[INFO] updating cached repository https://github.com/thenixan/learning-rust
[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] d6613b3e981867003821b2297af6b8cf1c58dbd5
[INFO] testing thenixan/learning-rust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Flearning-rust" "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/thenixan/learning-rust 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/thenixan/learning-rust
[INFO] finished tweaking git repo https://github.com/thenixan/learning-rust
[INFO] tweaked toml for git repo https://github.com/thenixan/learning-rust written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/thenixan/learning-rust 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-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 0665a6350eb825bef558c5b1598f5fb85feb8d03f84a14a91f9a4dc31a522f6b
[INFO] running `"docker" "start" "-a" "0665a6350eb825bef558c5b1598f5fb85feb8d03f84a14a91f9a4dc31a522f6b"`
[INFO] [stderr]    Compiling task_manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "0665a6350eb825bef558c5b1598f5fb85feb8d03f84a14a91f9a4dc31a522f6b"`
[INFO] running `"docker" "rm" "-f" "0665a6350eb825bef558c5b1598f5fb85feb8d03f84a14a91f9a4dc31a522f6b"`
[INFO] [stdout] 0665a6350eb825bef558c5b1598f5fb85feb8d03f84a14a91f9a4dc31a522f6b
[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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 56244419e84f03a1d126ee1d5bcacc8bfb44338cafb626ee9b7c9332d0310077
[INFO] running `"docker" "start" "-a" "56244419e84f03a1d126ee1d5bcacc8bfb44338cafb626ee9b7c9332d0310077"`
[INFO] [stderr]    Compiling task_manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "56244419e84f03a1d126ee1d5bcacc8bfb44338cafb626ee9b7c9332d0310077"`
[INFO] running `"docker" "rm" "-f" "56244419e84f03a1d126ee1d5bcacc8bfb44338cafb626ee9b7c9332d0310077"`
[INFO] [stdout] 56244419e84f03a1d126ee1d5bcacc8bfb44338cafb626ee9b7c9332d0310077
[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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 2e07ee2d9fa747d72adb30741a544c1362b56bb5bed9cb3a8652a2d869a04ad1
[INFO] running `"docker" "start" "-a" "2e07ee2d9fa747d72adb30741a544c1362b56bb5bed9cb3a8652a2d869a04ad1"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/task_manager-4d6fdb2257c1f527
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/task_manager-799e3482c04417fb
[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 task_manager
[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" "2e07ee2d9fa747d72adb30741a544c1362b56bb5bed9cb3a8652a2d869a04ad1"`
[INFO] running `"docker" "rm" "-f" "2e07ee2d9fa747d72adb30741a544c1362b56bb5bed9cb3a8652a2d869a04ad1"`
[INFO] [stdout] 2e07ee2d9fa747d72adb30741a544c1362b56bb5bed9cb3a8652a2d869a04ad1