[INFO] fetching crate franz 0.7.5...
[INFO] checking franz-0.7.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate franz 0.7.5 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate franz 0.7.5
[INFO] finished tweaking crates.io crate franz 0.7.5
[INFO] tweaked toml for crates.io crate franz 0.7.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate franz 0.7.5 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 franz 0.7.5 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] 0b020b2bd1c292e0da41abea6ad76e174b21f33182d4e637f20696a5e463df94
[INFO] running `Command { std: "docker" "start" "-a" "0b020b2bd1c292e0da41abea6ad76e174b21f33182d4e637f20696a5e463df94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b020b2bd1c292e0da41abea6ad76e174b21f33182d4e637f20696a5e463df94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b020b2bd1c292e0da41abea6ad76e174b21f33182d4e637f20696a5e463df94", kill_on_drop: false }`
[INFO] [stdout] 0b020b2bd1c292e0da41abea6ad76e174b21f33182d4e637f20696a5e463df94
[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] 33b8bbdee4c4a5502d0128d6e309fcc922669fa6a9873a64ee5aae0ed95b2ccf
[INFO] running `Command { std: "docker" "start" "-a" "33b8bbdee4c4a5502d0128d6e309fcc922669fa6a9873a64ee5aae0ed95b2ccf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking const-str v0.5.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking clap_builder v4.5.20
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking linux-futex v1.0.0
[INFO] [stderr]     Checking nix v0.29.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking mmapcell v0.1.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking disk-mpmc v0.4.2
[INFO] [stderr]     Checking tokio-stream v0.1.16
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking ctrlc v3.4.5
[INFO] [stderr]     Checking tokio-scoped v0.2.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking clap v4.5.20
[INFO] [stderr]     Checking franz v0.7.5 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `franz` (lib test) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/protocol.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |               topic: handshake
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 112 | |                 .get("topic")
[INFO] [stdout] 113 | |                 .ok_or(HandshakeError::ExpectedKey("topic"))?
[INFO] [stdout] 114 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/protocol.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |               topic: handshake
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 112 | |                 .get("topic")
[INFO] [stdout] 113 | |                 .ok_or(HandshakeError::ExpectedKey("topic"))?
[INFO] [stdout] 114 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `franz` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "33b8bbdee4c4a5502d0128d6e309fcc922669fa6a9873a64ee5aae0ed95b2ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b8bbdee4c4a5502d0128d6e309fcc922669fa6a9873a64ee5aae0ed95b2ccf", kill_on_drop: false }`
[INFO] [stdout] 33b8bbdee4c4a5502d0128d6e309fcc922669fa6a9873a64ee5aae0ed95b2ccf