[INFO] cloning repository https://github.com/nullren/kafka-tailer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nullren/kafka-tailer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnullren%2Fkafka-tailer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnullren%2Fkafka-tailer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f15fc3327a733c52b95b4b4f414764a2001f8224
[INFO] checking nullren/kafka-tailer against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnullren%2Fkafka-tailer" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nullren/kafka-tailer
[INFO] finished tweaking git repo https://github.com/nullren/kafka-tailer
[INFO] tweaked toml for git repo https://github.com/nullren/kafka-tailer written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nullren/kafka-tailer on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nullren/kafka-tailer 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4c3086932307ce010c50ca778afa3fceb1cbe064e8b182d87dd8adc0d147489
[INFO] running `Command { std: "docker" "start" "-a" "a4c3086932307ce010c50ca778afa3fceb1cbe064e8b182d87dd8adc0d147489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4c3086932307ce010c50ca778afa3fceb1cbe064e8b182d87dd8adc0d147489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4c3086932307ce010c50ca778afa3fceb1cbe064e8b182d87dd8adc0d147489", kill_on_drop: false }`
[INFO] [stdout] a4c3086932307ce010c50ca778afa3fceb1cbe064e8b182d87dd8adc0d147489
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72202f8672a77d0b5281760c8086dbbadf1d675c71885ab45a301fc19e030d34
[INFO] running `Command { std: "docker" "start" "-a" "72202f8672a77d0b5281760c8086dbbadf1d675c71885ab45a301fc19e030d34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling openssl v0.10.48
[INFO] [stderr]    Compiling openssl-sys v0.9.83
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling snap v1.0.5
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking hashbrown v0.12.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling kafka v0.9.0
[INFO] [stderr]     Checking ref_slice v1.2.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking clap v3.2.12
[INFO] [stderr]     Checking kafka-tailer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub brokers: Vec<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub topic: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub group: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kafka-tailer` (bin "kafka-tailer" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub brokers: Vec<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub topic: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub group: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kafka-tailer` (bin "kafka-tailer") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "72202f8672a77d0b5281760c8086dbbadf1d675c71885ab45a301fc19e030d34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72202f8672a77d0b5281760c8086dbbadf1d675c71885ab45a301fc19e030d34", kill_on_drop: false }`
[INFO] [stdout] 72202f8672a77d0b5281760c8086dbbadf1d675c71885ab45a301fc19e030d34