
[INFO] [stdout]    |            ^^^^^^ the trait `From<LBString>` is not implemented for `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `String` implements `From<&String>`
[INFO] [stdout]              `String` implements `From<&mut str>`
[INFO] [stdout]              `String` implements `From<&str>`
[INFO] [stdout]              `String` implements `From<Box<str>>`
[INFO] [stdout]              `String` implements `From<Cow<'_, str>>`
[INFO] [stdout]              `String` implements `From<char>`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: From<LBString>` is not satisfied
[INFO] [stdout]   --> src/linkedbytes/lbstring/mod.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | assert_eq!(String::from(stdstring_lb), "This is a standard string!");
[INFO] [stdout]    |            ^^^^^^ the trait `From<LBString>` is not implemented for `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `String` implements `From<&String>`
[INFO] [stdout]              `String` implements `From<&mut str>`
[INFO] [stdout]              `String` implements `From<&str>`
[INFO] [stdout]              `String` implements `From<Box<str>>`
[INFO] [stdout]              `String` implements `From<Cow<'_, str>>`
[INFO] [stdout]              `String` implements `From<char>`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: From<LBString>` is not satisfied
[INFO] [stdout]   --> src/linkedbytes/lbstring/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | assert_eq!(String::from(my_string_lb_2), MY_STRING);
[INFO] [stdout]    |            ^^^^^^ the trait `From<LBString>` is not implemented for `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `String` implements `From<&String>`
[INFO] [stdout]              `String` implements `From<&mut str>`
[INFO] [stdout]              `String` implements `From<&str>`
[INFO] [stdout]              `String` implements `From<Box<str>>`
[INFO] [stdout]              `String` implements `From<Cow<'_, str>>`
[INFO] [stdout]              `String` implements `From<char>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/linkedbytes/ops/gcd.rs - linkedbytes::ops::gcd::LBNum::gcd (line 10) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] [src/linkedbytes/ops/gcd.rs:24:21] &lhs = LBNum(
[INFO] [stdout]     LBSequence(
[INFO] [stdout]         [
[INFO] [stdout]             LinkedByte(
[INFO] [stdout]                 18,
[INFO] [stdout]                 "end",
[INFO] [stdout]             ),
[INFO] [stdout]         ],
[INFO] [stdout]     ),
[INFO] [stdout] )
[INFO] [stdout] [src/linkedbytes/ops/gcd.rs:25:21] &rhs = LBNum(
[INFO] [stdout]     LBSequence(
[INFO] [stdout]         [
[INFO] [stdout]             LinkedByte(
[INFO] [stdout]                 12,
[INFO] [stdout]                 "end",
[INFO] [stdout]             ),
[INFO] [stdout]         ],
[INFO] [stdout]     ),
[INFO] [stdout] )
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (62) panicked at src/linkedbytes/ops/sub.rs:113:17:
[INFO] [stdout] BigBit integer underflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x61a2cb67fce2 - std::backtrace_rs::backtrace::libunwind::trace::h7cddb8376417e7cc
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x61a2cb67fce2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb4e41acf4b349ff1
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x61a2cb67fce2 - std::sys::backtrace::_print_fmt::h1222b80910ba6eb5
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x61a2cb67fce2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5bb8a979ba5db788
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x61a2cb68ea6f - core::fmt::rt::Argument::fmt::h2ee2c138a50a7796
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x61a2cb68ea6f - core::fmt::write::h1e0dbf07fe3990bd
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x61a2cb65d5e3 - std::io::default_write_fmt::hb0810a37865e52a5
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x61a2cb65d5e3 - std::io::Write::write_fmt::h12c8908aaac7ca22
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x61a2cb662912 - std::sys::backtrace::BacktraceLock::print::h788d486777205086
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x61a2cb6642ac - std::panicking::default_hook::{{closure}}::ha7bdfeb5949fc0fa
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x61a2cb664106 - std::panicking::default_hook::h6dad75ec721846f4
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x61a2cb664885 - std::panicking::panic_with_hook::hba00e869ada17676
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x61a2cb663ffc - std::panicking::begin_panic::{{closure}}::h9a170b14ab031998
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:771:9
[INFO] [stdout]   13:     0x61a2cb662a59 - std::sys::backtrace::__rust_end_short_backtrace::hcaa465788ea2ec91
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x61a2cb663fc9 - std::panicking::begin_panic::hd649790486a16e6e
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:770:5
[INFO] [stdout]   15:     0x61a2cb650f87 - bigbit::linkedbytes::ops::sub::<impl core::ops::arith::SubAssign<&bigbit::linkedbytes::LBNum> for bigbit::linkedbytes::LBNum>::sub_assign::h6a09d07a9cdd77b2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linkedbytes/ops/sub.rs:113:17
[INFO] [stdout]   16:     0x61a2cb650f87 - bigbit::linkedbytes::ops::gcd::<impl bigbit::Gcd for bigbit::linkedbytes::LBNum>::gcd::h99de552f783b7be7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linkedbytes/ops/gcd.rs:26:21
[INFO] [stdout]   17:     0x61a2cb64a246 - rust_out::main::_doctest_main_src_linkedbytes_ops_gcd_rs_10_0::h7912a560a1741c5f
[INFO] [stdout]   18:     0x61a2cb64a076 - rust_out::main::hb2c1f26112d8e974
[INFO] [stdout]   19:     0x61a2cb649dc3 - core::ops::function::FnOnce::call_once::h01e49b384cd31373
[INFO] [stdout]   20:     0x61a2cb649d16 - std::sys::backtrace::__rust_begin_short_backtrace::hc341f747de1a6e5f
[INFO] [stdout]   21:     0x61a2cb649cf9 - std::rt::lang_start::{{closure}}::h5855c6a947873adf
[INFO] [stdout]   22:     0x61a2cb65e9a0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1dc0a50e6295ec78
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   23:     0x61a2cb65e9a0 - std::panicking::catch_unwind::do_call::h209f742e9999044e
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40
[INFO] [stdout]   24:     0x61a2cb65e9a0 - std::panicking::catch_unwind::h508c6e2aa6d72749
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19
[INFO] [stdout]   25:     0x61a2cb65e9a0 - std::panic::catch_unwind::hebcbb24aa9914693
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x61a2cb65e9a0 - std::rt::lang_start_internal::{{closure}}::h703cbe32967ef209
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x61a2cb65e9a0 - std::panicking::catch_unwind::do_call::hf50f2a30bce4e10b
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x61a2cb65e9a0 - std::panicking::catch_unwind::hac448d7e3b12daa3
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x61a2cb65e9a0 - std::panic::catch_unwind::ha9d74a13d77f299c
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x61a2cb65e9a0 - std::rt::lang_start_internal::ha26d244788d1956d
[INFO] [stdout]                                at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x61a2cb649ce1 - std::rt::lang_start::h75941d661fa88314
[INFO] [stdout]   32:     0x61a2cb64a545 - main
[INFO] [stdout]   33:     0x7e04a1da31ca - <unknown>
[INFO] [stdout]   34:     0x7e04a1da328b - __libc_start_main
[INFO] [stdout]   35:     0x61a2cb649bf5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/linkedbytes/lbstring/mod.rs - linkedbytes::lbstring::LBString (line 16)
[INFO] [stdout]     src/linkedbytes/ops/gcd.rs - linkedbytes::ops::gcd::LBNum::gcd (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "58c6de4600bd3328996272a84ae1b1ca284acdfdc416a28710102ffdf9ae168b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c6de4600bd3328996272a84ae1b1ca284acdfdc416a28710102ffdf9ae168b", kill_on_drop: false }`
[INFO] [stdout] 58c6de4600bd3328996272a84ae1b1ca284acdfdc416a28710102ffdf9ae168b