[INFO] updating cached repository madeso/librust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/madeso/librust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/madeso/librust" "work/ex/beta-1.38-1/sources/1.37.0/gh/madeso/librust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/madeso/librust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/madeso/librust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/madeso/librust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/madeso/librust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e296daf41400c60e07cc6e1bbece12a86874452
[INFO] sha for GitHub repo madeso/librust: 5e296daf41400c60e07cc6e1bbece12a86874452
[INFO] validating manifest of madeso/librust 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 madeso/librust 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 madeso/librust
[INFO] finished frobbing madeso/librust
[INFO] frobbed toml for madeso/librust written to work/ex/beta-1.38-1/sources/1.37.0/gh/madeso/librust/Cargo.toml
[INFO] started frobbing madeso/librust
[INFO] finished frobbing madeso/librust
[INFO] frobbed toml for madeso/librust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/madeso/librust/Cargo.toml
[INFO] crate madeso/librust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing madeso/librust 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/madeso/librust:/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] 06a504e8534f8ea2f8d26138518ddf3498da19609a796412a6c1ad640b73eea9
[INFO] running `"docker" "start" "-a" "06a504e8534f8ea2f8d26138518ddf3498da19609a796412a6c1ad640b73eea9"`
[INFO] [stderr]    Compiling librust v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/rng.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         for i in range(0,16) {
[INFO] [stderr]    |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/crc32.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for i in range(0, 256) {
[INFO] [stderr]    |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/crc32.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |             for _ in range(0, 8) {
[INFO] [stderr]    |                      ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `librust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "06a504e8534f8ea2f8d26138518ddf3498da19609a796412a6c1ad640b73eea9"`
[INFO] running `"docker" "rm" "-f" "06a504e8534f8ea2f8d26138518ddf3498da19609a796412a6c1ad640b73eea9"`
[INFO] [stdout] 06a504e8534f8ea2f8d26138518ddf3498da19609a796412a6c1ad640b73eea9