[INFO] updating cached repository tasdomas/sc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tasdomas/sc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tasdomas/sc" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/tasdomas/sc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/tasdomas/sc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tasdomas/sc" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/tasdomas/sc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/tasdomas/sc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f75d0e8d5a9d2f5022be574a5e32a4888abe15e
[INFO] sha for GitHub repo tasdomas/sc: 9f75d0e8d5a9d2f5022be574a5e32a4888abe15e
[INFO] validating manifest of tasdomas/sc 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 tasdomas/sc 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 tasdomas/sc
[INFO] finished frobbing tasdomas/sc
[INFO] frobbed toml for tasdomas/sc written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/tasdomas/sc/Cargo.toml
[INFO] started frobbing tasdomas/sc
[INFO] finished frobbing tasdomas/sc
[INFO] frobbed toml for tasdomas/sc written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/tasdomas/sc/Cargo.toml
[INFO] crate tasdomas/sc 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tasdomas/sc against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/tasdomas/sc:/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] 161b975d87e204841a5e193302e4faca950358cb3d8d800bb6a0627b28d7a998
[INFO] running `"docker" "start" "-a" "161b975d87e204841a5e193302e4faca950358cb3d8d800bb6a0627b28d7a998"`
[INFO] [stderr]     Checking sc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]  --> src/ops.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut a :f32 = 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: value assigned to `b` is never read
[INFO] [stderr]   --> src/ops.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut b :f32 = 0.0;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `S` should have a snake case name
[INFO] [stderr]  --> src/stack.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     S: Option<Box<StackElement<T>>>,
[INFO] [stderr]   |     ^ help: convert the identifier to snake case: `s`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `Sum` should have a snake case name
[INFO] [stderr]  --> src/ops.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn Sum(mut s: Stack<f32>) -> Stack<f32> {
[INFO] [stderr]   |        ^^^ help: convert the identifier to snake case: `sum`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]  --> src/ops.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut a :f32 = 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: value assigned to `b` is never read
[INFO] [stderr]   --> src/ops.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut b :f32 = 0.0;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `S` should have a snake case name
[INFO] [stderr]  --> src/stack.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     S: Option<Box<StackElement<T>>>,
[INFO] [stderr]   |     ^ help: convert the identifier to snake case: `s`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `Sum` should have a snake case name
[INFO] [stderr]  --> src/ops.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn Sum(mut s: Stack<f32>) -> Stack<f32> {
[INFO] [stderr]   |        ^^^ help: convert the identifier to snake case: `sum`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "161b975d87e204841a5e193302e4faca950358cb3d8d800bb6a0627b28d7a998"`
[INFO] running `"docker" "rm" "-f" "161b975d87e204841a5e193302e4faca950358cb3d8d800bb6a0627b28d7a998"`
[INFO] [stdout] 161b975d87e204841a5e193302e4faca950358cb3d8d800bb6a0627b28d7a998