[INFO] fetching crate mqttrs 0.4.1...
[INFO] testing mqttrs-0.4.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate mqttrs 0.4.1 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate mqttrs 0.4.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqttrs 0.4.1
[INFO] finished tweaking crates.io crate mqttrs 0.4.1
[INFO] tweaked toml for crates.io crate mqttrs 0.4.1 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 129bea558fdff5da38170ded494c7a8d08e7024c9cc830521aadd056b8a3c7c7
[INFO] running `Command { std: "docker" "start" "-a" "129bea558fdff5da38170ded494c7a8d08e7024c9cc830521aadd056b8a3c7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "129bea558fdff5da38170ded494c7a8d08e7024c9cc830521aadd056b8a3c7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "129bea558fdff5da38170ded494c7a8d08e7024c9cc830521aadd056b8a3c7c7", kill_on_drop: false }`
[INFO] [stdout] 129bea558fdff5da38170ded494c7a8d08e7024c9cc830521aadd056b8a3c7c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efbd5f4bd64b752c7217aa35184da1b5bbd3ef9180145738af86d98c81b22c3a
[INFO] running `Command { std: "docker" "start" "-a" "efbd5f4bd64b752c7217aa35184da1b5bbd3ef9180145738af86d98c81b22c3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling heapless v0.7.8
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling mqttrs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.41s
[INFO] running `Command { std: "docker" "inspect" "efbd5f4bd64b752c7217aa35184da1b5bbd3ef9180145738af86d98c81b22c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efbd5f4bd64b752c7217aa35184da1b5bbd3ef9180145738af86d98c81b22c3a", kill_on_drop: false }`
[INFO] [stdout] efbd5f4bd64b752c7217aa35184da1b5bbd3ef9180145738af86d98c81b22c3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61b07a315b729db11e2be03590d596cb47eaa5590accb55363676f2d7f0f81f7
[INFO] running `Command { std: "docker" "start" "-a" "61b07a315b729db11e2be03590d596cb47eaa5590accb55363676f2d7f0f81f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling mqttrs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bytes::BytesMut`
[INFO] [stdout]  --> src/encoder_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bytes::BytesMut;
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.04s
[INFO] running `Command { std: "docker" "inspect" "61b07a315b729db11e2be03590d596cb47eaa5590accb55363676f2d7f0f81f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b07a315b729db11e2be03590d596cb47eaa5590accb55363676f2d7f0f81f7", kill_on_drop: false }`
[INFO] [stdout] 61b07a315b729db11e2be03590d596cb47eaa5590accb55363676f2d7f0f81f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d481366882ef6f8e93a4f2f2c07beaab732701b5e94ec1403a44cc3a41b4cfd
[INFO] running `Command { std: "docker" "start" "-a" "4d481366882ef6f8e93a4f2f2c07beaab732701b5e94ec1403a44cc3a41b4cfd", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `bytes::BytesMut`
[INFO] [stderr]  --> src/encoder_test.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use bytes::BytesMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mqttrs` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mqttrs-c0097e5f53509213)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test decoder_test::inner_length_too_long ... ok
[INFO] [stdout] test decoder_test::header_firstbyte ... ok
[INFO] [stdout] test decoder_test::test_connack ... ok
[INFO] [stdout] test decoder_test::test_connect ... ok
[INFO] [stdout] test decoder_test::non_utf8_string ... ok
[INFO] [stdout] test decoder_test::header_len ... ok
[INFO] [stdout] test decoder_test::test_connect_wrong_version ... ok
[INFO] [stdout] test decoder_test::test_disconnect ... ok
[INFO] [stdout] test decoder_test::test_offset_start ... ignored
[INFO] [stdout] test decoder_test::test_half_connect ... ok
[INFO] [stdout] test decoder_test::test_ping_req ... ok
[INFO] [stdout] test decoder_test::test_ping_resp ... ok
[INFO] [stdout] test decoder_test::test_pub_comp ... ok
[INFO] [stdout] test decoder_test::test_pub_ack ... ok
[INFO] [stdout] test decoder_test::test_pub_rec ... ok
[INFO] [stdout] test decoder_test::test_publish ... ignored
[INFO] [stdout] test decoder_test::test_pub_rel ... ok
[INFO] [stdout] test decoder_test::test_suback ... ok
[INFO] [stdout] test decoder_test::test_subscribe ... ok
[INFO] [stdout] test decoder_test::test_unsub_ack ... ok
[INFO] [stdout] test decoder_test::test_unsubscribe ... ok
[INFO] [stdout] test encoder_test::test_connack ... ok
[INFO] [stdout] test encoder_test::test_disconnect ... ok
[INFO] [stdout] test encoder_test::test_connect ... ok
[INFO] [stdout] test encoder_test::test_ping_req ... ok
[INFO] [stdout] test encoder_test::test_ping_resp ... ok
[INFO] [stdout] test encoder_test::test_puback ... ok
[INFO] [stdout] test encoder_test::test_pubcomp ... ok
[INFO] [stdout] test encoder_test::test_publish ... ok
[INFO] [stdout] test encoder_test::test_pubrec ... ok
[INFO] [stdout] test encoder_test::test_pubrel ... ok
[INFO] [stdout] test encoder_test::test_suback ... ok
[INFO] [stdout] test encoder_test::test_subscribe ... ok
[INFO] [stdout] test encoder_test::test_unsuback ... ok
[INFO] [stdout] test encoder_test::test_unsubscribe ... ok
[INFO] [stdout] test encoder_test::test_write_zero ... ok
[INFO] [stdout] test utils::test::pid_add_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mqttrs
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/utils.rs - utils::Pid (line 85) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/packet.rs - packet::Packet (line 8) ... ok
[INFO] [stdout] test src/encoder.rs - encoder::encode_slice (line 5) ... ok
[INFO] [stdout] test src/decoder.rs - decoder::decode_slice (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d481366882ef6f8e93a4f2f2c07beaab732701b5e94ec1403a44cc3a41b4cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d481366882ef6f8e93a4f2f2c07beaab732701b5e94ec1403a44cc3a41b4cfd", kill_on_drop: false }`
[INFO] [stdout] 4d481366882ef6f8e93a4f2f2c07beaab732701b5e94ec1403a44cc3a41b4cfd