[INFO] fetching crate nahida 0.1.0...
[INFO] testing nahida-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate nahida 0.1.0 into /workspace/builds/worker-1-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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nahida 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 968efa79cdf034f06b7d2f2229d734ca0ac158179a9876a2bdb81dda884959d2
[INFO] running `Command { std: "docker" "start" "-a" "968efa79cdf034f06b7d2f2229d734ca0ac158179a9876a2bdb81dda884959d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "968efa79cdf034f06b7d2f2229d734ca0ac158179a9876a2bdb81dda884959d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968efa79cdf034f06b7d2f2229d734ca0ac158179a9876a2bdb81dda884959d2", kill_on_drop: false }`
[INFO] [stdout] 968efa79cdf034f06b7d2f2229d734ca0ac158179a9876a2bdb81dda884959d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22ec7c2cdef522bd34c39f8773324b1256289739580797f4cad1c1cce39a6053
[INFO] running `Command { std: "docker" "start" "-a" "22ec7c2cdef522bd34c39f8773324b1256289739580797f4cad1c1cce39a6053", 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)]` (part of `#[warn(unused)]`) 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 0.24s
[INFO] running `Command { std: "docker" "inspect" "22ec7c2cdef522bd34c39f8773324b1256289739580797f4cad1c1cce39a6053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ec7c2cdef522bd34c39f8773324b1256289739580797f4cad1c1cce39a6053", kill_on_drop: false }`
[INFO] [stdout] 22ec7c2cdef522bd34c39f8773324b1256289739580797f4cad1c1cce39a6053
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b9ee436c4ddff2b3de90abbd7318f0f9ce916c7f4afcf7aca7beebde7075605
[INFO] running `Command { std: "docker" "start" "-a" "0b9ee436c4ddff2b3de90abbd7318f0f9ce916c7f4afcf7aca7beebde7075605", 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)]` (part of `#[warn(unused)]`) 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 0.29s
[INFO] running `Command { std: "docker" "inspect" "0b9ee436c4ddff2b3de90abbd7318f0f9ce916c7f4afcf7aca7beebde7075605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9ee436c4ddff2b3de90abbd7318f0f9ce916c7f4afcf7aca7beebde7075605", kill_on_drop: false }`
[INFO] [stdout] 0b9ee436c4ddff2b3de90abbd7318f0f9ce916c7f4afcf7aca7beebde7075605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 063fd433c6d0a690bbe6f4aee6a78b0cae296e4c1d623242f1cdc098bb439ab1
[INFO] running `Command { std: "docker" "start" "-a" "063fd433c6d0a690bbe6f4aee6a78b0cae296e4c1d623242f1cdc098bb439ab1", kill_on_drop: false }`
[INFO] [stderr] warning: fields `left` and `right` are never read
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct Context<'a, T> {
[INFO] [stderr]    |        ------- fields in this struct
[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)]` (part of `#[warn(unused)]`) 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-26b7d1179149c372)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "063fd433c6d0a690bbe6f4aee6a78b0cae296e4c1d623242f1cdc098bb439ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063fd433c6d0a690bbe6f4aee6a78b0cae296e4c1d623242f1cdc098bb439ab1", kill_on_drop: false }`
[INFO] [stdout] 063fd433c6d0a690bbe6f4aee6a78b0cae296e4c1d623242f1cdc098bb439ab1