[INFO] fetching crate mqtt-v5 0.1.1...
[INFO] checking mqtt-v5-0.1.1 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate mqtt-v5 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mqtt-v5 0.1.1 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqtt-v5 0.1.1
[INFO] finished tweaking crates.io crate mqtt-v5 0.1.1
[INFO] tweaked toml for crates.io crate mqtt-v5 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", 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] dce5f4ea785283c58be605e7b6745b011ebdb3e327ba1a00a680afd607e7ff0c
[INFO] running `Command { std: "docker" "start" "-a" "dce5f4ea785283c58be605e7b6745b011ebdb3e327ba1a00a680afd607e7ff0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce5f4ea785283c58be605e7b6745b011ebdb3e327ba1a00a680afd607e7ff0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce5f4ea785283c58be605e7b6745b011ebdb3e327ba1a00a680afd607e7ff0c", kill_on_drop: false }`
[INFO] [stdout] dce5f4ea785283c58be605e7b6745b011ebdb3e327ba1a00a680afd607e7ff0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50db4ce669ae00af09725262d6bd71882c1e647eace4a3a37a0f8b12a2a5ceae
[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" "50db4ce669ae00af09725262d6bd71882c1e647eace4a3a37a0f8b12a2a5ceae", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking websocket-codec v0.3.5
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking mqtt-v5 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/decoder.rs:1179:36
[INFO] [stdout]      |
[INFO] [stdout] 1179 |                 Err(err) => panic!(err),
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1179 |                 Err(err) => panic!("{}", err),
[INFO] [stdout]      |                                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1179 |                 Err(err) => std::panic::panic_any(err),
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.91s
[INFO] running `Command { std: "docker" "inspect" "50db4ce669ae00af09725262d6bd71882c1e647eace4a3a37a0f8b12a2a5ceae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50db4ce669ae00af09725262d6bd71882c1e647eace4a3a37a0f8b12a2a5ceae", kill_on_drop: false }`
[INFO] [stdout] 50db4ce669ae00af09725262d6bd71882c1e647eace4a3a37a0f8b12a2a5ceae