[INFO] fetching crate complexity 0.2.0... [INFO] checking complexity-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate complexity 0.2.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate complexity 0.2.0 [INFO] finished tweaking crates.io crate complexity 0.2.0 [INFO] tweaked toml for crates.io crate complexity 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate complexity 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 complexity 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] faa5a25b2921227ddfcfb3c9494beefb7b96e90414dfafff2c6c305adbab1b91 [INFO] running `Command { std: "docker" "start" "-a" "faa5a25b2921227ddfcfb3c9494beefb7b96e90414dfafff2c6c305adbab1b91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "faa5a25b2921227ddfcfb3c9494beefb7b96e90414dfafff2c6c305adbab1b91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "faa5a25b2921227ddfcfb3c9494beefb7b96e90414dfafff2c6c305adbab1b91", kill_on_drop: false }` [INFO] [stdout] faa5a25b2921227ddfcfb3c9494beefb7b96e90414dfafff2c6c305adbab1b91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1f320ff90ba5156b64c1cd48d92d413cd1e66561fe15b7e43eff3591657ffcbe [INFO] running `Command { std: "docker" "start" "-a" "1f320ff90ba5156b64c1cd48d92d413cd1e66561fe15b7e43eff3591657ffcbe", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Checking unicode-xid v0.2.0 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling anyhow v1.0.28 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking tabular v0.1.4 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking complexity v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> examples/lint-files.rs:112:5 [INFO] [stdout] | [INFO] [stdout] 112 | / /// One or more files to calculate cognitive complexity for. [INFO] [stdout] 113 | | #[structopt(name = "PATH")] [INFO] [stdout] 114 | | paths: Vec, [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 `complexity` (example "lint-files") due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "1f320ff90ba5156b64c1cd48d92d413cd1e66561fe15b7e43eff3591657ffcbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f320ff90ba5156b64c1cd48d92d413cd1e66561fe15b7e43eff3591657ffcbe", kill_on_drop: false }` [INFO] [stdout] 1f320ff90ba5156b64c1cd48d92d413cd1e66561fe15b7e43eff3591657ffcbe