[INFO] fetching crate zehn 0.1.1...
[INFO] testing zehn-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate zehn 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate zehn 0.1.1
[INFO] finished tweaking crates.io crate zehn 0.1.1
[INFO] tweaked toml for crates.io crate zehn 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zehn 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05ebce46f786c5c1c842b7ff852a043e37c9eb7d2b74fb2b85ff46f7e2651188
[INFO] running `Command { std: "docker" "start" "-a" "05ebce46f786c5c1c842b7ff852a043e37c9eb7d2b74fb2b85ff46f7e2651188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05ebce46f786c5c1c842b7ff852a043e37c9eb7d2b74fb2b85ff46f7e2651188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ebce46f786c5c1c842b7ff852a043e37c9eb7d2b74fb2b85ff46f7e2651188", kill_on_drop: false }`
[INFO] [stdout] 05ebce46f786c5c1c842b7ff852a043e37c9eb7d2b74fb2b85ff46f7e2651188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7fc78216ee38df450b50fa58a2c15e0c62d690cb933358275d8bdc1661588d0
[INFO] running `Command { std: "docker" "start" "-a" "f7fc78216ee38df450b50fa58a2c15e0c62d690cb933358275d8bdc1661588d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling zehn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "f7fc78216ee38df450b50fa58a2c15e0c62d690cb933358275d8bdc1661588d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fc78216ee38df450b50fa58a2c15e0c62d690cb933358275d8bdc1661588d0", kill_on_drop: false }`
[INFO] [stdout] f7fc78216ee38df450b50fa58a2c15e0c62d690cb933358275d8bdc1661588d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 498d1bdd0b1400f0878466753e43efdd0ea23f3b11178b0288313f458d6f9eb5
[INFO] running `Command { std: "docker" "start" "-a" "498d1bdd0b1400f0878466753e43efdd0ea23f3b11178b0288313f458d6f9eb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling zehn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "498d1bdd0b1400f0878466753e43efdd0ea23f3b11178b0288313f458d6f9eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498d1bdd0b1400f0878466753e43efdd0ea23f3b11178b0288313f458d6f9eb5", kill_on_drop: false }`
[INFO] [stdout] 498d1bdd0b1400f0878466753e43efdd0ea23f3b11178b0288313f458d6f9eb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9e6c3d38ef62c1e2fb743c2ffdde8d75c0150893f0ac70114866259300b2484
[INFO] running `Command { std: "docker" "start" "-a" "c9e6c3d38ef62c1e2fb743c2ffdde8d75c0150893f0ac70114866259300b2484", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/io.rs:200:17
[INFO] [stderr]     |
[INFO] [stderr] 200 |             let name = &body.read_cstr()?;
[INFO] [stderr]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `SeekExt` is never used
[INFO] [stderr]   --> src/util.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub trait SeekExt {
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `zehn` (lib) generated 2 warnings
[INFO] [stderr] warning: `zehn` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zehn-89adac0d8705a801)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_elf_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zehn
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/io.rs - io::Header::write (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9e6c3d38ef62c1e2fb743c2ffdde8d75c0150893f0ac70114866259300b2484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e6c3d38ef62c1e2fb743c2ffdde8d75c0150893f0ac70114866259300b2484", kill_on_drop: false }`
[INFO] [stdout] c9e6c3d38ef62c1e2fb743c2ffdde8d75c0150893f0ac70114866259300b2484