[INFO] fetching crate rust-base58 0.0.4...
[INFO] testing rust-base58-0.0.4 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust-base58 0.0.4 into /workspace/builds/worker-6-tc2/source
[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 /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-base58 0.0.4 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a341e7d319aea57931bf53e7d0fa5bd88f0c30aa1a606b774f3c419371cb26c5
[INFO] running `Command { std: "docker" "start" "-a" "a341e7d319aea57931bf53e7d0fa5bd88f0c30aa1a606b774f3c419371cb26c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a341e7d319aea57931bf53e7d0fa5bd88f0c30aa1a606b774f3c419371cb26c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a341e7d319aea57931bf53e7d0fa5bd88f0c30aa1a606b774f3c419371cb26c5", kill_on_drop: false }`
[INFO] [stdout] a341e7d319aea57931bf53e7d0fa5bd88f0c30aa1a606b774f3c419371cb26c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb242e165bedbba2d02b5a266046646d4b9787bc0132d464a2e19f0201c5530d
[INFO] running `Command { std: "docker" "start" "-a" "bb242e165bedbba2d02b5a266046646d4b9787bc0132d464a2e19f0201c5530d", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling rust-base58 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static `FLICKR_ALPHA` is never used
[INFO] [stdout]   --> src/base58.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | static FLICKR_ALPHA: &'static[u8] = b"123456789\
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "bb242e165bedbba2d02b5a266046646d4b9787bc0132d464a2e19f0201c5530d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb242e165bedbba2d02b5a266046646d4b9787bc0132d464a2e19f0201c5530d", kill_on_drop: false }`
[INFO] [stdout] bb242e165bedbba2d02b5a266046646d4b9787bc0132d464a2e19f0201c5530d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82b521f1d4a1acdb3c99e692929c2e32752f2b9c2a16c76ee193cc9602c503ca
[INFO] running `Command { std: "docker" "start" "-a" "82b521f1d4a1acdb3c99e692929c2e32752f2b9c2a16c76ee193cc9602c503ca", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling rand_core v0.10.1
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stdout] warning: static `FLICKR_ALPHA` is never used
[INFO] [stdout]   --> src/base58.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | static FLICKR_ALPHA: &'static[u8] = b"123456789\
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chacha20 v0.10.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rand v0.10.1
[INFO] [stderr]    Compiling rust-base58 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand::thread_rng`
[INFO] [stdout]    --> src/base58.rs:197:20
[INFO] [stdout]     |
[INFO] [stdout] 197 |         use rand::{thread_rng, Rng};
[INFO] [stdout]     |                    ^^^^^^^^^^ no `thread_rng` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]    --> src/base58.rs:197:32
[INFO] [stdout]     |
[INFO] [stdout] 197 |         use rand::{thread_rng, Rng};
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-base58` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "82b521f1d4a1acdb3c99e692929c2e32752f2b9c2a16c76ee193cc9602c503ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b521f1d4a1acdb3c99e692929c2e32752f2b9c2a16c76ee193cc9602c503ca", kill_on_drop: false }`
[INFO] [stdout] 82b521f1d4a1acdb3c99e692929c2e32752f2b9c2a16c76ee193cc9602c503ca
