[INFO] updating cached repository wh317706/rust_cp_snippets
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wh317706/rust_cp_snippets
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wh317706/rust_cp_snippets" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/wh317706/rust_cp_snippets"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/wh317706/rust_cp_snippets'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wh317706/rust_cp_snippets" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/wh317706/rust_cp_snippets"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/wh317706/rust_cp_snippets'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e990f906e866ef8077f9e5349d1e75c0fe9a844
[INFO] sha for GitHub repo wh317706/rust_cp_snippets: 7e990f906e866ef8077f9e5349d1e75c0fe9a844
[INFO] validating manifest of wh317706/rust_cp_snippets 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 wh317706/rust_cp_snippets 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 wh317706/rust_cp_snippets
[INFO] finished frobbing wh317706/rust_cp_snippets
[INFO] frobbed toml for wh317706/rust_cp_snippets written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/wh317706/rust_cp_snippets/Cargo.toml
[INFO] started frobbing wh317706/rust_cp_snippets
[INFO] finished frobbing wh317706/rust_cp_snippets
[INFO] frobbed toml for wh317706/rust_cp_snippets written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/wh317706/rust_cp_snippets/Cargo.toml
[INFO] crate wh317706/rust_cp_snippets 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 wh317706/rust_cp_snippets against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/wh317706/rust_cp_snippets:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] db4d8098305a690f2d94a9785a9b38c192f9a73be68d33e7b269a80f3f447e97
[INFO] running `"docker" "start" "-a" "db4d8098305a690f2d94a9785a9b38c192f9a73be68d33e7b269a80f3f447e97"`
[INFO] [stderr]    Compiling cargo-snippet v0.2.6
[INFO] [stderr]     Checking rust_cp_snippets v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]    --> src/template.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |         let mut next = move || -> String{
[INFO] [stderr]     |                 ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] ...
[INFO] [stderr] 148 |     input!{}
[INFO] [stderr]     |     -------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/template.rs:25:13
[INFO] [stderr]     |
[INFO] [stderr] 25  |         let mut next = move || -> String{
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 148 |     input!{}
[INFO] [stderr]     |     -------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]    --> src/template.rs:25:17
[INFO] [stderr]     |
[INFO] [stderr] 25  |         let mut next = move || -> String{
[INFO] [stderr]     |                 ^^^^ help: consider prefixing with an underscore: `_next`
[INFO] [stderr] ...
[INFO] [stderr] 148 |     input!{}
[INFO] [stderr]     |     -------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/template.rs:25:13
[INFO] [stderr]     |
[INFO] [stderr] 25  |         let mut next = move || -> String{
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 148 |     input!{}
[INFO] [stderr]     |     -------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `"docker" "inspect" "db4d8098305a690f2d94a9785a9b38c192f9a73be68d33e7b269a80f3f447e97"`
[INFO] running `"docker" "rm" "-f" "db4d8098305a690f2d94a9785a9b38c192f9a73be68d33e7b269a80f3f447e97"`
[INFO] [stdout] db4d8098305a690f2d94a9785a9b38c192f9a73be68d33e7b269a80f3f447e97