[INFO] fetching crate roundrobin 0.1.1...
[INFO] testing roundrobin-0.1.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate roundrobin 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate roundrobin 0.1.1
[INFO] finished tweaking crates.io crate roundrobin 0.1.1
[INFO] tweaked toml for crates.io crate roundrobin 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate roundrobin 0.1.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate roundrobin 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcde5f130247fbe735ade7e5f1a0dfde4710853a87a156f25de8e4715caed225
[INFO] running `Command { std: "docker" "start" "-a" "fcde5f130247fbe735ade7e5f1a0dfde4710853a87a156f25de8e4715caed225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcde5f130247fbe735ade7e5f1a0dfde4710853a87a156f25de8e4715caed225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcde5f130247fbe735ade7e5f1a0dfde4710853a87a156f25de8e4715caed225", kill_on_drop: false }`
[INFO] [stdout] fcde5f130247fbe735ade7e5f1a0dfde4710853a87a156f25de8e4715caed225
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39f8d3de6fe24c1535df7043d64c92466c562ae0040dd6181d6c8308a942a6fc
[INFO] running `Command { std: "docker" "start" "-a" "39f8d3de6fe24c1535df7043d64c92466c562ae0040dd6181d6c8308a942a6fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling roundrobin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `RoundRobinBalancer` and `Server`
[INFO] [stdout]   --> src/rr.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::{RoundRobinBalancer, Server};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/wrr.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `url` is never read
[INFO] [stdout]  --> src/rr.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Server {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 5 |     url: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Server` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "39f8d3de6fe24c1535df7043d64c92466c562ae0040dd6181d6c8308a942a6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f8d3de6fe24c1535df7043d64c92466c562ae0040dd6181d6c8308a942a6fc", kill_on_drop: false }`
[INFO] [stdout] 39f8d3de6fe24c1535df7043d64c92466c562ae0040dd6181d6c8308a942a6fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 726f68e8c270c0b550699e41f6d316f4a2ea6bbe721add36cfdf7dcf96e9e54a
[INFO] running `Command { std: "docker" "start" "-a" "726f68e8c270c0b550699e41f6d316f4a2ea6bbe721add36cfdf7dcf96e9e54a", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `RoundRobinBalancer` and `Server`
[INFO] [stdout]   --> src/rr.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::{RoundRobinBalancer, Server};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/wrr.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `url` is never read
[INFO] [stdout]  --> src/rr.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Server {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 5 |     url: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Server` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling roundrobin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "726f68e8c270c0b550699e41f6d316f4a2ea6bbe721add36cfdf7dcf96e9e54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726f68e8c270c0b550699e41f6d316f4a2ea6bbe721add36cfdf7dcf96e9e54a", kill_on_drop: false }`
[INFO] [stdout] 726f68e8c270c0b550699e41f6d316f4a2ea6bbe721add36cfdf7dcf96e9e54a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57d323c089cba413e63586b3bbf787766a2f3ff28271997fdc4fc73a39880131
[INFO] running `Command { std: "docker" "start" "-a" "57d323c089cba413e63586b3bbf787766a2f3ff28271997fdc4fc73a39880131", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `RoundRobinBalancer` and `Server`
[INFO] [stderr]   --> src/rr.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use super::{RoundRobinBalancer, Server};
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/wrr.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `url` is never read
[INFO] [stderr]  --> src/rr.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Server {
[INFO] [stderr]   |            ------ field in this struct
[INFO] [stderr] 5 |     url: String,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Server` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `roundrobin` (lib) generated 3 warnings (run `cargo fix --lib -p roundrobin` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/roundrobin-2a6ba3d518c95ffc)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test rr::tests::test_simple_next ... ok
[INFO] [stdout] test wrr::tests::test_next ... ok
[INFO] [stdout] test wrr::tests::test_fail_then_next ... ok
[INFO] [stdout] test wrr::tests::test_fail ... ok
[INFO] [stderr]    Doc-tests roundrobin
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "57d323c089cba413e63586b3bbf787766a2f3ff28271997fdc4fc73a39880131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d323c089cba413e63586b3bbf787766a2f3ff28271997fdc4fc73a39880131", kill_on_drop: false }`
[INFO] [stdout] 57d323c089cba413e63586b3bbf787766a2f3ff28271997fdc4fc73a39880131