[INFO] fetching crate metron_core 0.0.1...
[INFO] checking metron_core-0.0.1 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate metron_core 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate metron_core 0.0.1
[INFO] finished tweaking crates.io crate metron_core 0.0.1
[INFO] tweaked toml for crates.io crate metron_core 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metron_core 0.0.1 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "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" "+52995a223f2919dd3e2e427231db90a257350ded" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d
[INFO] running `Command { std: "docker" "start" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking metron_core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `N`
[INFO] [stdout]    --> src/unit/scale/exp.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Ordering::Equal => from.num.into(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 129 -             Ordering::Equal => from.num.into(),
[INFO] [stdout] 129 +             Ordering::Equal => from.num,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 129 -             Ordering::Equal => from.num.into(),
[INFO] [stdout] 129 +             Ordering::Equal => <N as Into<_>>::into(from.num),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metron_core` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `One` is never constructed
[INFO] [stdout]    --> src/unit/scale/exp.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |             pub    One[ BP10 =^ E0, BP1000 =^ E0, ],
[INFO] [stdout]     |                    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `def_exp_scale` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `E0` is never constructed
[INFO] [stdout]    --> src/unit/scale/exp.rs:163:21
[INFO] [stdout]     |
[INFO] [stdout] 163 |             pub     E0[f32 =    0.0, f64 =    0.0,],
[INFO] [stdout]     |                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `def_exp_scale_exp` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `N`
[INFO] [stdout]    --> src/unit/scale/exp.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Ordering::Equal => from.num.into(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 129 -             Ordering::Equal => from.num.into(),
[INFO] [stdout] 129 +             Ordering::Equal => from.num,
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 129 -             Ordering::Equal => from.num.into(),
[INFO] [stdout] 129 +             Ordering::Equal => <N as Into<_>>::into(from.num),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]    --> src/measure.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn format_default() {
[INFO] [stdout]     |     ------------------- move the `impl` block outside of this function `format_default`
[INFO] [stdout] 272 |         impl crate::fmt::Symbol<()> for USome {
[INFO] [stdout]     |         ^^^^^------------------^^^^^^^^^-----
[INFO] [stdout]     |              |                          |
[INFO] [stdout]     |              |                          `USome` is not local
[INFO] [stdout]     |              `Symbol` is not local
[INFO] [stdout]     |
[INFO] [stdout]     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]     = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metron_core` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d", kill_on_drop: false }`
[INFO] [stdout] aff260efeedcdfbf571ad39906631928ecefe8facb3e26cc77b0af7fccbd5c0d
