[INFO] fetching crate float_fast_print 0.1.2...
[INFO] checking float_fast_print-0.1.2 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate float_fast_print 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate float_fast_print 0.1.2
[INFO] finished tweaking crates.io crate float_fast_print 0.1.2
[INFO] tweaked toml for crates.io crate float_fast_print 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate float_fast_print 0.1.2 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0758e26d772df99e93637b0760b92030687d8cc3e01571386f9ad652bfeb8d70
[INFO] running `Command { std: "docker" "start" "-a" "0758e26d772df99e93637b0760b92030687d8cc3e01571386f9ad652bfeb8d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0758e26d772df99e93637b0760b92030687d8cc3e01571386f9ad652bfeb8d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0758e26d772df99e93637b0760b92030687d8cc3e01571386f9ad652bfeb8d70", kill_on_drop: false }`
[INFO] [stdout] 0758e26d772df99e93637b0760b92030687d8cc3e01571386f9ad652bfeb8d70
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0daca166c835853e608a0206d7a12ac415d3af94cac59aa1674b7180432a2e7c
[INFO] running `Command { std: "docker" "start" "-a" "0daca166c835853e608a0206d7a12ac415d3af94cac59aa1674b7180432a2e7c", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking float_fast_print v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "cargo-clippy", allow(unreadable_literal))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/lib.rs:342:17
[INFO] [stdout]     |
[INFO] [stdout] 333 |             vp /= 10;
[INFO] [stdout]     |             -------- `vp` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 342 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/lib.rs:577:17
[INFO] [stdout]     |
[INFO] [stdout] 567 |             vp /= 10;
[INFO] [stdout]     |             -------- `vp` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 577 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "cargo-clippy", allow(unreadable_literal))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/lib.rs:342:17
[INFO] [stdout]     |
[INFO] [stdout] 333 |             vp /= 10;
[INFO] [stdout]     |             -------- `vp` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 342 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/lib.rs:577:17
[INFO] [stdout]     |
[INFO] [stdout] 567 |             vp /= 10;
[INFO] [stdout]     |             -------- `vp` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 577 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `test` is declared but not used
[INFO] [stdout]  --> tests/exhaustive.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/benchmarks.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         write!(&mut buffer, "{:?}", x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let _ = write!(&mut buffer, "{:?}", x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/benchmarks.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         write!(&mut buffer, "{}", x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = write!(&mut buffer, "{}", x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/benchmarks.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         write!(&mut buffer, "{:?}", x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = write!(&mut buffer, "{:?}", x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/benchmarks.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         write!(&mut buffer, "{}", x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let _ = write!(&mut buffer, "{}", x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "0daca166c835853e608a0206d7a12ac415d3af94cac59aa1674b7180432a2e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0daca166c835853e608a0206d7a12ac415d3af94cac59aa1674b7180432a2e7c", kill_on_drop: false }`
[INFO] [stdout] 0daca166c835853e608a0206d7a12ac415d3af94cac59aa1674b7180432a2e7c
