[INFO] fetching crate dsf-client 0.2.0...
[INFO] checking dsf-client-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dsf-client 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate dsf-client 0.2.0
[INFO] finished tweaking crates.io crate dsf-client 0.2.0
[INFO] tweaked toml for crates.io crate dsf-client 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dsf-client 0.2.0 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 dsf-client 0.2.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f1021d52efc196d78195547dd9129923356ac0070f2282cb18bd64e6283d4600
[INFO] running `Command { std: "docker" "start" "-a" "f1021d52efc196d78195547dd9129923356ac0070f2282cb18bd64e6283d4600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1021d52efc196d78195547dd9129923356ac0070f2282cb18bd64e6283d4600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1021d52efc196d78195547dd9129923356ac0070f2282cb18bd64e6283d4600", kill_on_drop: false }`
[INFO] [stdout] f1021d52efc196d78195547dd9129923356ac0070f2282cb18bd64e6283d4600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f8fd4910a945a027c40ff4e521b19ac351bff41f59668f20f1a3d06cb6deeaaa
[INFO] running `Command { std: "docker" "start" "-a" "f8fd4910a945a027c40ff4e521b19ac351bff41f59668f20f1a3d06cb6deeaaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
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[INFO] [stderr]     Checking dsf-core v0.2.0
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[INFO] [stderr]     Checking dsf-client v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `tx_handle` and `rx_handle` are never read
[INFO] [stdout]   --> src/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Client {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     tx_handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 64 |     rx_handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[structopt(
[INFO] [stdout] 34 | |         short = "d",
[INFO] [stdout] 35 | |         long = "daemon-socket",
[INFO] [stdout] 36 | |         default_value = "/var/run/dsfd/dsf.sock",
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     /// Specify the socket to bind the DSF daemon
[INFO] [stdout] 40 | |     pub daemon_socket: 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 `dsf-client` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `tx_handle` and `rx_handle` are never read
[INFO] [stdout]   --> src/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Client {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     tx_handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 64 |     rx_handle: JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/client.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[structopt(
[INFO] [stdout] 34 | |         short = "d",
[INFO] [stdout] 35 | |         long = "daemon-socket",
[INFO] [stdout] 36 | |         default_value = "/var/run/dsfd/dsf.sock",
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     /// Specify the socket to bind the DSF daemon
[INFO] [stdout] 40 | |     pub daemon_socket: 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 `dsf-client` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f8fd4910a945a027c40ff4e521b19ac351bff41f59668f20f1a3d06cb6deeaaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8fd4910a945a027c40ff4e521b19ac351bff41f59668f20f1a3d06cb6deeaaa", kill_on_drop: false }`
[INFO] [stdout] f8fd4910a945a027c40ff4e521b19ac351bff41f59668f20f1a3d06cb6deeaaa
