[INFO] updating cached repository https://github.com/firephyz/RustExamples
[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] cedb78cb5996507d6cfc6fac37a565357dc19703
[INFO] testing firephyz/RustExamples against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffirephyz%2FRustExamples" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/firephyz/RustExamples 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/firephyz/RustExamples
[INFO] finished tweaking git repo https://github.com/firephyz/RustExamples
[INFO] tweaked toml for git repo https://github.com/firephyz/RustExamples written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/firephyz/RustExamples 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] d0eaee51d64f51c66b8a15f2b33d3a79958785c3b8560b4b73600210494d8654
[INFO] running `"docker" "start" "-a" "d0eaee51d64f51c66b8a15f2b33d3a79958785c3b8560b4b73600210494d8654"`
[INFO] [stderr]    Compiling lambda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let file = match fs::File::open(&config.input_filename) {
[INFO] [stderr]   |         ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/config.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn is_option_flag(arg: &String) -> bool {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "d0eaee51d64f51c66b8a15f2b33d3a79958785c3b8560b4b73600210494d8654"`
[INFO] running `"docker" "rm" "-f" "d0eaee51d64f51c66b8a15f2b33d3a79958785c3b8560b4b73600210494d8654"`
[INFO] [stdout] d0eaee51d64f51c66b8a15f2b33d3a79958785c3b8560b4b73600210494d8654
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 27379e3fc7def76b19017c972e9978b365257de8580882ac9a04194cb4dd0bd4
[INFO] running `"docker" "start" "-a" "27379e3fc7def76b19017c972e9978b365257de8580882ac9a04194cb4dd0bd4"`
[INFO] [stderr]    Compiling lambda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let file = match fs::File::open(&config.input_filename) {
[INFO] [stderr]   |         ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/config.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn is_option_flag(arg: &String) -> bool {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "27379e3fc7def76b19017c972e9978b365257de8580882ac9a04194cb4dd0bd4"`
[INFO] running `"docker" "rm" "-f" "27379e3fc7def76b19017c972e9978b365257de8580882ac9a04194cb4dd0bd4"`
[INFO] [stdout] 27379e3fc7def76b19017c972e9978b365257de8580882ac9a04194cb4dd0bd4
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 2750fe96b05a05a379d6bec93089bdf9055a805a9c4f2a97951a59d89bbdf219
[INFO] running `"docker" "start" "-a" "2750fe96b05a05a379d6bec93089bdf9055a805a9c4f2a97951a59d89bbdf219"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lambda-8ee65615a7c2f216
[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] [stderr]      Running /opt/rustwide/target/debug/deps/lambda-d78fa035cc1db65a
[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] [stderr]    Doc-tests lambda
[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" "2750fe96b05a05a379d6bec93089bdf9055a805a9c4f2a97951a59d89bbdf219"`
[INFO] running `"docker" "rm" "-f" "2750fe96b05a05a379d6bec93089bdf9055a805a9c4f2a97951a59d89bbdf219"`
[INFO] [stdout] 2750fe96b05a05a379d6bec93089bdf9055a805a9c4f2a97951a59d89bbdf219