[INFO] fetching crate tinymqtt 0.1.3...
[INFO] testing tinymqtt-0.1.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate tinymqtt 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate tinymqtt 0.1.3
[INFO] finished tweaking crates.io crate tinymqtt 0.1.3
[INFO] tweaked toml for crates.io crate tinymqtt 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tinymqtt 0.1.3 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tinymqtt 0.1.3 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.84
[INFO] [stderr]   Downloaded syn v2.0.66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1a9d8320b35c59e126a3a4b51feeff22e0ba261eb9cfb75c34f0daae113f57d
[INFO] running `Command { std: "docker" "start" "-a" "b1a9d8320b35c59e126a3a4b51feeff22e0ba261eb9cfb75c34f0daae113f57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1a9d8320b35c59e126a3a4b51feeff22e0ba261eb9cfb75c34f0daae113f57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1a9d8320b35c59e126a3a4b51feeff22e0ba261eb9cfb75c34f0daae113f57d", kill_on_drop: false }`
[INFO] [stdout] b1a9d8320b35c59e126a3a4b51feeff22e0ba261eb9cfb75c34f0daae113f57d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0523d75f9b427a3e8606868eb7944ec3b8670be546f846934f3cef770c01951e
[INFO] running `Command { std: "docker" "start" "-a" "0523d75f9b427a3e8606868eb7944ec3b8670be546f846934f3cef770c01951e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling tinymqtt v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "0523d75f9b427a3e8606868eb7944ec3b8670be546f846934f3cef770c01951e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0523d75f9b427a3e8606868eb7944ec3b8670be546f846934f3cef770c01951e", kill_on_drop: false }`
[INFO] [stdout] 0523d75f9b427a3e8606868eb7944ec3b8670be546f846934f3cef770c01951e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53ff0c324913dc1a8d96ccf9a7e1898242fec22386b8e85aa2c82576d4eac232
[INFO] running `Command { std: "docker" "start" "-a" "53ff0c324913dc1a8d96ccf9a7e1898242fec22386b8e85aa2c82576d4eac232", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinymqtt v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> examples/example.rs:36:48
[INFO] [stdout]    |
[INFO] [stdout] 36 |             .receive_packet(&rx_bytes[..len], |client, topic, data| {
[INFO] [stdout]    |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> examples/example.rs:20:44
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .receive_packet(&rx_bytes[..len], |client, topic, data| {
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "53ff0c324913dc1a8d96ccf9a7e1898242fec22386b8e85aa2c82576d4eac232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ff0c324913dc1a8d96ccf9a7e1898242fec22386b8e85aa2c82576d4eac232", kill_on_drop: false }`
[INFO] [stdout] 53ff0c324913dc1a8d96ccf9a7e1898242fec22386b8e85aa2c82576d4eac232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1cb275bf7e53e4eab6463f889673aa1e9225ad9e888926780c0ce787b7071ba9
[INFO] running `Command { std: "docker" "start" "-a" "1cb275bf7e53e4eab6463f889673aa1e9225ad9e888926780c0ce787b7071ba9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> examples/example.rs:36:48
[INFO] [stderr]    |
[INFO] [stderr] 36 |             .receive_packet(&rx_bytes[..len], |client, topic, data| {
[INFO] [stderr]    |                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> examples/example.rs:20:44
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .receive_packet(&rx_bytes[..len], |client, topic, data| {
[INFO] [stderr]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stderr] 
[INFO] [stderr] warning: `tinymqtt` (example "example") generated 2 warnings (run `cargo fix --example "example" -p tinymqtt` 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/tinymqtt-abeabba56cc1cd61)
[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] [stderr]    Doc-tests tinymqtt
[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" "1cb275bf7e53e4eab6463f889673aa1e9225ad9e888926780c0ce787b7071ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb275bf7e53e4eab6463f889673aa1e9225ad9e888926780c0ce787b7071ba9", kill_on_drop: false }`
[INFO] [stdout] 1cb275bf7e53e4eab6463f889673aa1e9225ad9e888926780c0ce787b7071ba9