[INFO] cloning repository https://github.com/ultrasaurus/irc-tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ultrasaurus/irc-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Firc-tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Firc-tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fd157604121cd5627a50abc364fe3d2fe96895b
[INFO] testing ultrasaurus/irc-tokio against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultrasaurus%2Firc-tokio" "/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/ultrasaurus/irc-tokio 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/ultrasaurus/irc-tokio
[INFO] finished tweaking git repo https://github.com/ultrasaurus/irc-tokio
[INFO] tweaked toml for git repo https://github.com/ultrasaurus/irc-tokio written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ultrasaurus/irc-tokio 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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 144261af4995de026b016ba5a570943e347eaeb9f3cba2d33777e2708f261391
[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" "144261af4995de026b016ba5a570943e347eaeb9f3cba2d33777e2708f261391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "144261af4995de026b016ba5a570943e347eaeb9f3cba2d33777e2708f261391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "144261af4995de026b016ba5a570943e347eaeb9f3cba2d33777e2708f261391", kill_on_drop: false }`
[INFO] [stdout] 144261af4995de026b016ba5a570943e347eaeb9f3cba2d33777e2708f261391
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 053e118f16abd7a661df04a87a27c44dd5b1ad225cf1ebab86d069656959e7e7
[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" "053e118f16abd7a661df04a87a27c44dd5b1ad225cf1ebab86d069656959e7e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling bytes v0.5.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling irc-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.91s
[INFO] running `Command { std: "docker" "inspect" "053e118f16abd7a661df04a87a27c44dd5b1ad225cf1ebab86d069656959e7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053e118f16abd7a661df04a87a27c44dd5b1ad225cf1ebab86d069656959e7e7", kill_on_drop: false }`
[INFO] [stdout] 053e118f16abd7a661df04a87a27c44dd5b1ad225cf1ebab86d069656959e7e7
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] a8565d93072f9aac58470c54d149bdf525f7df37881f7998997066119082af6d
[INFO] running `Command { std: "docker" "start" "-a" "a8565d93072f9aac58470c54d149bdf525f7df37881f7998997066119082af6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-test v0.2.0
[INFO] [stderr]    Compiling irc-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `irc`
[INFO] [stdout]   --> examples/2b-session-struct.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let irc = Session::connect(addr, &irc_user, &irc_pass).await?;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_irc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 7.83s
[INFO] running `Command { std: "docker" "inspect" "a8565d93072f9aac58470c54d149bdf525f7df37881f7998997066119082af6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8565d93072f9aac58470c54d149bdf525f7df37881f7998997066119082af6d", kill_on_drop: false }`
[INFO] [stdout] a8565d93072f9aac58470c54d149bdf525f7df37881f7998997066119082af6d
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3ac09c8881491a8e6ff4c1801c83e69c7143e0ca96f4a724744b722d0b6b0fb
[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" "e3ac09c8881491a8e6ff4c1801c83e69c7143e0ca96f4a724744b722d0b6b0fb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `irc`
[INFO] [stdout] running 4 tests
[INFO] [stderr]   --> examples/2b-session-struct.rs:58:9
[INFO] [stdout] test message::test::test_string_too_long ... ok
[INFO] [stderr]    |
[INFO] [stdout] test message::test::test_missing_command ... ok
[INFO] [stderr] 58 |     let irc = Session::connect(addr, &irc_user, &irc_pass).await?;
[INFO] [stdout] test message::test::can_create_message ... ok
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_irc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/irc_tokio-59b28320d800aada
[INFO] [stdout] test can_create_protocol ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/irc_tokio-d8242787cc3fc341
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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]    Doc-tests irc-tokio
[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" "e3ac09c8881491a8e6ff4c1801c83e69c7143e0ca96f4a724744b722d0b6b0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3ac09c8881491a8e6ff4c1801c83e69c7143e0ca96f4a724744b722d0b6b0fb", kill_on_drop: false }`
[INFO] [stdout] e3ac09c8881491a8e6ff4c1801c83e69c7143e0ca96f4a724744b722d0b6b0fb