Nov 30 22:54:34.230 INFO checking float_fast_print-0.1.2 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323 Nov 30 22:54:34.230 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Nov 30 22:54:34.788 INFO [stdout] 2e6c02b9db25704341ab38d9780ed357f4d0662ea363ff92ac6e28f163613bf4 Nov 30 22:54:34.789 INFO running `"docker" "start" "-a" "2e6c02b9db25704341ab38d9780ed357f4d0662ea363ff92ac6e28f163613bf4"` Nov 30 22:54:35.652 INFO [stderr] usermod: no changes Nov 30 22:54:35.716 INFO [stderr] Checking float_fast_print v0.1.2 (/source) Nov 30 22:54:37.664 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 22:54:37.664 INFO [stderr] --> tests/benchmarks.rs:17:9 Nov 30 22:54:37.664 INFO [stderr] | Nov 30 22:54:37.664 INFO [stderr] 17 | write!(&mut buffer, "{:?}", x); Nov 30 22:54:37.664 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 22:54:37.664 INFO [stderr] | Nov 30 22:54:37.664 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 30 22:54:37.664 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 22:54:37.664 INFO [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) Nov 30 22:54:37.664 INFO [stderr] Nov 30 22:54:37.664 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 22:54:37.665 INFO [stderr] --> tests/benchmarks.rs:28:9 Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] 28 | write!(&mut buffer, "{}", x); Nov 30 22:54:37.665 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 22:54:37.665 INFO [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) Nov 30 22:54:37.665 INFO [stderr] Nov 30 22:54:37.665 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 22:54:37.665 INFO [stderr] --> tests/benchmarks.rs:39:9 Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] 39 | write!(&mut buffer, "{:?}", x); Nov 30 22:54:37.665 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 22:54:37.665 INFO [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) Nov 30 22:54:37.665 INFO [stderr] Nov 30 22:54:37.665 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 30 22:54:37.665 INFO [stderr] --> tests/benchmarks.rs:50:9 Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] 50 | write!(&mut buffer, "{}", x); Nov 30 22:54:37.665 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 30 22:54:37.665 INFO [stderr] | Nov 30 22:54:37.665 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 30 22:54:37.665 INFO [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) Nov 30 22:54:37.665 INFO [stderr] Nov 30 22:54:37.981 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.31s Nov 30 22:54:37.988 INFO [stderr] su: No module specific data is present Nov 30 22:54:38.644 INFO running `"docker" "inspect" "2e6c02b9db25704341ab38d9780ed357f4d0662ea363ff92ac6e28f163613bf4"` Nov 30 22:54:38.944 INFO running `"docker" "rm" "-f" "2e6c02b9db25704341ab38d9780ed357f4d0662ea363ff92ac6e28f163613bf4"` Nov 30 22:54:39.314 INFO [stdout] 2e6c02b9db25704341ab38d9780ed357f4d0662ea363ff92ac6e28f163613bf4