[INFO] fetching crate currency 0.4.0...
[INFO] checking currency-0.4.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate currency 0.4.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate currency 0.4.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate currency 0.4.0
[INFO] finished tweaking crates.io crate currency 0.4.0
[INFO] tweaked toml for crates.io crate currency 0.4.0 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 030bf61f87675c2025967e8086e01ccf96fe4b3214d7401a81169d4df83ce341
[INFO] running `Command { std: "docker" "start" "-a" "030bf61f87675c2025967e8086e01ccf96fe4b3214d7401a81169d4df83ce341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "030bf61f87675c2025967e8086e01ccf96fe4b3214d7401a81169d4df83ce341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030bf61f87675c2025967e8086e01ccf96fe4b3214d7401a81169d4df83ce341", kill_on_drop: false }`
[INFO] [stdout] 030bf61f87675c2025967e8086e01ccf96fe4b3214d7401a81169d4df83ce341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b02ce3c51d1270f000f33883747a1d6c82f7a802f406a267af9ddd212f2ac0ba
[INFO] running `Command { std: "docker" "start" "-a" "b02ce3c51d1270f000f33883747a1d6c82f7a802f406a267af9ddd212f2ac0ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking currency v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BigUint` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:85:27
[INFO] [stdout]    |
[INFO] [stdout] 46 | use num::bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]    |                           ------- the item `BigUint` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 85 |         use num::bigint::{BigUint, Sign};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sign` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:85:36
[INFO] [stdout]    |
[INFO] [stdout] 46 | use num::bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]    |                                    ---- the item `Sign` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 85 |         use num::bigint::{BigUint, Sign};
[INFO] [stdout]    |                                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BigUint` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:85:27
[INFO] [stdout]    |
[INFO] [stdout] 46 | use num::bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]    |                           ------- the item `BigUint` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 85 |         use num::bigint::{BigUint, Sign};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sign` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:85:36
[INFO] [stdout]    |
[INFO] [stdout] 46 | use num::bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]    |                                    ---- the item `Sign` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 85 |         use num::bigint::{BigUint, Sign};
[INFO] [stdout]    |                                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]    --> src/lib.rs:752:13
[INFO] [stdout]     |
[INFO] [stdout] 752 |         use std::str::FromStr;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `Command { std: "docker" "inspect" "b02ce3c51d1270f000f33883747a1d6c82f7a802f406a267af9ddd212f2ac0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02ce3c51d1270f000f33883747a1d6c82f7a802f406a267af9ddd212f2ac0ba", kill_on_drop: false }`
[INFO] [stdout] b02ce3c51d1270f000f33883747a1d6c82f7a802f406a267af9ddd212f2ac0ba
