[INFO] updating cached repository Ragnyll/rust_variables [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Ragnyll/rust_variables [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Ragnyll/rust_variables" "work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnyll/rust_variables"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnyll/rust_variables'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Ragnyll/rust_variables" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b02e8595809a2dca3ba21af362c3cbb664c264de [INFO] sha for GitHub repo Ragnyll/rust_variables: b02e8595809a2dca3ba21af362c3cbb664c264de [INFO] validating manifest of Ragnyll/rust_variables 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 Ragnyll/rust_variables 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 Ragnyll/rust_variables [INFO] finished frobbing Ragnyll/rust_variables [INFO] frobbed toml for Ragnyll/rust_variables written to work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnyll/rust_variables/Cargo.toml [INFO] started frobbing Ragnyll/rust_variables [INFO] finished frobbing Ragnyll/rust_variables [INFO] frobbed toml for Ragnyll/rust_variables written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables/Cargo.toml [INFO] crate Ragnyll/rust_variables already has a lockfile, it will not be regenerated [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 Ragnyll/rust_variables 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-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables:/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] 7814d6064058743fb2e3f68d80f830db94ac21787d2e184015b383404f1b962a [INFO] running `"docker" "start" "-a" "7814d6064058743fb2e3f68d80f830db94ac21787d2e184015b383404f1b962a"` [INFO] [stderr] Compiling variables v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `difference` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let difference = 95.5 - 4.3; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_difference` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `product` [INFO] [stderr] --> src/main.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 44 | let product = 4 * 30; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_product` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `quotient` [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let quotient = 56.7 / 32.2; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_quotient` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remainder` [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | let remainder = 43 % 5; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/main.rs:53:9 [INFO] [stderr] | [INFO] [stderr] 53 | let t = true; // without explicit type annotation [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let f: bool = false; // with explicit type annotation [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:59:10 [INFO] [stderr] | [INFO] [stderr] 59 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:59:16 [INFO] [stderr] | [INFO] [stderr] 59 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first` [INFO] [stderr] --> src/main.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | let first = months[0]; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_first` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `"docker" "inspect" "7814d6064058743fb2e3f68d80f830db94ac21787d2e184015b383404f1b962a"` [INFO] running `"docker" "rm" "-f" "7814d6064058743fb2e3f68d80f830db94ac21787d2e184015b383404f1b962a"` [INFO] [stdout] 7814d6064058743fb2e3f68d80f830db94ac21787d2e184015b383404f1b962a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables:/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] e304f463ed3904c519599cf53cb2b05ab95d47dc81bd96c42afe56d4cf1aba9d [INFO] running `"docker" "start" "-a" "e304f463ed3904c519599cf53cb2b05ab95d47dc81bd96c42afe56d4cf1aba9d"` [INFO] [stderr] Compiling variables v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `difference` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let difference = 95.5 - 4.3; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_difference` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `product` [INFO] [stderr] --> src/main.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 44 | let product = 4 * 30; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_product` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `quotient` [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let quotient = 56.7 / 32.2; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_quotient` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remainder` [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | let remainder = 43 % 5; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/main.rs:53:9 [INFO] [stderr] | [INFO] [stderr] 53 | let t = true; // without explicit type annotation [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/main.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let f: bool = false; // with explicit type annotation [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:59:10 [INFO] [stderr] | [INFO] [stderr] 59 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:59:16 [INFO] [stderr] | [INFO] [stderr] 59 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first` [INFO] [stderr] --> src/main.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | let first = months[0]; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_first` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `"docker" "inspect" "e304f463ed3904c519599cf53cb2b05ab95d47dc81bd96c42afe56d4cf1aba9d"` [INFO] running `"docker" "rm" "-f" "e304f463ed3904c519599cf53cb2b05ab95d47dc81bd96c42afe56d4cf1aba9d"` [INFO] [stdout] e304f463ed3904c519599cf53cb2b05ab95d47dc81bd96c42afe56d4cf1aba9d [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnyll/rust_variables:/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] ec32d558f7f6cdde8e2d8a73c484541ae67ed0b900f04f4cfb5185481fa8666f [INFO] running `"docker" "start" "-a" "ec32d558f7f6cdde8e2d8a73c484541ae67ed0b900f04f4cfb5185481fa8666f"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/variables-adc49d70192224be [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" "ec32d558f7f6cdde8e2d8a73c484541ae67ed0b900f04f4cfb5185481fa8666f"` [INFO] running `"docker" "rm" "-f" "ec32d558f7f6cdde8e2d8a73c484541ae67ed0b900f04f4cfb5185481fa8666f"` [INFO] [stdout] ec32d558f7f6cdde8e2d8a73c484541ae67ed0b900f04f4cfb5185481fa8666f