[INFO] cloning repository https://github.com/vognev/rust-dhns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vognev/rust-dhns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvognev%2Frust-dhns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvognev%2Frust-dhns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42df4c74125579a71158741ac7699cdba9381eb1
[INFO] testing vognev/rust-dhns against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvognev%2Frust-dhns" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vognev/rust-dhns on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vognev/rust-dhns
[INFO] finished tweaking git repo https://github.com/vognev/rust-dhns
[INFO] tweaked toml for git repo https://github.com/vognev/rust-dhns written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vognev/rust-dhns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 711523a6345f56ecbbb8bdbb16c329d89cff0c8e1b7487aa58324eb1f929524a
[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" "711523a6345f56ecbbb8bdbb16c329d89cff0c8e1b7487aa58324eb1f929524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "711523a6345f56ecbbb8bdbb16c329d89cff0c8e1b7487aa58324eb1f929524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "711523a6345f56ecbbb8bdbb16c329d89cff0c8e1b7487aa58324eb1f929524a", kill_on_drop: false }`
[INFO] [stdout] 711523a6345f56ecbbb8bdbb16c329d89cff0c8e1b7487aa58324eb1f929524a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ecbad240faf16dcb48492f562ce1b6bd7d4a896a3a4b3bddc8c9f7212dac4b3
[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" "2ecbad240faf16dcb48492f562ce1b6bd7d4a896a3a4b3bddc8c9f7212dac4b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling dhns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/support/json.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/docker.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     dbg!(json);
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `Command { std: "docker" "inspect" "2ecbad240faf16dcb48492f562ce1b6bd7d4a896a3a4b3bddc8c9f7212dac4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ecbad240faf16dcb48492f562ce1b6bd7d4a896a3a4b3bddc8c9f7212dac4b3", kill_on_drop: false }`
[INFO] [stdout] 2ecbad240faf16dcb48492f562ce1b6bd7d4a896a3a4b3bddc8c9f7212dac4b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--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] 6d6906cc35d6570c12d2ac0bf31fd722332fc28b9402668fed6d3666ded88008
[INFO] running `Command { std: "docker" "start" "-a" "6d6906cc35d6570c12d2ac0bf31fd722332fc28b9402668fed6d3666ded88008", kill_on_drop: false }`
[INFO] [stderr]    Compiling dhns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/support/json.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/docker.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     dbg!(json);
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "6d6906cc35d6570c12d2ac0bf31fd722332fc28b9402668fed6d3666ded88008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6906cc35d6570c12d2ac0bf31fd722332fc28b9402668fed6d3666ded88008", kill_on_drop: false }`
[INFO] [stdout] 6d6906cc35d6570c12d2ac0bf31fd722332fc28b9402668fed6d3666ded88008
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] c509163ea6c45db3b433f36c4c11c2e6af731fbe2efb0627d27190d2bd93321b
[INFO] running `Command { std: "docker" "start" "-a" "c509163ea6c45db3b433f36c4c11c2e6af731fbe2efb0627d27190d2bd93321b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/support/json.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/docker.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     dbg!(json);
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dhns-62f111f4f7e0b122
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test dns::proto::reader::tests::test_new ... ok
[INFO] [stdout] test support::json::test::test_bbbb ... ok
[INFO] [stdout] test support::json::test::test_empty_object ... ok
[INFO] [stdout] test support::json::test::test_parse_null_incomplete ... ok
[INFO] [stdout] test support::json::test::test_parse_positive_i64 ... ok
[INFO] [stdout] test support::json::test::test_parse_string ... ok
[INFO] [stdout] test support::json::test::test_empty_array ... ok
[INFO] [stdout] test support::json::test::test_misc_array ... ok
[INFO] [stdout] test support::json::test::test_parse_negative_f64 ... ok
[INFO] [stdout] test support::json::test::test_parse_negative_i64 ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/client-df9de523b3e53eb9
[INFO] [stdout] test support::json::test::test_parse_positive_f64 ... ok
[INFO] [stdout] test dns::proto::reader::tests::test_read_u16 ... ok
[INFO] [stdout] test support::json::test::test_parse_true ... ok
[INFO] [stdout] test support::json::test::test_aaaa ... ok
[INFO] [stdout] test dns::proto::reader::tests::test_read_u8 ... ok
[INFO] [stdout] test support::json::test::test_mixed_array ... ok
[INFO] [stdout] test dns::proto::writer::tests::test_write_u8 ... ok
[INFO] [stdout] test support::json::test::test_parse_false ... ok
[INFO] [stdout] test support::json::test::test_parse_false_incomplete ... ok
[INFO] [stdout] test support::json::test::test_parse_true_incomplete ... ok
[INFO] [stdout] test support::json::test::test_parse_null ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/docker-0dea370b785d3d90
[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] [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/server-bd24bf974b35623d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dhns
[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] [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" "c509163ea6c45db3b433f36c4c11c2e6af731fbe2efb0627d27190d2bd93321b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c509163ea6c45db3b433f36c4c11c2e6af731fbe2efb0627d27190d2bd93321b", kill_on_drop: false }`
[INFO] [stdout] c509163ea6c45db3b433f36c4c11c2e6af731fbe2efb0627d27190d2bd93321b