[INFO] cloning repository https://github.com/jolutz/random-karma
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jolutz/random-karma" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjolutz%2Frandom-karma", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b6bf1eba204d101f24545a7de4964ccb709a9e4
[INFO] testing jolutz/random-karma against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjolutz%2Frandom-karma" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/jolutz/random-karma on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jolutz/random-karma 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] error[E0015]: cannot call non-const function `available_parallelism` in constants
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         std::thread::available_parallelism()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: function `available_parallelism` is not const
[INFO] [stdout]   --> /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/thread/functions.rs:690:0
[INFO] [stdout]    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: cannot call conditionally-const method `Result::<NonZero<usize>, std::io::Error>::map::<usize, {closure@src/main.rs:52:18: 52:21}>` in constants
[INFO] [stdout]   --> src/main.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |             .map(|n| n.get())
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Result::<T, E>::map` is not yet stable as a const fn
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         std::thread::available_parallelism()
[INFO] [stdout] 52 | |             .map(|n| n.get())
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: cannot call conditionally-const method `Result::<usize, std::io::Error>::unwrap_or` in constants
[INFO] [stdout]   --> src/main.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |             .unwrap_or(4)
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Result::<T, E>::unwrap_or` is not yet stable as a const fn
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         std::thread::available_parallelism()
[INFO] [stdout] 52 | |             .map(|n| n.get())
[INFO] [stdout] 53 | |             .unwrap_or(4)
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random_karma` (bin "random_karma") due to 5 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0015, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0015`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d487871ef47a9da31cf2affa76cf1682bed3b0097f89215a4a5c8d383fad89f2", kill_on_drop: false }`
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[INFO] [stdout] d487871ef47a9da31cf2affa76cf1682bed3b0097f89215a4a5c8d383fad89f2
