[INFO] crate rust-base58 0.0.4 is already in cache [INFO] extracting crate rust-base58 0.0.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/rust-base58/0.0.4 [INFO] extracting crate rust-base58 0.0.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust-base58/0.0.4 [INFO] validating manifest of rust-base58-0.0.4 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 rust-base58-0.0.4 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 rust-base58-0.0.4 [INFO] finished frobbing rust-base58-0.0.4 [INFO] frobbed toml for rust-base58-0.0.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rust-base58/0.0.4/Cargo.toml [INFO] started frobbing rust-base58-0.0.4 [INFO] finished frobbing rust-base58-0.0.4 [INFO] frobbed toml for rust-base58-0.0.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust-base58/0.0.4/Cargo.toml [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 rust-base58-0.0.4 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rust-base58/0.0.4:/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] 0a9bb3b97d189567877f717472dd9572eda080d05f046e9f2703490c42bd8691 [INFO] running `"docker" "start" "-a" "0a9bb3b97d189567877f717472dd9572eda080d05f046e9f2703490c42bd8691"` [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling rust-base58 v0.0.4 (/opt/crater/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 11.25s [INFO] running `"docker" "inspect" "0a9bb3b97d189567877f717472dd9572eda080d05f046e9f2703490c42bd8691"` [INFO] running `"docker" "rm" "-f" "0a9bb3b97d189567877f717472dd9572eda080d05f046e9f2703490c42bd8691"` [INFO] [stdout] 0a9bb3b97d189567877f717472dd9572eda080d05f046e9f2703490c42bd8691 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rust-base58/0.0.4:/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" "test" "--frozen" "--no-run"` [INFO] [stdout] 7aae9d303697ddcfb6bc6b5c62233073b4566a9dcc3bb1b375dd5719424cc2b5 [INFO] running `"docker" "start" "-a" "7aae9d303697ddcfb6bc6b5c62233073b4566a9dcc3bb1b375dd5719424cc2b5"` [INFO] [stderr] Compiling getrandom v0.1.10 [INFO] [stderr] Compiling rand_core v0.5.0 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling rust-base58 v0.0.4 (/opt/crater/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::().take(times) [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 `rust-base58`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "7aae9d303697ddcfb6bc6b5c62233073b4566a9dcc3bb1b375dd5719424cc2b5"` [INFO] running `"docker" "rm" "-f" "7aae9d303697ddcfb6bc6b5c62233073b4566a9dcc3bb1b375dd5719424cc2b5"` [INFO] [stdout] 7aae9d303697ddcfb6bc6b5c62233073b4566a9dcc3bb1b375dd5719424cc2b5