[INFO] updating cached repository johnfaucett/rs-libm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/johnfaucett/rs-libm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/johnfaucett/rs-libm" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/johnfaucett/rs-libm"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/johnfaucett/rs-libm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/johnfaucett/rs-libm" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/johnfaucett/rs-libm"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/johnfaucett/rs-libm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 294cfb90fd7f6d43ecb8ff947b9e8ef0e7ce4162
[INFO] sha for GitHub repo johnfaucett/rs-libm: 294cfb90fd7f6d43ecb8ff947b9e8ef0e7ce4162
[INFO] validating manifest of johnfaucett/rs-libm on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of johnfaucett/rs-libm on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing johnfaucett/rs-libm
[INFO] finished frobbing johnfaucett/rs-libm
[INFO] frobbed toml for johnfaucett/rs-libm written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/johnfaucett/rs-libm/Cargo.toml
[INFO] started frobbing johnfaucett/rs-libm
[INFO] finished frobbing johnfaucett/rs-libm
[INFO] frobbed toml for johnfaucett/rs-libm written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/johnfaucett/rs-libm/Cargo.toml
[INFO] crate johnfaucett/rs-libm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking johnfaucett/rs-libm against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-7/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/johnfaucett/rs-libm:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 995c79a0fad5c60ccfad9a60c13d6f8d92369b0d5eb72ddb7fa2a5f47625629f
[INFO] running `"docker" "start" "-a" "995c79a0fad5c60ccfad9a60c13d6f8d92369b0d5eb72ddb7fa2a5f47625629f"`
[INFO] [stderr]     Checking rng v0.1.0 (https://github.com/nathanfaucett/rs-rng.git#4d67269d)
[INFO] [stderr]     Checking pseudo_random v0.1.0 (https://github.com/nathanfaucett/rs-pseudo_random.git#d3701669)
[INFO] [stderr]     Checking libm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `exponent`
[INFO] [stderr]   --> src/ceil.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |   let exponent = ux >> 52 & 0x7ff;
[INFO] [stderr]    |       ^^^^^^^^ help: consider prefixing with an underscore: `_exponent`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]   --> src/ceil.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 |   let mut y: f64 = 0.0;
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exponent`
[INFO] [stderr]   --> src/ceil.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |   let exponent = ux >> 52 & 0x7ff;
[INFO] [stderr]    |       ^^^^^^^^ help: consider prefixing with an underscore: `_exponent`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]   --> src/ceil.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 |   let mut y: f64 = 0.0;
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `"docker" "inspect" "995c79a0fad5c60ccfad9a60c13d6f8d92369b0d5eb72ddb7fa2a5f47625629f"`
[INFO] running `"docker" "rm" "-f" "995c79a0fad5c60ccfad9a60c13d6f8d92369b0d5eb72ddb7fa2a5f47625629f"`
[INFO] [stdout] 995c79a0fad5c60ccfad9a60c13d6f8d92369b0d5eb72ddb7fa2a5f47625629f