[INFO] crate frank 0.1.3 is already in cache [INFO] extracting crate frank 0.1.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/frank/0.1.3 [INFO] extracting crate frank 0.1.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/frank/0.1.3 [INFO] validating manifest of frank-0.1.3 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 frank-0.1.3 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 frank-0.1.3 [INFO] finished frobbing frank-0.1.3 [INFO] frobbed toml for frank-0.1.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/frank/0.1.3/Cargo.toml [INFO] started frobbing frank-0.1.3 [INFO] finished frobbing frank-0.1.3 [INFO] frobbed toml for frank-0.1.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/frank/0.1.3/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 frank-0.1.3 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/frank/0.1.3:/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] c5471e3311d8899679eeb6128b47611173d31b188564c10a69b0083f777a56a7 [INFO] running `"docker" "start" "-a" "c5471e3311d8899679eeb6128b47611173d31b188564c10a69b0083f777a56a7"` [INFO] [stderr] Compiling frank v0.1.3 (/opt/crater/workdir) [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/lib.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle. Keep this line. Dancing in an iffy lifetime. [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/main.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle. Keep this line. Dancing in an iffy lifetime. [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rcl` [INFO] [stderr] --> src/main.rs:489:9 [INFO] [stderr] | [INFO] [stderr] 489 | let rcl = rank_count_lesser(&spinning); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_rcl` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 7.38s [INFO] running `"docker" "inspect" "c5471e3311d8899679eeb6128b47611173d31b188564c10a69b0083f777a56a7"` [INFO] running `"docker" "rm" "-f" "c5471e3311d8899679eeb6128b47611173d31b188564c10a69b0083f777a56a7"` [INFO] [stdout] c5471e3311d8899679eeb6128b47611173d31b188564c10a69b0083f777a56a7 [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/frank/0.1.3:/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] 2f6d962fb64f03a5119bd736a5aacf928b3b1e950a98b6169b52adb74267ee73 [INFO] running `"docker" "start" "-a" "2f6d962fb64f03a5119bd736a5aacf928b3b1e950a98b6169b52adb74267ee73"` [INFO] [stderr] Compiling frank v0.1.3 (/opt/crater/workdir) [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/main.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle. Keep this line. Dancing in an iffy lifetime. [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rcl` [INFO] [stderr] --> src/main.rs:489:9 [INFO] [stderr] | [INFO] [stderr] 489 | let rcl = rank_count_lesser(&spinning); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_rcl` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/lib.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle. Keep this line. Dancing in an iffy lifetime. [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 1.35s [INFO] running `"docker" "inspect" "2f6d962fb64f03a5119bd736a5aacf928b3b1e950a98b6169b52adb74267ee73"` [INFO] running `"docker" "rm" "-f" "2f6d962fb64f03a5119bd736a5aacf928b3b1e950a98b6169b52adb74267ee73"` [INFO] [stdout] 2f6d962fb64f03a5119bd736a5aacf928b3b1e950a98b6169b52adb74267ee73 [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/frank/0.1.3:/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] aaa7377f4576edb2123b0116af77448d17962cecdab1884646eef36f31764a85 [INFO] running `"docker" "start" "-a" "aaa7377f4576edb2123b0116af77448d17962cecdab1884646eef36f31764a85"` [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/frank-7e1cb812c83b32a7 [INFO] [stderr] Running /opt/crater/target/debug/deps/frank-d178ac1390dfc748 [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] [stdout] [INFO] [stderr] Doc-tests frank [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] [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" "aaa7377f4576edb2123b0116af77448d17962cecdab1884646eef36f31764a85"` [INFO] running `"docker" "rm" "-f" "aaa7377f4576edb2123b0116af77448d17962cecdab1884646eef36f31764a85"` [INFO] [stdout] aaa7377f4576edb2123b0116af77448d17962cecdab1884646eef36f31764a85