[INFO] cloning repository https://github.com/iamwwc/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamwwc/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eb6244de3c32c62ef24c84bb5cb3eb5819b5d78
[INFO] testing iamwwc/rust-by-example against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamwwc/rust-by-example on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] finished tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] tweaked toml for git repo https://github.com/iamwwc/rust-by-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/iamwwc/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f697dabc235874149eeae79342299ee76e2adb269ed2a77bc1bb8bf55b632fe9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f697dabc235874149eeae79342299ee76e2adb269ed2a77bc1bb8bf55b632fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f697dabc235874149eeae79342299ee76e2adb269ed2a77bc1bb8bf55b632fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f697dabc235874149eeae79342299ee76e2adb269ed2a77bc1bb8bf55b632fe9", kill_on_drop: false }`
[INFO] [stdout] f697dabc235874149eeae79342299ee76e2adb269ed2a77bc1bb8bf55b632fe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fac5065d0ccc743dd9caf1c6a2d654962ed6fd8541220c476d70f7b321e5d2f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fac5065d0ccc743dd9caf1c6a2d654962ed6fd8541220c476d70f7b321e5d2f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnPrintable`
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "fac5065d0ccc743dd9caf1c6a2d654962ed6fd8541220c476d70f7b321e5d2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac5065d0ccc743dd9caf1c6a2d654962ed6fd8541220c476d70f7b321e5d2f9", kill_on_drop: false }`
[INFO] [stdout] fac5065d0ccc743dd9caf1c6a2d654962ed6fd8541220c476d70f7b321e5d2f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daf054355aaa7f49533f16a060692420544d9c427527443227875f99cb774e90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "daf054355aaa7f49533f16a060692420544d9c427527443227875f99cb774e90", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnPrintable`
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "daf054355aaa7f49533f16a060692420544d9c427527443227875f99cb774e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf054355aaa7f49533f16a060692420544d9c427527443227875f99cb774e90", kill_on_drop: false }`
[INFO] [stdout] daf054355aaa7f49533f16a060692420544d9c427527443227875f99cb774e90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 277ba8bbae439a08f1d87453e1e8e7cb578123f20acf9166a7cde71de89227bc
[INFO] running `Command { std: "docker" "start" "-a" "277ba8bbae439a08f1d87453e1e8e7cb578123f20acf9166a7cde71de89227bc", kill_on_drop: false }`
[INFO] [stderr] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stderr]   --> src/bin/format/main.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     struct Structure_Bool(bool);
[INFO] [stderr]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stderr]   --> src/bin/format/main.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     struct Structure_Integer(i32);
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnPrintable`
[INFO] [stderr]   --> src/bin/format/main.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 |     struct UnPrintable(i32);
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/format-5d14147bb246d9ff
[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/rust_by_example-520e79b680f963be
[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 `Command { std: "docker" "inspect" "277ba8bbae439a08f1d87453e1e8e7cb578123f20acf9166a7cde71de89227bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277ba8bbae439a08f1d87453e1e8e7cb578123f20acf9166a7cde71de89227bc", kill_on_drop: false }`
[INFO] [stdout] 277ba8bbae439a08f1d87453e1e8e7cb578123f20acf9166a7cde71de89227bc