[INFO] fetching crate rscni 0.0.4...
[INFO] checking rscni-0.0.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rscni 0.0.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rscni 0.0.4
[INFO] finished tweaking crates.io crate rscni 0.0.4
[INFO] tweaked toml for crates.io crate rscni 0.0.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rscni 0.0.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding rstest v0.18.2 (available: v0.26.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 53391b44d4e6c0d1be540d812d0151b0e6cc7e0b77375113ba7de710aef5eef9
[INFO] running `Command { std: "docker" "start" "-a" "53391b44d4e6c0d1be540d812d0151b0e6cc7e0b77375113ba7de710aef5eef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53391b44d4e6c0d1be540d812d0151b0e6cc7e0b77375113ba7de710aef5eef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53391b44d4e6c0d1be540d812d0151b0e6cc7e0b77375113ba7de710aef5eef9", kill_on_drop: false }`
[INFO] [stdout] 53391b44d4e6c0d1be540d812d0151b0e6cc7e0b77375113ba7de710aef5eef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f9aedf750ef7588fd1e6decae26285f74d8e6232a18242113f2c654ee193ea7e
[INFO] running `Command { std: "docker" "start" "-a" "f9aedf750ef7588fd1e6decae26285f74d8e6232a18242113f2c654ee193ea7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking rscni v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `stderr` is never read
[INFO] [stdout]  --> src/util.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(super) struct IoTarget {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub(super) stderr: Box<dyn Write>,
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[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<PathBuf, Infallible>
[INFO] [stdout]    --> src/skel.rs:144:29
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let netns = PathBuf::from_str(&get_env(CNI_NETNS)?)
[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: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/skel.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         PathBuf::from_str(netns)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/skel.rs:215:29
[INFO] [stdout]     |
[INFO] [stdout] 215 |                 let netns = PathBuf::from_str(&get_env(CNI_NETNS)?)
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rscni` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f9aedf750ef7588fd1e6decae26285f74d8e6232a18242113f2c654ee193ea7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9aedf750ef7588fd1e6decae26285f74d8e6232a18242113f2c654ee193ea7e", kill_on_drop: false }`
[INFO] [stdout] f9aedf750ef7588fd1e6decae26285f74d8e6232a18242113f2c654ee193ea7e
