[INFO] cloning repository https://github.com/idunn-network/idunn-dht
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/idunn-network/idunn-dht" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidunn-network%2Fidunn-dht", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidunn-network%2Fidunn-dht'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef61829f981319280043c11f6390a731b55516c3
[INFO] checking idunn-network/idunn-dht against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidunn-network%2Fidunn-dht" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/idunn-network/idunn-dht on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/idunn-network/idunn-dht
[INFO] finished tweaking git repo https://github.com/idunn-network/idunn-dht
[INFO] tweaked toml for git repo https://github.com/idunn-network/idunn-dht written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/idunn-network/idunn-dht already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c28e8585683dd941f681fe0769c0a3f85ce76959c974343483bdb4a5fe1ca720
[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" "c28e8585683dd941f681fe0769c0a3f85ce76959c974343483bdb4a5fe1ca720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c28e8585683dd941f681fe0769c0a3f85ce76959c974343483bdb4a5fe1ca720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28e8585683dd941f681fe0769c0a3f85ce76959c974343483bdb4a5fe1ca720", kill_on_drop: false }`
[INFO] [stdout] c28e8585683dd941f681fe0769c0a3f85ce76959c974343483bdb4a5fe1ca720
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 06907f9eb7fe2c03f102e6844fe6dfd03514da3ccc874a4dbf0ad70b5d5faf34
[INFO] running `Command { std: "docker" "start" "-a" "06907f9eb7fe2c03f102e6844fe6dfd03514da3ccc874a4dbf0ad70b5d5faf34", kill_on_drop: false }`
[INFO] [stderr]     Checking idunn-dht v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nodeid.rs:52:35
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for &b in self.0.iter() { try!(write!(f, "{:02x}", b)); }
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/nodeid.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 |         for i in (0..NODE_ID_SIZE) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/nodeid.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |         for i in (0..NODE_ID_SIZE) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nodeid.rs:52:35
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for &b in self.0.iter() { try!(write!(f, "{:02x}", b)); }
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/nodeid.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 |         for i in (0..NODE_ID_SIZE) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/nodeid.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 |         for i in (0..NODE_ID_SIZE) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "06907f9eb7fe2c03f102e6844fe6dfd03514da3ccc874a4dbf0ad70b5d5faf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06907f9eb7fe2c03f102e6844fe6dfd03514da3ccc874a4dbf0ad70b5d5faf34", kill_on_drop: false }`
[INFO] [stdout] 06907f9eb7fe2c03f102e6844fe6dfd03514da3ccc874a4dbf0ad70b5d5faf34