[INFO] updating cached repository DaRavenox/Rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/DaRavenox/Rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/DaRavenox/Rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/DaRavenox/Rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DaRavenox/Rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/DaRavenox/Rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DaRavenox/Rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DaRavenox/Rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b4507fe6801b4b1075b3b7d82f4388b34eae37e3 [INFO] sha for GitHub repo DaRavenox/Rust: b4507fe6801b4b1075b3b7d82f4388b34eae37e3 [INFO] validating manifest of DaRavenox/Rust 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 DaRavenox/Rust 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 DaRavenox/Rust [INFO] finished frobbing DaRavenox/Rust [INFO] frobbed toml for DaRavenox/Rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/DaRavenox/Rust/Cargo.toml [INFO] started frobbing DaRavenox/Rust [INFO] finished frobbing DaRavenox/Rust [INFO] frobbed toml for DaRavenox/Rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DaRavenox/Rust/Cargo.toml [INFO] crate DaRavenox/Rust 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 DaRavenox/Rust 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-3/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/DaRavenox/Rust:/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] 5e595bdcfc574547981c62061b245f924bd5d610df8125e2808d3d49fd3b6208 [INFO] running `"docker" "start" "-a" "5e595bdcfc574547981c62061b245f924bd5d610df8125e2808d3d49fd3b6208"` [INFO] [stderr] Compiling hello_rust v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | let mut y: i32 = 12; // mutable, this value CAN be changed; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | let z:i32; //We initialize a variable; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:66:27 [INFO] [stderr] | [INFO] [stderr] 66 | fn math_with_args(x: i32, y: i32, z: i32) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:66:35 [INFO] [stderr] | [INFO] [stderr] 66 | fn math_with_args(x: i32, y: i32, z: i32) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | fn diverges(x: i32) -> !{ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | let mut y: i32 = 12; // mutable, this value CAN be changed; [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/main.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let mut x = 7; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:78:1 [INFO] [stderr] | [INFO] [stderr] 78 | fn diverges(x: i32) -> !{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `testBorrow` should have a snake case name [INFO] [stderr] --> src/main.rs:229:4 [INFO] [stderr] | [INFO] [stderr] 229 | fn testBorrow(v1: &mut Vec, v2: &mut Vec){ [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `test_borrow` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `"docker" "inspect" "5e595bdcfc574547981c62061b245f924bd5d610df8125e2808d3d49fd3b6208"` [INFO] running `"docker" "rm" "-f" "5e595bdcfc574547981c62061b245f924bd5d610df8125e2808d3d49fd3b6208"` [INFO] [stdout] 5e595bdcfc574547981c62061b245f924bd5d610df8125e2808d3d49fd3b6208 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/DaRavenox/Rust:/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] a3d50931a1eacb37b93131d2af9ad45052b4fc6cc3e44125ccf0a0cd4728dc47 [INFO] running `"docker" "start" "-a" "a3d50931a1eacb37b93131d2af9ad45052b4fc6cc3e44125ccf0a0cd4728dc47"` [INFO] [stderr] Compiling hello_rust v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | let mut y: i32 = 12; // mutable, this value CAN be changed; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | let z:i32; //We initialize a variable; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:66:27 [INFO] [stderr] | [INFO] [stderr] 66 | fn math_with_args(x: i32, y: i32, z: i32) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:66:35 [INFO] [stderr] | [INFO] [stderr] 66 | fn math_with_args(x: i32, y: i32, z: i32) -> i32 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | fn diverges(x: i32) -> !{ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | let mut y: i32 = 12; // mutable, this value CAN be changed; [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/main.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let mut x = 7; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:78:1 [INFO] [stderr] | [INFO] [stderr] 78 | fn diverges(x: i32) -> !{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `testBorrow` should have a snake case name [INFO] [stderr] --> src/main.rs:229:4 [INFO] [stderr] | [INFO] [stderr] 229 | fn testBorrow(v1: &mut Vec, v2: &mut Vec){ [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `test_borrow` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `"docker" "inspect" "a3d50931a1eacb37b93131d2af9ad45052b4fc6cc3e44125ccf0a0cd4728dc47"` [INFO] running `"docker" "rm" "-f" "a3d50931a1eacb37b93131d2af9ad45052b4fc6cc3e44125ccf0a0cd4728dc47"` [INFO] [stdout] a3d50931a1eacb37b93131d2af9ad45052b4fc6cc3e44125ccf0a0cd4728dc47 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/DaRavenox/Rust:/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] eab8da2575869211c7163d31a1834e95d359e169375e84f2bfc1f3fe9a51d418 [INFO] running `"docker" "start" "-a" "eab8da2575869211c7163d31a1834e95d359e169375e84f2bfc1f3fe9a51d418"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/hello_rust-5c56c8b94a60f690 [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" "eab8da2575869211c7163d31a1834e95d359e169375e84f2bfc1f3fe9a51d418"` [INFO] running `"docker" "rm" "-f" "eab8da2575869211c7163d31a1834e95d359e169375e84f2bfc1f3fe9a51d418"` [INFO] [stdout] eab8da2575869211c7163d31a1834e95d359e169375e84f2bfc1f3fe9a51d418