[INFO] crate numrepr 0.1.0 is already in cache
[INFO] extracting crate numrepr 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/numrepr/0.1.0
[INFO] extracting crate numrepr 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/numrepr/0.1.0
[INFO] validating manifest of numrepr-0.1.0 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 numrepr-0.1.0 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 numrepr-0.1.0
[INFO] finished frobbing numrepr-0.1.0
[INFO] frobbed toml for numrepr-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/numrepr/0.1.0/Cargo.toml
[INFO] started frobbing numrepr-0.1.0
[INFO] finished frobbing numrepr-0.1.0
[INFO] frobbed toml for numrepr-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/numrepr/0.1.0/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 numrepr-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/numrepr/0.1.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e27865f346287c5e8ba7545c5b4196cb65e178ae452f45cee0b0755169655806
[INFO] running `"docker" "start" "-a" "e27865f346287c5e8ba7545c5b4196cb65e178ae452f45cee0b0755169655806"`
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling numrepr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'failure::core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/main.rs:117:11
[INFO] [stderr]     |
[INFO] [stderr] 117 |         s.trim_left_matches(self.prefix())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `"docker" "inspect" "e27865f346287c5e8ba7545c5b4196cb65e178ae452f45cee0b0755169655806"`
[INFO] running `"docker" "rm" "-f" "e27865f346287c5e8ba7545c5b4196cb65e178ae452f45cee0b0755169655806"`
[INFO] [stdout] e27865f346287c5e8ba7545c5b4196cb65e178ae452f45cee0b0755169655806
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/numrepr/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d5f3358970688c69866c3e573b692bcac995ac5e30e4d65dd90c02e865579330
[INFO] running `"docker" "start" "-a" "d5f3358970688c69866c3e573b692bcac995ac5e30e4d65dd90c02e865579330"`
[INFO] [stderr]    Compiling numrepr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'failure::core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/main.rs:117:11
[INFO] [stderr]     |
[INFO] [stderr] 117 |         s.trim_left_matches(self.prefix())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "d5f3358970688c69866c3e573b692bcac995ac5e30e4d65dd90c02e865579330"`
[INFO] running `"docker" "rm" "-f" "d5f3358970688c69866c3e573b692bcac995ac5e30e4d65dd90c02e865579330"`
[INFO] [stdout] d5f3358970688c69866c3e573b692bcac995ac5e30e4d65dd90c02e865579330
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/numrepr/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a9b4cfe6a87dc7c7c5823e814f73d4952ed18b6d2e71848e24b10582c905fb7e
[INFO] running `"docker" "start" "-a" "a9b4cfe6a87dc7c7c5823e814f73d4952ed18b6d2e71848e24b10582c905fb7e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/numrepr-b14209499e855e6a
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test::_prepare_input ... ok
[INFO] [stdout] test test::format_num_test ... ok
[INFO] [stdout] test test::numeral_parse_to_decimal ... ok
[INFO] [stdout] test test::numeral_prefix ... ok
[INFO] [stdout] test test::numeral_trim_prefix ... ok
[INFO] [stdout] test test::_parse_input ... ok
[INFO] [stdout] test test::numeral_determine ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a9b4cfe6a87dc7c7c5823e814f73d4952ed18b6d2e71848e24b10582c905fb7e"`
[INFO] running `"docker" "rm" "-f" "a9b4cfe6a87dc7c7c5823e814f73d4952ed18b6d2e71848e24b10582c905fb7e"`
[INFO] [stdout] a9b4cfe6a87dc7c7c5823e814f73d4952ed18b6d2e71848e24b10582c905fb7e