[INFO] fetching crate petbox 0.1.0...
[INFO] testing petbox-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate petbox 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate petbox 0.1.0
[INFO] finished tweaking crates.io crate petbox 0.1.0
[INFO] tweaked toml for crates.io crate petbox 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate petbox 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate petbox 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" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7666086dc8ad6ae7dbf85e1e98837e323a2cb8054070931761cc3f8da124cd3a
[INFO] running `Command { std: "docker" "start" "-a" "7666086dc8ad6ae7dbf85e1e98837e323a2cb8054070931761cc3f8da124cd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7666086dc8ad6ae7dbf85e1e98837e323a2cb8054070931761cc3f8da124cd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7666086dc8ad6ae7dbf85e1e98837e323a2cb8054070931761cc3f8da124cd3a", kill_on_drop: false }`
[INFO] [stdout] 7666086dc8ad6ae7dbf85e1e98837e323a2cb8054070931761cc3f8da124cd3a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c147a9572ac589f094fec8df164f72cd1ef4edb5440d95055f6d2f9e9aeebda2
[INFO] running `Command { std: "docker" "start" "-a" "c147a9572ac589f094fec8df164f72cd1ef4edb5440d95055f6d2f9e9aeebda2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling xdg v2.5.0
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling clap_builder v4.3.11
[INFO] [stderr]    Compiling nix v0.20.2
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling clap_derive v4.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]    Compiling unshare_petbox v0.7.1
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling clap v4.3.11
[INFO] [stderr]    Compiling petbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/bin/petbox.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         Commands::Attach(opt) => {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/petbox.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 true => {root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 true => {let _ = root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stdout]    |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/petbox.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 false => {root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 false => {let _ = root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stdout]    |                           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "c147a9572ac589f094fec8df164f72cd1ef4edb5440d95055f6d2f9e9aeebda2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c147a9572ac589f094fec8df164f72cd1ef4edb5440d95055f6d2f9e9aeebda2", kill_on_drop: false }`
[INFO] [stdout] c147a9572ac589f094fec8df164f72cd1ef4edb5440d95055f6d2f9e9aeebda2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0673620a0f1ffeb6114cc1fc4b0fd18eb7b9a4234c439e0b3c05d82638af72c3
[INFO] running `Command { std: "docker" "start" "-a" "0673620a0f1ffeb6114cc1fc4b0fd18eb7b9a4234c439e0b3c05d82638af72c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling petbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/bin/petbox.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         Commands::Attach(opt) => {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/petbox.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 true => {root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 true => {let _ = root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stdout]    |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/petbox.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 false => {root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 false => {let _ = root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stdout]    |                           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "0673620a0f1ffeb6114cc1fc4b0fd18eb7b9a4234c439e0b3c05d82638af72c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0673620a0f1ffeb6114cc1fc4b0fd18eb7b9a4234c439e0b3c05d82638af72c3", kill_on_drop: false }`
[INFO] [stdout] 0673620a0f1ffeb6114cc1fc4b0fd18eb7b9a4234c439e0b3c05d82638af72c3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e75ab843abec10dffce25cd1f8086345d50dd81ce3560d8736c83b1457473e58
[INFO] running `Command { std: "docker" "start" "-a" "e75ab843abec10dffce25cd1f8086345d50dd81ce3560d8736c83b1457473e58", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]   --> src/bin/petbox.rs:95:26
[INFO] [stderr]    |
[INFO] [stderr] 95 |         Commands::Attach(opt) => {
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/petbox.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 true => {root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 true => {let _ = root.install_rootfs_enter_ns("/bin/bash");},
[INFO] [stderr]    |                          +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/petbox.rs:92:27
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 false => {root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 false => {let _ = root.install_rootfs_from_tar(Path::new(&opt.source));},
[INFO] [stderr]    |                           +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `petbox` (bin "petbox" test) generated 3 warnings (run `cargo fix --bin "petbox" -p petbox --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/petbox-ebfe65e80b18f434)
[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] [stderr]      Running unittests src/bin/petbox.rs (/opt/rustwide/target/debug/deps/petbox-2e10063313296562)
[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] [stderr]    Doc-tests petbox
[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" "e75ab843abec10dffce25cd1f8086345d50dd81ce3560d8736c83b1457473e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e75ab843abec10dffce25cd1f8086345d50dd81ce3560d8736c83b1457473e58", kill_on_drop: false }`
[INFO] [stdout] e75ab843abec10dffce25cd1f8086345d50dd81ce3560d8736c83b1457473e58