[INFO] updating cached repository jeremyletang/trueskill-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeremyletang/trueskill-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeremyletang/trueskill-rs" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jeremyletang/trueskill-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jeremyletang/trueskill-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeremyletang/trueskill-rs" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jeremyletang/trueskill-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jeremyletang/trueskill-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ef44f2c5695636836303c7cb1fdede1ac7804cd
[INFO] sha for GitHub repo jeremyletang/trueskill-rs: 9ef44f2c5695636836303c7cb1fdede1ac7804cd
[INFO] validating manifest of jeremyletang/trueskill-rs on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jeremyletang/trueskill-rs on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jeremyletang/trueskill-rs
[INFO] finished frobbing jeremyletang/trueskill-rs
[INFO] frobbed toml for jeremyletang/trueskill-rs written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jeremyletang/trueskill-rs/Cargo.toml
[INFO] started frobbing jeremyletang/trueskill-rs
[INFO] finished frobbing jeremyletang/trueskill-rs
[INFO] frobbed toml for jeremyletang/trueskill-rs written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jeremyletang/trueskill-rs/Cargo.toml
[INFO] crate jeremyletang/trueskill-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jeremyletang/trueskill-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jeremyletang/trueskill-rs against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-3/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jeremyletang/trueskill-rs:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ccfc649cd5a9f5c0b5e34e49aac6124247799d03348cad7c40f1710af1e888e0
[INFO] running `"docker" "start" "-a" "ccfc649cd5a9f5c0b5e34e49aac6124247799d03348cad7c40f1710af1e888e0"`
[INFO] [stderr]     Checking trueskill v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `complementary_error`
[INFO] [stderr]  --> src/math.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn complementary_error<F: Float + One + Zero>(x: F) -> F {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cumulative_distribution`
[INFO] [stderr]   --> src/math.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn cumulative_distribution<F: Float + One + Zero>(x: F, mu: Option<F>, sigma: Option<F>) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `probability_density`
[INFO] [stderr]   --> src/math.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn probability_density<F: Float + One + Zero>(x: F, mu: Option<F>, sigma: Option<F>) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `complementary_error_inv`
[INFO] [stderr]   --> src/math.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn complementary_error_inv<F: Float + One + Zero>(mut y: F) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cumulative_distribution_inv`
[INFO] [stderr]   --> src/math.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn cumulative_distribution_inv<F: Float + One + Zero>(x: F, mu: Option<F>, sigma: Option<F>) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `complementary_error_inv`
[INFO] [stderr]   --> src/math.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn complementary_error_inv<F: Float + One + Zero>(mut y: F) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cumulative_distribution_inv`
[INFO] [stderr]   --> src/math.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn cumulative_distribution_inv<F: Float + One + Zero>(x: F, mu: Option<F>, sigma: Option<F>) -> F {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "ccfc649cd5a9f5c0b5e34e49aac6124247799d03348cad7c40f1710af1e888e0"`
[INFO] running `"docker" "rm" "-f" "ccfc649cd5a9f5c0b5e34e49aac6124247799d03348cad7c40f1710af1e888e0"`
[INFO] [stdout] ccfc649cd5a9f5c0b5e34e49aac6124247799d03348cad7c40f1710af1e888e0