[INFO] updating cached repository https://github.com/ChristianBell1995/rust_with_ruby
[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] cb392ec4cb40446099833fdcce5669ec071b5111
[INFO] testing ChristianBell1995/rust_with_ruby against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristianBell1995%2Frust_with_ruby" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChristianBell1995/rust_with_ruby on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ChristianBell1995/rust_with_ruby
[INFO] finished tweaking git repo https://github.com/ChristianBell1995/rust_with_ruby
[INFO] tweaked toml for git repo https://github.com/ChristianBell1995/rust_with_ruby written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ChristianBell1995/rust_with_ruby already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] d251320b6704d60bb26d21719f21b8d232224d0d517dacb5e907851646df0f0e
[INFO] running `"docker" "start" "-a" "d251320b6704d60bb26d21719f21b8d232224d0d517dacb5e907851646df0f0e"`
[INFO] [stderr]    Compiling embed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/lib.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |             for _ in (0..5_000_000) {
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "d251320b6704d60bb26d21719f21b8d232224d0d517dacb5e907851646df0f0e"`
[INFO] running `"docker" "rm" "-f" "d251320b6704d60bb26d21719f21b8d232224d0d517dacb5e907851646df0f0e"`
[INFO] [stdout] d251320b6704d60bb26d21719f21b8d232224d0d517dacb5e907851646df0f0e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ff61468725485be14fb31cb57bbeae374965c5c3ad33e733f0b1956617dab6d8
[INFO] running `"docker" "start" "-a" "ff61468725485be14fb31cb57bbeae374965c5c3ad33e733f0b1956617dab6d8"`
[INFO] [stderr]    Compiling embed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/lib.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |             for _ in (0..5_000_000) {
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "ff61468725485be14fb31cb57bbeae374965c5c3ad33e733f0b1956617dab6d8"`
[INFO] running `"docker" "rm" "-f" "ff61468725485be14fb31cb57bbeae374965c5c3ad33e733f0b1956617dab6d8"`
[INFO] [stdout] ff61468725485be14fb31cb57bbeae374965c5c3ad33e733f0b1956617dab6d8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 71fd85468d8e980e0ce8d293f6c42e96bf0aabbba1f9a398499207d7417d3499
[INFO] running `"docker" "start" "-a" "71fd85468d8e980e0ce8d293f6c42e96bf0aabbba1f9a398499207d7417d3499"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/embed-488e4f28d69b5f57
[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" "71fd85468d8e980e0ce8d293f6c42e96bf0aabbba1f9a398499207d7417d3499"`
[INFO] running `"docker" "rm" "-f" "71fd85468d8e980e0ce8d293f6c42e96bf0aabbba1f9a398499207d7417d3499"`
[INFO] [stdout] 71fd85468d8e980e0ce8d293f6c42e96bf0aabbba1f9a398499207d7417d3499