[INFO] updating cached repository asdetrefle/da_vinci_code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asdetrefle/da_vinci_code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asdetrefle/da_vinci_code" "work/ex/beta-1.38-1/sources/1.37.0/gh/asdetrefle/da_vinci_code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/asdetrefle/da_vinci_code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asdetrefle/da_vinci_code" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdetrefle/da_vinci_code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdetrefle/da_vinci_code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b854ba763b40df053d575e79fac3f2d7e3baf6e3
[INFO] sha for GitHub repo asdetrefle/da_vinci_code: b854ba763b40df053d575e79fac3f2d7e3baf6e3
[INFO] validating manifest of asdetrefle/da_vinci_code on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of asdetrefle/da_vinci_code on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing asdetrefle/da_vinci_code
[INFO] finished frobbing asdetrefle/da_vinci_code
[INFO] frobbed toml for asdetrefle/da_vinci_code written to work/ex/beta-1.38-1/sources/1.37.0/gh/asdetrefle/da_vinci_code/Cargo.toml
[INFO] started frobbing asdetrefle/da_vinci_code
[INFO] finished frobbing asdetrefle/da_vinci_code
[INFO] frobbed toml for asdetrefle/da_vinci_code written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asdetrefle/da_vinci_code/Cargo.toml
[INFO] crate asdetrefle/da_vinci_code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/asdetrefle/da_vinci_code/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing asdetrefle/da_vinci_code against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/asdetrefle/da_vinci_code:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 00e740d77ada3e58a4fcd6728871a09a4cc63b7373b7fdd0e91931f56173da41
[INFO] running `"docker" "start" "-a" "00e740d77ada3e58a4fcd6728871a09a4cc63b7373b7fdd0e91931f56173da41"`
[INFO] [stderr]    Compiling da_vinci_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `shuffle` found for type `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]    --> src/main.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |     rng.shuffle(&mut cards);
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `da_vinci_code`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "00e740d77ada3e58a4fcd6728871a09a4cc63b7373b7fdd0e91931f56173da41"`
[INFO] running `"docker" "rm" "-f" "00e740d77ada3e58a4fcd6728871a09a4cc63b7373b7fdd0e91931f56173da41"`
[INFO] [stdout] 00e740d77ada3e58a4fcd6728871a09a4cc63b7373b7fdd0e91931f56173da41