[INFO] fetching crate caravan 0.1.0... [INFO] checking caravan-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate caravan 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate caravan 0.1.0 [INFO] finished tweaking crates.io crate caravan 0.1.0 [INFO] tweaked toml for crates.io crate caravan 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate caravan 0.1.0 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 caravan 0.1.0 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] b0b55eebfe1a49e1a48227959e7b9a5920103fcba572efdc96b6ca4aed9961af [INFO] running `Command { std: "docker" "start" "-a" "b0b55eebfe1a49e1a48227959e7b9a5920103fcba572efdc96b6ca4aed9961af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b0b55eebfe1a49e1a48227959e7b9a5920103fcba572efdc96b6ca4aed9961af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0b55eebfe1a49e1a48227959e7b9a5920103fcba572efdc96b6ca4aed9961af", kill_on_drop: false }` [INFO] [stdout] b0b55eebfe1a49e1a48227959e7b9a5920103fcba572efdc96b6ca4aed9961af [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] 8221cd5ae1dfce9c4a6fe218e3f160c04df714c54c669ab92392de742d17814c [INFO] running `Command { std: "docker" "start" "-a" "8221cd5ae1dfce9c4a6fe218e3f160c04df714c54c669ab92392de742d17814c", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.21 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling quote v1.0.5 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling thiserror-impl v1.0.18 [INFO] [stderr] Compiling derive_more v0.99.7 [INFO] [stderr] Checking thiserror v1.0.18 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stderr] Checking caravan v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `debug`, `config_file`, and `prefix` are never read [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | struct Options { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | debug: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | config_file: Option, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | prefix: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Options` 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] warning: field `package` is never read [INFO] [stdout] --> src/main.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 41 | Install { [INFO] [stdout] | ------- field in this variant [INFO] [stdout] ... [INFO] [stdout] 44 | package: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | / /// URI of the package [INFO] [stdout] 43 | | #[structopt(name = "PACKAGE")] [INFO] [stdout] 44 | | package: 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: std::result::Result [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | / /// URI of the repository [INFO] [stdout] 51 | | #[structopt(name = "REPOSITORY")] [INFO] [stdout] 52 | | repository: String, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `caravan` (bin "caravan") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `debug`, `config_file`, and `prefix` are never read [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | struct Options { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | debug: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | config_file: Option, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | prefix: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Options` 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] warning: field `package` is never read [INFO] [stdout] --> src/main.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 41 | Install { [INFO] [stdout] | ------- field in this variant [INFO] [stdout] ... [INFO] [stdout] 44 | package: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | / /// URI of the package [INFO] [stdout] 43 | | #[structopt(name = "PACKAGE")] [INFO] [stdout] 44 | | package: 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: std::result::Result [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | / /// URI of the repository [INFO] [stdout] 51 | | #[structopt(name = "REPOSITORY")] [INFO] [stdout] 52 | | repository: String, [INFO] [stdout] | |__________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `caravan` (bin "caravan" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "8221cd5ae1dfce9c4a6fe218e3f160c04df714c54c669ab92392de742d17814c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8221cd5ae1dfce9c4a6fe218e3f160c04df714c54c669ab92392de742d17814c", kill_on_drop: false }` [INFO] [stdout] 8221cd5ae1dfce9c4a6fe218e3f160c04df714c54c669ab92392de742d17814c