[INFO] fetching crate mpdnd 1.0.3...
[INFO] checking mpdnd-1.0.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mpdnd 1.0.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mpdnd 1.0.3
[INFO] finished tweaking crates.io crate mpdnd 1.0.3
[INFO] tweaked toml for crates.io crate mpdnd 1.0.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpdnd 1.0.3 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 mpdnd 1.0.3 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c48e9410a92f485a974309d67abd12dbab36bec8aafcc845349ea40227e0b062
[INFO] running `Command { std: "docker" "start" "-a" "c48e9410a92f485a974309d67abd12dbab36bec8aafcc845349ea40227e0b062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c48e9410a92f485a974309d67abd12dbab36bec8aafcc845349ea40227e0b062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c48e9410a92f485a974309d67abd12dbab36bec8aafcc845349ea40227e0b062", kill_on_drop: false }`
[INFO] [stdout] c48e9410a92f485a974309d67abd12dbab36bec8aafcc845349ea40227e0b062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0225cd3ec50f32cb2d32ec60bb4839d6259036568ba8cc0411fdfa25c38b7d1b
[INFO] running `Command { std: "docker" "start" "-a" "0225cd3ec50f32cb2d32ec60bb4839d6259036568ba8cc0411fdfa25c38b7d1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking mio v0.7.10
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking nb-connect v1.0.3
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.6.4
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking mpd_protocol v0.12.1
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking mpd_client v0.6.0
[INFO] [stderr]     Checking enumflags2 v0.6.4
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling zvariant_derive v2.6.0
[INFO] [stderr]    Compiling zbus_macros v1.8.0
[INFO] [stderr]     Checking zvariant v2.6.0
[INFO] [stderr]     Checking zbus v1.8.0
[INFO] [stderr]     Checking notify-rust v4.3.0
[INFO] [stderr]     Checking mpdnd v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(short, long, about = "Specify an alternate configuration file")]
[INFO] [stdout] 18 | |     pub config: Option<String>,
[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 `mpdnd` (bin "mpdnd") due to 1 previous error
[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:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(short, long, about = "Specify an alternate configuration file")]
[INFO] [stdout] 18 | |     pub config: Option<String>,
[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 `mpdnd` (bin "mpdnd" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0225cd3ec50f32cb2d32ec60bb4839d6259036568ba8cc0411fdfa25c38b7d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0225cd3ec50f32cb2d32ec60bb4839d6259036568ba8cc0411fdfa25c38b7d1b", kill_on_drop: false }`
[INFO] [stdout] 0225cd3ec50f32cb2d32ec60bb4839d6259036568ba8cc0411fdfa25c38b7d1b
