[INFO] fetching crate mqtt-recorder-rs 1.2.1...
[INFO] checking mqtt-recorder-rs-1.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mqtt-recorder-rs 1.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mqtt-recorder-rs 1.2.1
[INFO] finished tweaking crates.io crate mqtt-recorder-rs 1.2.1
[INFO] tweaked toml for crates.io crate mqtt-recorder-rs 1.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqtt-recorder-rs 1.2.1 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 crates.io crate mqtt-recorder-rs 1.2.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fcd6a37e1de587c10fc2cfd038c11b782780ac6ca82a1e194c133a892f501bc6
[INFO] running `Command { std: "docker" "start" "-a" "fcd6a37e1de587c10fc2cfd038c11b782780ac6ca82a1e194c133a892f501bc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcd6a37e1de587c10fc2cfd038c11b782780ac6ca82a1e194c133a892f501bc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd6a37e1de587c10fc2cfd038c11b782780ac6ca82a1e194c133a892f501bc6", kill_on_drop: false }`
[INFO] [stdout] fcd6a37e1de587c10fc2cfd038c11b782780ac6ca82a1e194c133a892f501bc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f910dd7302550ea589279d842bc68befacc15bdfac4189d9e3216a356d3783cf
[INFO] running `Command { std: "docker" "start" "-a" "f910dd7302550ea589279d842bc68befacc15bdfac4189d9e3216a356d3783cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking mqttbytes v0.2.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking pollster v0.2.1
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking rumqttc v0.5.0
[INFO] [stderr]     Checking mqtt-recorder-rs v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(short, long, default_value = "localhost")]
[INFO] [stdout] 25 | |     address: 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:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     #[structopt(short, long, default_value = "#")]
[INFO] [stdout] 50 | |     // Topic to record, can be used multiple times for a set of topics
[INFO] [stdout] 51 | |     topic: Vec<String>,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt-recorder-rs` (bin "mqtt-recorder-rs") due to 2 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:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(short, long, default_value = "localhost")]
[INFO] [stdout] 25 | |     address: 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:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     #[structopt(short, long, default_value = "#")]
[INFO] [stdout] 50 | |     // Topic to record, can be used multiple times for a set of topics
[INFO] [stdout] 51 | |     topic: Vec<String>,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt-recorder-rs` (bin "mqtt-recorder-rs" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f910dd7302550ea589279d842bc68befacc15bdfac4189d9e3216a356d3783cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f910dd7302550ea589279d842bc68befacc15bdfac4189d9e3216a356d3783cf", kill_on_drop: false }`
[INFO] [stdout] f910dd7302550ea589279d842bc68befacc15bdfac4189d9e3216a356d3783cf