[INFO] updating cached repository https://github.com/modeverv/Rust2019 [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b3b7168d3df254b8c9695e73c6d68531f123921d [INFO] testing modeverv/Rust2019 against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2FRust2019" "work/builds/worker-3/source"` [INFO] [stderr] Cloning into 'work/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modeverv/Rust2019 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 git repo https://github.com/modeverv/Rust2019 [INFO] finished tweaking git repo https://github.com/modeverv/Rust2019 [INFO] tweaked toml for git repo https://github.com/modeverv/Rust2019 written to work/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/modeverv/Rust2019 already has a lockfile, it will not be regenerated [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] cd90167506c4dd99cd922e5b50e00b3f0948ee26a57fb09626e62816a3439d98 [INFO] running `"docker" "start" "-a" "cd90167506c4dd99cd922e5b50e00b3f0948ee26a57fb09626e62816a3439d98"` [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `xx` [INFO] [stderr] --> src/main.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | let (xx, y) = (1, 2); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_xx` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `yy` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let yy: i32 = 5; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_yy` [INFO] [stderr] [INFO] [stderr] warning: variable `yyy` is assigned to, but never used [INFO] [stderr] --> src/main.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let mut yyy = 5; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_yyy` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `yyy` is never read [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | yyy = 10; [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: `px` [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let px = true; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_px` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `py` [INFO] [stderr] --> src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let py:bool = false; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_py` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pc` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let pc:char = 'x'; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_pc` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let middle = &pa[1..4]; // [1,2,3] [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ify` [INFO] [stderr] --> src/main.rs:52:9 [INFO] [stderr] | [INFO] [stderr] 52 | let ify = if x == 5 { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ify` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ifyy` [INFO] [stderr] --> src/main.rs:57:9 [INFO] [stderr] | [INFO] [stderr] 57 | let ifyy = if x == 5 { 10 } else { 15 }; // y: i32 [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_ifyy` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let mut pa = [0, 1, 2, 3, 4]; [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] Finished dev [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `"docker" "inspect" "cd90167506c4dd99cd922e5b50e00b3f0948ee26a57fb09626e62816a3439d98"` [INFO] running `"docker" "rm" "-f" "cd90167506c4dd99cd922e5b50e00b3f0948ee26a57fb09626e62816a3439d98"` [INFO] [stdout] cd90167506c4dd99cd922e5b50e00b3f0948ee26a57fb09626e62816a3439d98 [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] 922e3699399f8787197233bb2eb69a7fd201475709bfc7003a800da545313499 [INFO] running `"docker" "start" "-a" "922e3699399f8787197233bb2eb69a7fd201475709bfc7003a800da545313499"` [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `xx` [INFO] [stderr] --> src/main.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | let (xx, y) = (1, 2); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_xx` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `yy` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let yy: i32 = 5; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_yy` [INFO] [stderr] [INFO] [stderr] warning: variable `yyy` is assigned to, but never used [INFO] [stderr] --> src/main.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let mut yyy = 5; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_yyy` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `yyy` is never read [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | yyy = 10; [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: `px` [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let px = true; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_px` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `py` [INFO] [stderr] --> src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let py:bool = false; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_py` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pc` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let pc:char = 'x'; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_pc` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let middle = &pa[1..4]; // [1,2,3] [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ify` [INFO] [stderr] --> src/main.rs:52:9 [INFO] [stderr] | [INFO] [stderr] 52 | let ify = if x == 5 { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ify` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ifyy` [INFO] [stderr] --> src/main.rs:57:9 [INFO] [stderr] | [INFO] [stderr] 57 | let ifyy = if x == 5 { 10 } else { 15 }; // y: i32 [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_ifyy` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let mut pa = [0, 1, 2, 3, 4]; [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] Finished dev [unoptimized + debuginfo] target(s) in 0.31s [INFO] running `"docker" "inspect" "922e3699399f8787197233bb2eb69a7fd201475709bfc7003a800da545313499"` [INFO] running `"docker" "rm" "-f" "922e3699399f8787197233bb2eb69a7fd201475709bfc7003a800da545313499"` [INFO] [stdout] 922e3699399f8787197233bb2eb69a7fd201475709bfc7003a800da545313499 [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] 6588e0dabca808e4dbf9c7d5460d4edcf1dea6ce3f2408a789d4afdb9db8a2ec [INFO] running `"docker" "start" "-a" "6588e0dabca808e4dbf9c7d5460d4edcf1dea6ce3f2408a789d4afdb9db8a2ec"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/hello_world-283fd65c27e364b7 [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" "6588e0dabca808e4dbf9c7d5460d4edcf1dea6ce3f2408a789d4afdb9db8a2ec"` [INFO] running `"docker" "rm" "-f" "6588e0dabca808e4dbf9c7d5460d4edcf1dea6ce3f2408a789d4afdb9db8a2ec"` [INFO] [stdout] 6588e0dabca808e4dbf9c7d5460d4edcf1dea6ce3f2408a789d4afdb9db8a2ec