[INFO] cloning repository https://github.com/rust-amplify/amplify-num
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-amplify/amplify-num" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-amplify%2Famplify-num", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-amplify%2Famplify-num'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a89c7aaac7374aa55d4919a7f950283d66758a9
[INFO] checking rust-amplify/amplify-num against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-amplify%2Famplify-num" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-amplify/amplify-num on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] finished tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] tweaked toml for git repo https://github.com/rust-amplify/amplify-num written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-amplify/amplify-num 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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/apfloat/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr] warning: /workspace/builds/worker-6-tc1/source/num/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking rust-amplify/amplify-num against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-amplify%2Famplify-num" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-amplify/amplify-num on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] finished tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] tweaked toml for git repo https://github.com/rust-amplify/amplify-num written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-amplify/amplify-num 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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-6-tc2/source/num/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr] warning: /workspace/builds/worker-6-tc2/source/apfloat/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking rust-amplify/amplify-num against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-amplify%2Famplify-num" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-amplify/amplify-num on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] finished tweaking git repo https://github.com/rust-amplify/amplify-num
[INFO] tweaked toml for git repo https://github.com/rust-amplify/amplify-num written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-amplify/amplify-num 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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-6-tc2/source/apfloat/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr] warning: /workspace/builds/worker-6-tc2/source/num/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a57dd0f3936aa330ea72c25f4e3994bc1bfca7a1fcd30107d9140ac8d8f863ad
[INFO] running `Command { std: "docker" "start" "-a" "a57dd0f3936aa330ea72c25f4e3994bc1bfca7a1fcd30107d9140ac8d8f863ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a57dd0f3936aa330ea72c25f4e3994bc1bfca7a1fcd30107d9140ac8d8f863ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a57dd0f3936aa330ea72c25f4e3994bc1bfca7a1fcd30107d9140ac8d8f863ad", kill_on_drop: false }`
[INFO] [stdout] a57dd0f3936aa330ea72c25f4e3994bc1bfca7a1fcd30107d9140ac8d8f863ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b4b8876034ceb9598546cebe010bc5dce4d9b1dc537d61409fba85058a6f1b6
[INFO] running `Command { std: "docker" "start" "-a" "5b4b8876034ceb9598546cebe010bc5dce4d9b1dc537d61409fba85058a6f1b6", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/apfloat/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr] warning: /opt/rustwide/workdir/num/Cargo.toml: unused manifest key: target.cfg(target_arch = "wasm32").features
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking amplify_num v0.5.1 (/opt/rustwide/workdir/num)
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking amplify_apfloat v0.2.0 (/opt/rustwide/workdir/apfloat)
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:101:66
[INFO] [stdout]     |
[INFO] [stdout] 101 |             assert_eq!(expected, a1.category(), "{:#x} + {:#x}", op1, op2);
[INFO] [stdout]     |                                                  -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:101:71
[INFO] [stdout]     |
[INFO] [stdout] 101 |             assert_eq!(expected, a1.category(), "{:#x} + {:#x}", op1, op2);
[INFO] [stdout]     |                                                          -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:108:66
[INFO] [stdout]     |
[INFO] [stdout] 108 |             assert_eq!(expected, a2.category(), "{:#x} + {:#x}", op2, op1);
[INFO] [stdout]     |                                                  -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:108:71
[INFO] [stdout]     |
[INFO] [stdout] 108 |             assert_eq!(expected, a2.category(), "{:#x} + {:#x}", op2, op1);
[INFO] [stdout]     |                                                          -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:172:65
[INFO] [stdout]     |
[INFO] [stdout] 172 |             assert_eq!(expected, a1.to_bits(), "{:#x} + {:#x}", op1, op2);
[INFO] [stdout]     |                                                 -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:172:70
[INFO] [stdout]     |
[INFO] [stdout] 172 |             assert_eq!(expected, a1.to_bits(), "{:#x} + {:#x}", op1, op2);
[INFO] [stdout]     |                                                         -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                         |
[INFO] [stdout]     |                                                         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:179:65
[INFO] [stdout]     |
[INFO] [stdout] 179 |             assert_eq!(expected, a2.to_bits(), "{:#x} + {:#x}", op2, op1);
[INFO] [stdout]     |                                                 -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:179:70
[INFO] [stdout]     |
[INFO] [stdout] 179 |             assert_eq!(expected, a2.to_bits(), "{:#x} + {:#x}", op2, op1);
[INFO] [stdout]     |                                                         -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                         |
[INFO] [stdout]     |                                                         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:208:61
[INFO] [stdout]     |
[INFO] [stdout] 208 |         assert_eq!(expected, a1.to_bits(), "{:#x} - {:#x}", op1, op2);
[INFO] [stdout]     |                                             -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:208:66
[INFO] [stdout]     |
[INFO] [stdout] 208 |         assert_eq!(expected, a1.to_bits(), "{:#x} - {:#x}", op1, op2);
[INFO] [stdout]     |                                                     -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:266:66
[INFO] [stdout]     |
[INFO] [stdout] 266 |             assert_eq!(expected, a1.category(), "{:#x} * {:#x}", op1, op2);
[INFO] [stdout]     |                                                  -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:266:71
[INFO] [stdout]     |
[INFO] [stdout] 266 |             assert_eq!(expected, a1.category(), "{:#x} * {:#x}", op1, op2);
[INFO] [stdout]     |                                                          -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:273:66
[INFO] [stdout]     |
[INFO] [stdout] 273 |             assert_eq!(expected, a2.category(), "{:#x} * {:#x}", op2, op1);
[INFO] [stdout]     |                                                  -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:273:71
[INFO] [stdout]     |
[INFO] [stdout] 273 |             assert_eq!(expected, a2.category(), "{:#x} * {:#x}", op2, op1);
[INFO] [stdout]     |                                                          -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:352:65
[INFO] [stdout]     |
[INFO] [stdout] 352 |             assert_eq!(expected, a1.to_bits(), "{:#x} * {:#x}", op1, op2);
[INFO] [stdout]     |                                                 -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:352:70
[INFO] [stdout]     |
[INFO] [stdout] 352 |             assert_eq!(expected, a1.to_bits(), "{:#x} * {:#x}", op1, op2);
[INFO] [stdout]     |                                                         -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                         |
[INFO] [stdout]     |                                                         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:359:65
[INFO] [stdout]     |
[INFO] [stdout] 359 |             assert_eq!(expected, a2.to_bits(), "{:#x} * {:#x}", op2, op1);
[INFO] [stdout]     |                                                 -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:359:70
[INFO] [stdout]     |
[INFO] [stdout] 359 |             assert_eq!(expected, a2.to_bits(), "{:#x} * {:#x}", op2, op1);
[INFO] [stdout]     |                                                         -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                         |
[INFO] [stdout]     |                                                         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:383:61
[INFO] [stdout]     |
[INFO] [stdout] 383 |         assert_eq!(expected, a1.to_bits(), "{:#x} / {:#x}", op1, op2);
[INFO] [stdout]     |                                             -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:383:66
[INFO] [stdout]     |
[INFO] [stdout] 383 |         assert_eq!(expected, a1.to_bits(), "{:#x} / {:#x}", op1, op2);
[INFO] [stdout]     |                                                     -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:409:74
[INFO] [stdout]     |
[INFO] [stdout] 409 |         assert_eq!(expected, result.to_bits(), "ieee_rem({:#x}, {:#x})", op1, op2);
[INFO] [stdout]     |                                                          -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:409:79
[INFO] [stdout]     |
[INFO] [stdout] 409 |         assert_eq!(expected, result.to_bits(), "ieee_rem({:#x}, {:#x})", op1, op2);
[INFO] [stdout]     |                                                                 -----         ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                                 |
[INFO] [stdout]     |                                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:437:65
[INFO] [stdout]     |
[INFO] [stdout] 437 |         assert_eq!(expected, r.to_bits(), "fmod({:#x}, {:#x})", op1, op2);
[INFO] [stdout]     |                                                 -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:437:70
[INFO] [stdout]     |
[INFO] [stdout] 437 |         assert_eq!(expected, r.to_bits(), "fmod({:#x}, {:#x})", op1, op2);
[INFO] [stdout]     |                                                        -----         ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:507:76
[INFO] [stdout]     |
[INFO] [stdout] 507 |         assert_eq!(expected, a1.partial_cmp(&a2), "compare({:#x}, {:#x})", op1, op2,);
[INFO] [stdout]     |                                                            -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:507:81
[INFO] [stdout]     |
[INFO] [stdout] 507 |         assert_eq!(expected, a1.partial_cmp(&a2), "compare({:#x}, {:#x})", op1, op2,);
[INFO] [stdout]     |                                                                   -----         ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                                   |
[INFO] [stdout]     |                                                                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:533:66
[INFO] [stdout]     |
[INFO] [stdout] 533 |         assert_eq!(expected, a1.bitwise_eq(a2), "{:#x} = {:#x}", op1, op2);
[INFO] [stdout]     |                                                  -----           ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u256: LowerHex` is not satisfied
[INFO] [stdout]    --> apfloat/tests/ppc.rs:533:71
[INFO] [stdout]     |
[INFO] [stdout] 533 |         assert_eq!(expected, a1.bitwise_eq(a2), "{:#x} = {:#x}", op1, op2);
[INFO] [stdout]     |                                                          -----        ^^^ the trait `LowerHex` is not implemented for `u256`
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `LowerHex`:
[INFO] [stdout]               isize
[INFO] [stdout]               i8
[INFO] [stdout]               i16
[INFO] [stdout]               i32
[INFO] [stdout]               i64
[INFO] [stdout]               i128
[INFO] [stdout]               usize
[INFO] [stdout]               u8
[INFO] [stdout]             and 29 others
[INFO] [stdout] note: required by a bound in `core::fmt::rt::Argument::<'a>::new_lower_hex`
[INFO] [stdout]    --> /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:108:5
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amplify_apfloat` (test "ppc") due to 29 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5b4b8876034ceb9598546cebe010bc5dce4d9b1dc537d61409fba85058a6f1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4b8876034ceb9598546cebe010bc5dce4d9b1dc537d61409fba85058a6f1b6", kill_on_drop: false }`
[INFO] [stdout] 5b4b8876034ceb9598546cebe010bc5dce4d9b1dc537d61409fba85058a6f1b6