[INFO] cloning repository https://github.com/jlgerber/levelspecter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jlgerber/levelspecter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Flevelspecter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Flevelspecter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ba3df3a98268f71b828d43e14106664f85ed594
[INFO] testing jlgerber/levelspecter against beta-2021-05-08 for beta-1.53-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Flevelspecter" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jlgerber/levelspecter on toolchain beta-2021-05-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jlgerber/levelspecter
[INFO] finished tweaking git repo https://github.com/jlgerber/levelspecter
[INFO] tweaked toml for git repo https://github.com/jlgerber/levelspecter written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jlgerber/levelspecter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-05-08" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/jlgerber/aschar-casesensitive.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v5.0.0
[INFO] [stderr]   Downloaded lexical-core v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-05-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9fa70d9d5184794a77b05ca6ea0ce6b4ed7cf22196ad5e98d53874c5063e4db9
[INFO] running `Command { std: "docker" "start" "-a" "9fa70d9d5184794a77b05ca6ea0ce6b4ed7cf22196ad5e98d53874c5063e4db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fa70d9d5184794a77b05ca6ea0ce6b4ed7cf22196ad5e98d53874c5063e4db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa70d9d5184794a77b05ca6ea0ce6b4ed7cf22196ad5e98d53874c5063e4db9", kill_on_drop: false }`
[INFO] [stdout] 9fa70d9d5184794a77b05ca6ea0ce6b4ed7cf22196ad5e98d53874c5063e4db9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-05-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a9ee99cf79206810e999aa1a9dd211be8fd0b9cb1735e3a570d5f2de09b81b3
[INFO] running `Command { std: "docker" "start" "-a" "4a9ee99cf79206810e999aa1a9dd211be8fd0b9cb1735e3a570d5f2de09b81b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.31
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/bigcomp.rs:242:55
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let nlz = den.leading_zeros().wrapping_sub(wlz) & (u32::BITS - 1);
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: no implementation for `usize & u32`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/bigcomp.rs:242:53
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let nlz = den.leading_zeros().wrapping_sub(wlz) & (u32::BITS - 1);
[INFO] [stdout]     |                                                     ^ no implementation for `usize & u32`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `BitAnd<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/bigcomp.rs:260:40
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let (q, r) = shift.ceil_divmod(Limb::BITS);
[INFO] [stdout]     |                                        ^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stdout]     |
[INFO] [stdout] help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let (q, r) = shift.ceil_divmod(Limb::BITS.try_into().unwrap());
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/bigint.rs:84:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bytes = bits / Limb::BITS;
[INFO] [stdout]    |                        ^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot divide `usize` by `u32`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/bigint.rs:84:22
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bytes = bits / Limb::BITS;
[INFO] [stdout]    |                      ^ no implementation for `usize / u32`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Div<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1045:42
[INFO] [stdout]      |
[INFO] [stdout] 1045 |     let mut count = index.saturating_mul(Limb::BITS);
[INFO] [stdout]      |                                          ^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1045 |     let mut count = index.saturating_mul(Limb::BITS.try_into().unwrap());
[INFO] [stdout]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1060:28
[INFO] [stdout]      |
[INFO] [stdout] 1060 |     Limb::BITS.checked_mul(x.len())
[INFO] [stdout]      |                            ^^^^^^^ expected `u32`, found `usize`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `usize` to a `u32` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1060 |     Limb::BITS.checked_mul(x.len().try_into().unwrap())
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1061:22
[INFO] [stdout]      |
[INFO] [stdout] 1061 |         .map(|v| v - nlz)
[INFO] [stdout]      |                      ^^^ expected `u32`, found `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `usize` from `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1061:20
[INFO] [stdout]      |
[INFO] [stdout] 1061 |         .map(|v| v - nlz)
[INFO] [stdout]      |                    ^ no implementation for `u32 - usize`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Sub<usize>` is not implemented for `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1062:20
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         .unwrap_or(usize::max_value())
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^ expected `u32`, found `usize`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `usize` to a `u32` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         .unwrap_or(usize::max_value().try_into().unwrap())
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1060:5
[INFO] [stdout]      |
[INFO] [stdout] 1056 |   pub fn bit_length(x: &[Limb]) -> usize {
[INFO] [stdout]      |                                    ----- expected `usize` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 1060 | /     Limb::BITS.checked_mul(x.len())
[INFO] [stdout] 1061 | |         .map(|v| v - nlz)
[INFO] [stdout] 1062 | |         .unwrap_or(usize::max_value())
[INFO] [stdout]      | |______________________________________^ expected `usize`, found `u32`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1060 |     Limb::BITS.checked_mul(x.len())
[INFO] [stdout] 1061 |         .map(|v| v - nlz)
[INFO] [stdout] 1062 |         .unwrap_or(usize::max_value()).try_into().unwrap()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1087:23
[INFO] [stdout]      |
[INFO] [stdout] 1087 |     debug_assert!(n < bits && n != 0);
[INFO] [stdout]      |                       ^^^^ expected `usize`, found `u32`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1087 |     debug_assert!(n < bits.try_into().unwrap() && n != 0);
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1094:25
[INFO] [stdout]      |
[INFO] [stdout] 1094 |     let lshift = bits - n;
[INFO] [stdout]      |                         ^ expected `u32`, found `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `usize` from `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1094:23
[INFO] [stdout]      |
[INFO] [stdout] 1094 |     let lshift = bits - n;
[INFO] [stdout]      |                       ^ no implementation for `u32 - usize`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Sub<usize>` is not implemented for `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1135:19
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let rem = n % bits;
[INFO] [stdout]      |                   ^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot mod `usize` by `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1135:17
[INFO] [stdout]      |
[INFO] [stdout] 1135 |     let rem = n % bits;
[INFO] [stdout]      |                 ^ no implementation for `usize % u32`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Rem<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1136:19
[INFO] [stdout]      |
[INFO] [stdout] 1136 |     let div = n / bits;
[INFO] [stdout]      |                   ^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot divide `usize` by `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1136:17
[INFO] [stdout]      |
[INFO] [stdout] 1136 |     let div = n / bits;
[INFO] [stdout]      |                 ^ no implementation for `usize / u32`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Div<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1192:23
[INFO] [stdout]      |
[INFO] [stdout] 1192 |     debug_assert!(n < bits);
[INFO] [stdout]      |                       ^^^^ expected `usize`, found `u32`
[INFO] [stdout]      |
[INFO] [stdout] help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
[INFO] [stdout]      |
[INFO] [stdout] 1192 |     debug_assert!(n < bits.try_into().unwrap());
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1202:25
[INFO] [stdout]      |
[INFO] [stdout] 1202 |     let rshift = bits - n;
[INFO] [stdout]      |                         ^ expected `u32`, found `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `usize` from `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1202:23
[INFO] [stdout]      |
[INFO] [stdout] 1202 |     let rshift = bits - n;
[INFO] [stdout]      |                       ^ no implementation for `u32 - usize`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Sub<usize>` is not implemented for `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1254:19
[INFO] [stdout]      |
[INFO] [stdout] 1254 |     let rem = n % bits;
[INFO] [stdout]      |                   ^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot mod `usize` by `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1254:17
[INFO] [stdout]      |
[INFO] [stdout] 1254 |     let rem = n % bits;
[INFO] [stdout]      |                 ^ no implementation for `usize % u32`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Rem<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1255:19
[INFO] [stdout]      |
[INFO] [stdout] 1255 |     let div = n / bits;
[INFO] [stdout]      |                   ^^^^ expected `usize`, found `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot divide `usize` by `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:1255:17
[INFO] [stdout]      |
[INFO] [stdout] 1255 |     let div = n / bits;
[INFO] [stdout]      |                 ^ no implementation for `usize / u32`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Div<u32>` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:2066:27
[INFO] [stdout]      |
[INFO] [stdout] 2066 |     let rs = Limb::BITS - s;
[INFO] [stdout]      |                           ^ expected `u32`, found `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot subtract `usize` from `u32`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.4.1/src/atof/algorithm/math.rs:2066:25
[INFO] [stdout]      |
[INFO] [stdout] 2066 |     let rs = Limb::BITS - s;
[INFO] [stdout]      |                         ^ no implementation for `u32 - usize`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `Sub<usize>` is not implemented for `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 27 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lexical-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4a9ee99cf79206810e999aa1a9dd211be8fd0b9cb1735e3a570d5f2de09b81b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9ee99cf79206810e999aa1a9dd211be8fd0b9cb1735e3a570d5f2de09b81b3", kill_on_drop: false }`
[INFO] [stdout] 4a9ee99cf79206810e999aa1a9dd211be8fd0b9cb1735e3a570d5f2de09b81b3