[INFO] updating cached repository kapstok/Ambassade
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kapstok/Ambassade
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kapstok/Ambassade" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kapstok/Ambassade"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kapstok/Ambassade'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kapstok/Ambassade" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/kapstok/Ambassade"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/kapstok/Ambassade'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 693aeb50c53b4ff2d77147f071934d9313f7c6dc
[INFO] sha for GitHub repo kapstok/Ambassade: 693aeb50c53b4ff2d77147f071934d9313f7c6dc
[INFO] validating manifest of kapstok/Ambassade on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kapstok/Ambassade on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kapstok/Ambassade
[INFO] finished frobbing kapstok/Ambassade
[INFO] frobbed toml for kapstok/Ambassade written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/kapstok/Ambassade/Cargo.toml
[INFO] started frobbing kapstok/Ambassade
[INFO] finished frobbing kapstok/Ambassade
[INFO] frobbed toml for kapstok/Ambassade written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/kapstok/Ambassade/Cargo.toml
[INFO] crate kapstok/Ambassade already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kapstok/Ambassade against try#74092351c05ae61047b2be02024415546595e974 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-5/try#74092351c05ae61047b2be02024415546595e974:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/kapstok/Ambassade:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+74092351c05ae61047b2be02024415546595e974-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 123b6555cbeb77a04cc2449a133b5c7cc8b686511e08bfdb75aa3929254e4dc7
[INFO] running `"docker" "start" "-a" "123b6555cbeb77a04cc2449a133b5c7cc8b686511e08bfdb75aa3929254e4dc7"`
[INFO] [stderr]    Compiling curl-sys v0.4.16
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking rustyline v2.1.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking git2 v0.8.0
[INFO] [stderr]    Compiling ambassade-debug v0.2.0
[INFO] [stderr]     Checking ambassade v1.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/backend/project.rs:44:15
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn exe<I>(args: &mut I) -> Result<String, String> where I: Iterator<Item=String> {
[INFO] [stderr]    |               ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/backend/project.rs:44:15
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn exe<I>(args: &mut I) -> Result<String, String> where I: Iterator<Item=String> {
[INFO] [stderr]    |               ^^^^ help: consider prefixing with an underscore: `_args`
[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/backend/dep.rs:48:20
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backend/dep.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backend/dep.rs:62:20
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backend/dep.rs:48:20
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backend/dep.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/backend/dep.rs:62:20
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 Ok(mut result) => {
[INFO] [stderr]    |                    ----^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.55s
[INFO] running `"docker" "inspect" "123b6555cbeb77a04cc2449a133b5c7cc8b686511e08bfdb75aa3929254e4dc7"`
[INFO] running `"docker" "rm" "-f" "123b6555cbeb77a04cc2449a133b5c7cc8b686511e08bfdb75aa3929254e4dc7"`
[INFO] [stdout] 123b6555cbeb77a04cc2449a133b5c7cc8b686511e08bfdb75aa3929254e4dc7