[INFO] fetching crate probability 0.20.3...
[INFO] checking probability-0.20.3 against 1.95.0 for pr-155915
[INFO] extracting crate probability 0.20.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate probability 0.20.3
[INFO] finished tweaking crates.io crate probability 0.20.3
[INFO] tweaked toml for crates.io crate probability 0.20.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate probability 0.20.3 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 crates.io crate probability 0.20.3 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 }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random v0.13.2
[INFO] [stderr]   Downloaded assert v0.7.4
[INFO] [stderr]   Downloaded special v0.10.1
[INFO] [stderr]   Downloaded libm v0.2.5
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 }`
[INFO] [stdout] 2e5607b8d5d3bb98576814d13bc474c7ad8162d763559d0facbddeb0c0b545ff
[INFO] running `Command { std: "docker" "start" "-a" "2e5607b8d5d3bb98576814d13bc474c7ad8162d763559d0facbddeb0c0b545ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e5607b8d5d3bb98576814d13bc474c7ad8162d763559d0facbddeb0c0b545ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e5607b8d5d3bb98576814d13bc474c7ad8162d763559d0facbddeb0c0b545ff", kill_on_drop: false }`
[INFO] [stdout] 2e5607b8d5d3bb98576814d13bc474c7ad8162d763559d0facbddeb0c0b545ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a480a59722f3b8e8127e7a528b417868562a051dc140c198391663ac26d445cd
[INFO] running `Command { std: "docker" "start" "-a" "a480a59722f3b8e8127e7a528b417868562a051dc140c198391663ac26d445cd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking random v0.13.2
[INFO] [stderr]     Checking assert v0.7.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking special v0.10.1
[INFO] [stderr]     Checking probability v0.20.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `probability` (bench "lib") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/distribution/gamma.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |             norm: k.gamma() * theta.powf(k),
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `gamma(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/distribution/gamma.rs:71:43
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.k + self.theta.ln() + self.k.ln_gamma().0 + (1.0 - self.k) * self.k.digamma()
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `ln_gamma(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a480a59722f3b8e8127e7a528b417868562a051dc140c198391663ac26d445cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a480a59722f3b8e8127e7a528b417868562a051dc140c198391663ac26d445cd", kill_on_drop: false }`
[INFO] [stdout] a480a59722f3b8e8127e7a528b417868562a051dc140c198391663ac26d445cd
