[INFO] cloning repository https://github.com/Fedomn/rust-knowledge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fedomn/rust-knowledge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedomn%2Frust-knowledge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedomn%2Frust-knowledge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19d63d467485b38394b3ea8febecfb863d547ae9
[INFO] testing Fedomn/rust-knowledge against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedomn%2Frust-knowledge" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fedomn/rust-knowledge on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fedomn/rust-knowledge
[INFO] finished tweaking git repo https://github.com/Fedomn/rust-knowledge
[INFO] tweaked toml for git repo https://github.com/Fedomn/rust-knowledge written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Fedomn/rust-knowledge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e6a2dde402012ea6c3e47fc5af4367e5dde441bc51782c4b0673d65d06fc431
[INFO] running `Command { std: "docker" "start" "-a" "4e6a2dde402012ea6c3e47fc5af4367e5dde441bc51782c4b0673d65d06fc431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e6a2dde402012ea6c3e47fc5af4367e5dde441bc51782c4b0673d65d06fc431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e6a2dde402012ea6c3e47fc5af4367e5dde441bc51782c4b0673d65d06fc431", kill_on_drop: false }`
[INFO] [stdout] 4e6a2dde402012ea6c3e47fc5af4367e5dde441bc51782c4b0673d65d06fc431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 869a5d2688aa99f4fb9b00116d265019092923e68e58b0fbf30403424299e89e
[INFO] running `Command { std: "docker" "start" "-a" "869a5d2688aa99f4fb9b00116d265019092923e68e58b0fbf30403424299e89e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling rust-knowledge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `longest`
[INFO] [stdout]  --> src/lifetimes.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn longest<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "869a5d2688aa99f4fb9b00116d265019092923e68e58b0fbf30403424299e89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "869a5d2688aa99f4fb9b00116d265019092923e68e58b0fbf30403424299e89e", kill_on_drop: false }`
[INFO] [stdout] 869a5d2688aa99f4fb9b00116d265019092923e68e58b0fbf30403424299e89e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f89c81d22831b84d83704cbc2b1c2096e7a7533e8f0bca22c405edf4c98ce2
[INFO] running `Command { std: "docker" "start" "-a" "22f89c81d22831b84d83704cbc2b1c2096e7a7533e8f0bca22c405edf4c98ce2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-knowledge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "22f89c81d22831b84d83704cbc2b1c2096e7a7533e8f0bca22c405edf4c98ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f89c81d22831b84d83704cbc2b1c2096e7a7533e8f0bca22c405edf4c98ce2", kill_on_drop: false }`
[INFO] [stdout] 22f89c81d22831b84d83704cbc2b1c2096e7a7533e8f0bca22c405edf4c98ce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb4ba1912cbd311c36cbb0e475896f0dd0beee3c9440e14c5493f31ac450d1f7
[INFO] running `Command { std: "docker" "start" "-a" "cb4ba1912cbd311c36cbb0e475896f0dd0beee3c9440e14c5493f31ac450d1f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_knowledge-6a06cd25fba9b3ea)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test enums::option ... ok
[INFO] [stdout] test basic::basic::string ... ok
[INFO] [stdout] test basic::basic::tuple ... ok
[INFO] [stdout] test basic::basic::function ... ok
[INFO] [stdout] test basic::basic::pattern_match ... ok
[INFO] [stdout] test basic::basic::destructuring ... ok
[INFO] [stdout] test basic::basic::map ... ok
[INFO] [stdout] test basic::basic::variable ... ok
[INFO] [stdout] test enums::enum_match ... ok
[INFO] [stdout] test basic::basic::stream ... ok
[INFO] [stdout] test basic::basic::control_flow ... ok
[INFO] [stdout] test constant::constant::constfn_test ... ok
[INFO] [stdout] test basic::basic::object ... ok
[INFO] [stdout] test ownership::ownership::scope_reference ... ok
[INFO] [stdout] test basic::basic::array ... ok
[INFO] [stdout] test error::err::terminate_err ... ok
[INFO] [stdout] test lifetimes::lifetime_constraints ... ok
[INFO] [stdout] test lifetimes::lifetime_reference ... ok
[INFO] [stdout] test error::err::boxed_err ... ok
[INFO] [stdout] test ownership::ownership::scope ... ok
[INFO] [stdout] test ownership::ownership::scope_move ... ok
[INFO] [stdout] test error::err::custom_err ... ok
[INFO] [stdout] test error::err::fallback_err ... ok
[INFO] [stdout] test error::err::ignore_err ... ok
[INFO] [stdout] test error::err::propagate_err ... ok
[INFO] [stdout] test lifetimes::lifetime_annotations ... ok
[INFO] [stdout] test lifetimes::static_test ... ok
[INFO] [stdout] test lifetimes::test1 ... ok
[INFO] [stdout] test ownership::ownership::scope_func ... ok
[INFO] [stdout] test ownership::ownership::string ... ok
[INFO] [stdout] test wrapper_type::wrapper_type::deref_test ... ok
[INFO] [stdout] test wrapper_type::wrapper_type::rc_test ... ok
[INFO] [stdout] test structs::tuple_structs ... ok
[INFO] [stdout] test structs::basic ... ok
[INFO] [stdout] test wrapper_type::wrapper_type::box_recursive_type ... ok
[INFO] [stdout] test structs::method ... ok
[INFO] [stdout] test wrapper_type::wrapper_type::refcell_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb4ba1912cbd311c36cbb0e475896f0dd0beee3c9440e14c5493f31ac450d1f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb4ba1912cbd311c36cbb0e475896f0dd0beee3c9440e14c5493f31ac450d1f7", kill_on_drop: false }`
[INFO] [stdout] cb4ba1912cbd311c36cbb0e475896f0dd0beee3c9440e14c5493f31ac450d1f7