[INFO] fetching crate nahida 0.1.0...
[INFO] testing nahida-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate nahida 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate nahida 0.1.0
[INFO] finished tweaking crates.io crate nahida 0.1.0
[INFO] tweaked toml for crates.io crate nahida 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nahida 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nahida 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 699f2479902dad6a80da7be7851347f56e54b095134816edb7e28815ad3f6a70
[INFO] running `Command { std: "docker" "start" "-a" "699f2479902dad6a80da7be7851347f56e54b095134816edb7e28815ad3f6a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699f2479902dad6a80da7be7851347f56e54b095134816edb7e28815ad3f6a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699f2479902dad6a80da7be7851347f56e54b095134816edb7e28815ad3f6a70", kill_on_drop: false }`
[INFO] [stdout] 699f2479902dad6a80da7be7851347f56e54b095134816edb7e28815ad3f6a70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33cb2b108a305adad493f831a59b1bfc55c31c8614b1565ea1c3fa27eeedf7b8
[INFO] running `Command { std: "docker" "start" "-a" "33cb2b108a305adad493f831a59b1bfc55c31c8614b1565ea1c3fa27eeedf7b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling nahida v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Context<'a, T> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     left: &'a [T],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     right: &'a [T],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Location<'a, T> {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 24 |     context: Context<'a, T>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Location` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "33cb2b108a305adad493f831a59b1bfc55c31c8614b1565ea1c3fa27eeedf7b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33cb2b108a305adad493f831a59b1bfc55c31c8614b1565ea1c3fa27eeedf7b8", kill_on_drop: false }`
[INFO] [stdout] 33cb2b108a305adad493f831a59b1bfc55c31c8614b1565ea1c3fa27eeedf7b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c1cd2242dea0a3ed0738ea3839ee3d99b6f0d8aff63a2d2be7cdf5c024cf8e0
[INFO] running `Command { std: "docker" "start" "-a" "6c1cd2242dea0a3ed0738ea3839ee3d99b6f0d8aff63a2d2be7cdf5c024cf8e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling nahida v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `left` and `right` are never read
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Context<'a, T> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     left: &'a [T],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     right: &'a [T],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Location<'a, T> {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 24 |     context: Context<'a, T>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Location` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "6c1cd2242dea0a3ed0738ea3839ee3d99b6f0d8aff63a2d2be7cdf5c024cf8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1cd2242dea0a3ed0738ea3839ee3d99b6f0d8aff63a2d2be7cdf5c024cf8e0", kill_on_drop: false }`
[INFO] [stdout] 6c1cd2242dea0a3ed0738ea3839ee3d99b6f0d8aff63a2d2be7cdf5c024cf8e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4035881943fd34cfc14610f150a8460e5962f4ab3b73d94468211dad278a6fd9
[INFO] running `Command { std: "docker" "start" "-a" "4035881943fd34cfc14610f150a8460e5962f4ab3b73d94468211dad278a6fd9", kill_on_drop: false }`
[INFO] [stderr] warning: fields `left` and `right` are never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 16 | struct Context<'a, T> {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |        ------- fields in this struct
[INFO] [stdout] 
[INFO] [stderr] 17 |     left: &'a [T],
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 18 |     right: &'a [T],
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `context` is never read
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct Location<'a, T> {
[INFO] [stderr]    |        -------- field in this struct
[INFO] [stderr] 24 |     context: Context<'a, T>,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Location` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `nahida` (bin "nahida" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nahida-e0131d542c1a23a9)
[INFO] running `Command { std: "docker" "inspect" "4035881943fd34cfc14610f150a8460e5962f4ab3b73d94468211dad278a6fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4035881943fd34cfc14610f150a8460e5962f4ab3b73d94468211dad278a6fd9", kill_on_drop: false }`
[INFO] [stdout] 4035881943fd34cfc14610f150a8460e5962f4ab3b73d94468211dad278a6fd9