[INFO] updating cached repository Ryan1729/prop-proc-prog-puzz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ryan1729/prop-proc-prog-puzz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/prop-proc-prog-puzz" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Ryan1729/prop-proc-prog-puzz"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Ryan1729/prop-proc-prog-puzz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/prop-proc-prog-puzz" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Ryan1729/prop-proc-prog-puzz"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Ryan1729/prop-proc-prog-puzz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cde2a1afb4ca6edbf59d8ad7e518d2b11b3c7304
[INFO] sha for GitHub repo Ryan1729/prop-proc-prog-puzz: cde2a1afb4ca6edbf59d8ad7e518d2b11b3c7304
[INFO] validating manifest of Ryan1729/prop-proc-prog-puzz on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Ryan1729/prop-proc-prog-puzz on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Ryan1729/prop-proc-prog-puzz
[INFO] finished frobbing Ryan1729/prop-proc-prog-puzz
[INFO] frobbed toml for Ryan1729/prop-proc-prog-puzz written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Ryan1729/prop-proc-prog-puzz/Cargo.toml
[INFO] started frobbing Ryan1729/prop-proc-prog-puzz
[INFO] finished frobbing Ryan1729/prop-proc-prog-puzz
[INFO] frobbed toml for Ryan1729/prop-proc-prog-puzz written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Ryan1729/prop-proc-prog-puzz/Cargo.toml
[INFO] crate Ryan1729/prop-proc-prog-puzz has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building Ryan1729/prop-proc-prog-puzz against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Ryan1729/prop-proc-prog-puzz:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] a9cc7b0f172d7205bd7d0c589d0f0595e52b0fee03f95589655ccf6e682d35cd
[INFO] running `"docker" "start" "-a" "a9cc7b0f172d7205bd7d0c589d0f0595e52b0fee03f95589655ccf6e682d35cd"`
[INFO] [stderr]    Compiling prop_proc_prog_puzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |         example: &|mut rng| match rng.gen::<u8>() % 3 {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "a9cc7b0f172d7205bd7d0c589d0f0595e52b0fee03f95589655ccf6e682d35cd"`
[INFO] running `"docker" "rm" "-f" "a9cc7b0f172d7205bd7d0c589d0f0595e52b0fee03f95589655ccf6e682d35cd"`
[INFO] [stdout] a9cc7b0f172d7205bd7d0c589d0f0595e52b0fee03f95589655ccf6e682d35cd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Ryan1729/prop-proc-prog-puzz:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1e1597f31a1ed2916d34b496e133844f15d9dd3c0c06516b5e0747a469d34115
[INFO] running `"docker" "start" "-a" "1e1597f31a1ed2916d34b496e133844f15d9dd3c0c06516b5e0747a469d34115"`
[INFO] [stderr]    Compiling quickcheck v0.3.2
[INFO] [stderr]    Compiling prop_proc_prog_puzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |         example: &|mut rng| match rng.gen::<u8>() % 3 {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `"docker" "inspect" "1e1597f31a1ed2916d34b496e133844f15d9dd3c0c06516b5e0747a469d34115"`
[INFO] running `"docker" "rm" "-f" "1e1597f31a1ed2916d34b496e133844f15d9dd3c0c06516b5e0747a469d34115"`
[INFO] [stdout] 1e1597f31a1ed2916d34b496e133844f15d9dd3c0c06516b5e0747a469d34115