[INFO] crate quick-calc 0.3.0 is already in cache
[INFO] testing quick-calc-0.3.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate quick-calc 0.3.0 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate quick-calc 0.3.0 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 quick-calc 0.3.0
[INFO] finished tweaking crates.io crate quick-calc 0.3.0
[INFO] tweaked toml for crates.io crate quick-calc 0.3.0 written to work/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 90c460e5f7004a987b9aeb88348041788f6f75349960c85f86ad1e79f60587cc
[INFO] running `"docker" "start" "-a" "90c460e5f7004a987b9aeb88348041788f6f75349960c85f86ad1e79f60587cc"`
[INFO] [stderr]    Compiling quick-calc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "90c460e5f7004a987b9aeb88348041788f6f75349960c85f86ad1e79f60587cc"`
[INFO] running `"docker" "rm" "-f" "90c460e5f7004a987b9aeb88348041788f6f75349960c85f86ad1e79f60587cc"`
[INFO] [stdout] 90c460e5f7004a987b9aeb88348041788f6f75349960c85f86ad1e79f60587cc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 73150c97e0a09be734628716097085470f402b0a425ec41ff2592ae98e1f7fe8
[INFO] running `"docker" "start" "-a" "73150c97e0a09be734628716097085470f402b0a425ec41ff2592ae98e1f7fe8"`
[INFO] [stderr]    Compiling quick-calc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operations.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let mut db_dec: String;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operations.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         let mut db_hex: String;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operations.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let mut db_oct: String;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operations.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let mut db_bin: String;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "73150c97e0a09be734628716097085470f402b0a425ec41ff2592ae98e1f7fe8"`
[INFO] running `"docker" "rm" "-f" "73150c97e0a09be734628716097085470f402b0a425ec41ff2592ae98e1f7fe8"`
[INFO] [stdout] 73150c97e0a09be734628716097085470f402b0a425ec41ff2592ae98e1f7fe8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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"`
[INFO] [stdout] 7b4cfc2f4e57568f41d5a046802c8c2f59ec78c1742d0ddc921a9149c1c8f6f4
[INFO] running `"docker" "start" "-a" "7b4cfc2f4e57568f41d5a046802c8c2f59ec78c1742d0ddc921a9149c1c8f6f4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quick_calc-0ef1a8ff1eae4721
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test operations::tests::test_get_char_length ... ok
[INFO] [stdout] test operations::tests::test_calculate_char_length ... ok
[INFO] [stdout] test operations::tests::test_strip_prefix ... ok
[INFO] [stdout] test operations::tests::test_swap ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/qcal-9ee0ad31eaadd0f5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quick-calc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7b4cfc2f4e57568f41d5a046802c8c2f59ec78c1742d0ddc921a9149c1c8f6f4"`
[INFO] running `"docker" "rm" "-f" "7b4cfc2f4e57568f41d5a046802c8c2f59ec78c1742d0ddc921a9149c1c8f6f4"`
[INFO] [stdout] 7b4cfc2f4e57568f41d5a046802c8c2f59ec78c1742d0ddc921a9149c1c8f6f4