[INFO] fetching crate mqttrs 0.4.1...
[INFO] testing mqttrs-0.4.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate mqttrs 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mqttrs 0.4.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92fe99760712725ebbfeba9420bbeb6bc4a5a6d9624edd9aaf131896f3052ce2
[INFO] running `Command { std: "docker" "start" "-a" "92fe99760712725ebbfeba9420bbeb6bc4a5a6d9624edd9aaf131896f3052ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92fe99760712725ebbfeba9420bbeb6bc4a5a6d9624edd9aaf131896f3052ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92fe99760712725ebbfeba9420bbeb6bc4a5a6d9624edd9aaf131896f3052ce2", kill_on_drop: false }`
[INFO] [stdout] 92fe99760712725ebbfeba9420bbeb6bc4a5a6d9624edd9aaf131896f3052ce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49101ea5b913835669a7d320bbdc1670b1db16f970bd6cde569765075d90ad89
[INFO] running `Command { std: "docker" "start" "-a" "49101ea5b913835669a7d320bbdc1670b1db16f970bd6cde569765075d90ad89", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde v1.0.130
[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 mqttrs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.55s
[INFO] running `Command { std: "docker" "inspect" "49101ea5b913835669a7d320bbdc1670b1db16f970bd6cde569765075d90ad89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49101ea5b913835669a7d320bbdc1670b1db16f970bd6cde569765075d90ad89", kill_on_drop: false }`
[INFO] [stdout] 49101ea5b913835669a7d320bbdc1670b1db16f970bd6cde569765075d90ad89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacfc3388cbef1c3a87884a85c9e32f4ad11001e8366697318336dfdf87a8b7b
[INFO] running `Command { std: "docker" "start" "-a" "bacfc3388cbef1c3a87884a85c9e32f4ad11001e8366697318336dfdf87a8b7b", 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 ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[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 num-traits v0.2.14
[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 11.37s
[INFO] running `Command { std: "docker" "inspect" "bacfc3388cbef1c3a87884a85c9e32f4ad11001e8366697318336dfdf87a8b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacfc3388cbef1c3a87884a85c9e32f4ad11001e8366697318336dfdf87a8b7b", kill_on_drop: false }`
[INFO] [stdout] bacfc3388cbef1c3a87884a85c9e32f4ad11001e8366697318336dfdf87a8b7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2837ad6bc406528886bdf5d9c6556b4dce8a6ea3cf51eaaf4eae89c6fbebccc
[INFO] running `Command { std: "docker" "start" "-a" "b2837ad6bc406528886bdf5d9c6556b4dce8a6ea3cf51eaaf4eae89c6fbebccc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `bytes::BytesMut`
[INFO] [stdout] running 37 tests
[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 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mqttrs-205227b77a15b489)
[INFO] [stdout] test decoder_test::header_len ... ok
[INFO] [stdout] test decoder_test::inner_length_too_long ... 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_connect ... ok
[INFO] [stdout] test decoder_test::non_utf8_string ... ok
[INFO] [stdout] test decoder_test::test_pub_ack ... ok
[INFO] [stdout] test decoder_test::header_firstbyte ... ok
[INFO] [stdout] test decoder_test::test_connack ... ok
[INFO] [stdout] test decoder_test::test_ping_resp ... ok
[INFO] [stdout] test decoder_test::test_ping_req ... ok
[INFO] [stdout] test decoder_test::test_connect_wrong_version ... ok
[INFO] [stdout] test decoder_test::test_publish ... ignored
[INFO] [stdout] test decoder_test::test_pub_rel ... ok
[INFO] [stdout] test decoder_test::test_pub_comp ... ok
[INFO] [stdout] test decoder_test::test_pub_rec ... ok
[INFO] [stdout] test decoder_test::test_disconnect ... ok
[INFO] [stdout] test decoder_test::test_unsub_ack ... ok
[INFO] [stdout] test decoder_test::test_unsubscribe ... ok
[INFO] [stdout] test decoder_test::test_suback ... ok
[INFO] [stdout] test encoder_test::test_connack ... ok
[INFO] [stdout] test encoder_test::test_connect ... ok
[INFO] [stdout] test decoder_test::test_subscribe ... ok
[INFO] [stdout] test encoder_test::test_ping_resp ... ok
[INFO] [stdout] test encoder_test::test_puback ... ok
[INFO] [stdout] test encoder_test::test_ping_req ... ok
[INFO] [stdout] test encoder_test::test_disconnect ... 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 utils::test::pid_add_sub ... ok
[INFO] [stdout] test encoder_test::test_write_zero ... ok
[INFO] [stdout] test encoder_test::test_subscribe ... ok
[INFO] [stdout] test encoder_test::test_suback ... ok
[INFO] [stdout] test encoder_test::test_unsubscribe ... ok
[INFO] [stdout] test encoder_test::test_unsuback ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.05s
[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/packet.rs - packet::Packet (line 8) ... ok
[INFO] [stdout] test src/decoder.rs - decoder::decode_slice (line 33) ... ok
[INFO] [stdout] test src/encoder.rs - encoder::encode_slice (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b2837ad6bc406528886bdf5d9c6556b4dce8a6ea3cf51eaaf4eae89c6fbebccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2837ad6bc406528886bdf5d9c6556b4dce8a6ea3cf51eaaf4eae89c6fbebccc", kill_on_drop: false }`
[INFO] [stdout] b2837ad6bc406528886bdf5d9c6556b4dce8a6ea3cf51eaaf4eae89c6fbebccc