[INFO] fetching crate rumqtt 0.31.0...
[INFO] checking rumqtt-0.31.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate rumqtt 0.31.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate rumqtt 0.31.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rumqtt 0.31.0
[INFO] finished tweaking crates.io crate rumqtt 0.31.0
[INFO] tweaked toml for crates.io crate rumqtt 0.31.0 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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 mqtt311 v0.2.0
[INFO] [stderr]   Downloaded tokio-rustls v0.9.4
[INFO] [stderr]   Downloaded envy v0.3.3
[INFO] [stderr]   Downloaded sct v0.5.0
[INFO] [stderr]   Downloaded jsonwebtoken v6.0.1
[INFO] [stderr]   Downloaded rustls v0.15.2
[INFO] [stderr]   Downloaded webpki v0.19.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49362449f7ca6fa22965f6c3d0edd4f1e6ad4227a936cfe4d81eb29e7e8b8f64
[INFO] running `Command { std: "docker" "start" "-a" "49362449f7ca6fa22965f6c3d0edd4f1e6ad4227a936cfe4d81eb29e7e8b8f64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49362449f7ca6fa22965f6c3d0edd4f1e6ad4227a936cfe4d81eb29e7e8b8f64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49362449f7ca6fa22965f6c3d0edd4f1e6ad4227a936cfe4d81eb29e7e8b8f64", kill_on_drop: false }`
[INFO] [stdout] 49362449f7ca6fa22965f6c3d0edd4f1e6ad4227a936cfe4d81eb29e7e8b8f64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 168ee35f8a1627a5ce08fa08cbf488d64e3105a58841eafbb31f41d633d0cf93
[INFO] running `Command { std: "docker" "start" "-a" "168ee35f8a1627a5ce08fa08cbf488d64e3105a58841eafbb31f41d633d0cf93", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   log v0.4.14: std
[INFO] [stderr]   memchr v2.4.1: default, std
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking envy v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-rustls v0.9.4
[INFO] [stderr]     Checking mqtt311 v0.2.0
[INFO] [stderr]     Checking jsonwebtoken v6.0.1
[INFO] [stderr]     Checking rumqtt v0.31.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/shutdown.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/gcloud.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/reconnection.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/pubsub2.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/playpause.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/httpconnect.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/tls.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/select.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/keepalive.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/pubsub1.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/genproxyauth.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/client/connection.rs (1 fix)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.11s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rumqtt v0.31.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "168ee35f8a1627a5ce08fa08cbf488d64e3105a58841eafbb31f41d633d0cf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168ee35f8a1627a5ce08fa08cbf488d64e3105a58841eafbb31f41d633d0cf93", kill_on_drop: false }`
[INFO] [stdout] 168ee35f8a1627a5ce08fa08cbf488d64e3105a58841eafbb31f41d633d0cf93