[INFO] cloning repository https://github.com/JohanLorenzo/rust-testing-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohanLorenzo/rust-testing-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohanLorenzo%2Frust-testing-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohanLorenzo%2Frust-testing-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 757bdbf3887f43db9771c20cb72dfc32aa8f4321
[INFO] testing JohanLorenzo/rust-testing-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%2FJohanLorenzo%2Frust-testing-example" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohanLorenzo/rust-testing-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/JohanLorenzo/rust-testing-example
[INFO] finished tweaking git repo https://github.com/JohanLorenzo/rust-testing-example
[INFO] tweaked toml for git repo https://github.com/JohanLorenzo/rust-testing-example written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/JohanLorenzo/rust-testing-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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 43abf09e54df3b81b69f65d570351ff0c17244eac7fcc4a5bb02f69e8eff7d7d
[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" "43abf09e54df3b81b69f65d570351ff0c17244eac7fcc4a5bb02f69e8eff7d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43abf09e54df3b81b69f65d570351ff0c17244eac7fcc4a5bb02f69e8eff7d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43abf09e54df3b81b69f65d570351ff0c17244eac7fcc4a5bb02f69e8eff7d7d", kill_on_drop: false }`
[INFO] [stdout] 43abf09e54df3b81b69f65d570351ff0c17244eac7fcc4a5bb02f69e8eff7d7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 44b02dbbff5e45002b8ee4a2357b6abc3edb0b6862a5f73b862a7d7805245b0e
[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" "44b02dbbff5e45002b8ee4a2357b6abc3edb0b6862a5f73b862a7d7805245b0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-testing-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `unused_function`
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn unused_function() -> String {
[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 1.15s
[INFO] running `Command { std: "docker" "inspect" "44b02dbbff5e45002b8ee4a2357b6abc3edb0b6862a5f73b862a7d7805245b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b02dbbff5e45002b8ee4a2357b6abc3edb0b6862a5f73b862a7d7805245b0e", kill_on_drop: false }`
[INFO] [stdout] 44b02dbbff5e45002b8ee4a2357b6abc3edb0b6862a5f73b862a7d7805245b0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0efa0622792fbc92d0fc56adcad5b37bcc06501c04d47ffa95f7ce4b6cca2232
[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" "0efa0622792fbc92d0fc56adcad5b37bcc06501c04d47ffa95f7ce4b6cca2232", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-testing-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `unused_function`
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn unused_function() -> String {
[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 test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "0efa0622792fbc92d0fc56adcad5b37bcc06501c04d47ffa95f7ce4b6cca2232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0efa0622792fbc92d0fc56adcad5b37bcc06501c04d47ffa95f7ce4b6cca2232", kill_on_drop: false }`
[INFO] [stdout] 0efa0622792fbc92d0fc56adcad5b37bcc06501c04d47ffa95f7ce4b6cca2232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 4ec9e2d0e4ae9c6992b438893e98457e0dedf41d3a5bd4192f6b141cd947c7a1
[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" "4ec9e2d0e4ae9c6992b438893e98457e0dedf41d3a5bd4192f6b141cd947c7a1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `unused_function`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stdout] test test_should_add_world ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 7 | fn unused_function() -> String {
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_testing_example-093e223bbff9a47b
[INFO] running `Command { std: "docker" "inspect" "4ec9e2d0e4ae9c6992b438893e98457e0dedf41d3a5bd4192f6b141cd947c7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec9e2d0e4ae9c6992b438893e98457e0dedf41d3a5bd4192f6b141cd947c7a1", kill_on_drop: false }`
[INFO] [stdout] 4ec9e2d0e4ae9c6992b438893e98457e0dedf41d3a5bd4192f6b141cd947c7a1