[INFO] crate rust-base58 0.0.4 is already in cache
[INFO] testing rust-base58-0.0.4 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rust-base58 0.0.4 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate rust-base58 0.0.4 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust-base58 0.0.4
[INFO] finished tweaking crates.io crate rust-base58 0.0.4
[INFO] tweaked toml for crates.io crate rust-base58 0.0.4 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 20626014f66fa7a3d48a79b737c421ec197e7aa0fc3740b114d4685fceebac27
[INFO] running `"docker" "start" "-a" "20626014f66fa7a3d48a79b737c421ec197e7aa0fc3740b114d4685fceebac27"`
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rust-base58 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: static item is never used: `FLICKR_ALPHA`
[INFO] [stderr]   --> src/base58.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / static FLICKR_ALPHA: &'static[u8] = b"123456789\
[INFO] [stderr] 13 | |                                       abcdefghijkmnopqrstuvwxyz\
[INFO] [stderr] 14 | |                                       ABCDEFGHJKLMNPQRSTUVWXYZ";
[INFO] [stderr]    | |________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `"docker" "inspect" "20626014f66fa7a3d48a79b737c421ec197e7aa0fc3740b114d4685fceebac27"`
[INFO] running `"docker" "rm" "-f" "20626014f66fa7a3d48a79b737c421ec197e7aa0fc3740b114d4685fceebac27"`
[INFO] [stdout] 20626014f66fa7a3d48a79b737c421ec197e7aa0fc3740b114d4685fceebac27
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 99f8a1124cc51d76937a8f3a5ac4cf37e4516f6d74b54122dcf6222c86ac9149
[INFO] running `"docker" "start" "-a" "99f8a1124cc51d76937a8f3a5ac4cf37e4516f6d74b54122dcf6222c86ac9149"`
[INFO] [stderr]    Compiling rust-base58 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `gen_iter` found for type `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]    --> src/base58.rs:201:34
[INFO] [stderr]     |
[INFO] [stderr] 201 |             let v = thread_rng().gen_iter::<u8>().take(times)
[INFO] [stderr]     |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[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 `rust-base58`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "99f8a1124cc51d76937a8f3a5ac4cf37e4516f6d74b54122dcf6222c86ac9149"`
[INFO] running `"docker" "rm" "-f" "99f8a1124cc51d76937a8f3a5ac4cf37e4516f6d74b54122dcf6222c86ac9149"`
[INFO] [stdout] 99f8a1124cc51d76937a8f3a5ac4cf37e4516f6d74b54122dcf6222c86ac9149