[INFO] fetching crate mytree 0.2.0...
[INFO] testing mytree-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mytree 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mytree 0.2.0
[INFO] finished tweaking crates.io crate mytree 0.2.0
[INFO] tweaked toml for crates.io crate mytree 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mytree 0.2.0 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] crate crates.io crate mytree 0.2.0 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-2025-09-21" "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] c777dc1b262f70cf31e62f30d4c94ef421c7eff44e65ba05391f0f718e05fb95
[INFO] running `Command { std: "docker" "start" "-a" "c777dc1b262f70cf31e62f30d4c94ef421c7eff44e65ba05391f0f718e05fb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c777dc1b262f70cf31e62f30d4c94ef421c7eff44e65ba05391f0f718e05fb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c777dc1b262f70cf31e62f30d4c94ef421c7eff44e65ba05391f0f718e05fb95", kill_on_drop: false }`
[INFO] [stdout] c777dc1b262f70cf31e62f30d4c94ef421c7eff44e65ba05391f0f718e05fb95
[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] f7a738bc44bdfc6c0d948196160b93417d953e13ffebb7577e56cef1e4cf7436
[INFO] running `Command { std: "docker" "start" "-a" "f7a738bc44bdfc6c0d948196160b93417d953e13ffebb7577e56cef1e4cf7436", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling clap_builder v4.5.38
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap v4.5.38
[INFO] [stderr]    Compiling clap-markdown v0.1.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling mytree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.95s
[INFO] running `Command { std: "docker" "inspect" "f7a738bc44bdfc6c0d948196160b93417d953e13ffebb7577e56cef1e4cf7436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a738bc44bdfc6c0d948196160b93417d953e13ffebb7577e56cef1e4cf7436", kill_on_drop: false }`
[INFO] [stdout] f7a738bc44bdfc6c0d948196160b93417d953e13ffebb7577e56cef1e4cf7436
[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] 085af74872e49b15eb1541c908c3664fe7e4eb2280ea2d6ca675d80481643a8c
[INFO] running `Command { std: "docker" "start" "-a" "085af74872e49b15eb1541c908c3664fe7e4eb2280ea2d6ca675d80481643a8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mytree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "085af74872e49b15eb1541c908c3664fe7e4eb2280ea2d6ca675d80481643a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085af74872e49b15eb1541c908c3664fe7e4eb2280ea2d6ca675d80481643a8c", kill_on_drop: false }`
[INFO] [stdout] 085af74872e49b15eb1541c908c3664fe7e4eb2280ea2d6ca675d80481643a8c
[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] b4f1a6640ae4d1e5ff9c210d210c10ab8139a88dc28f4a63827e6206c8ee6baa
[INFO] running `Command { std: "docker" "start" "-a" "b4f1a6640ae4d1e5ff9c210d210c10ab8139a88dc28f4a63827e6206c8ee6baa", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mytree-0462b000e5b75b0f)
[INFO] [stderr]      Running unittests src/bin/gendoc.rs (/opt/rustwide/target/debug/deps/gendoc-cae41638bded8f6c)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mytree-5ea5f723e60b97cd)
[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] [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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mytree
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "b4f1a6640ae4d1e5ff9c210d210c10ab8139a88dc28f4a63827e6206c8ee6baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f1a6640ae4d1e5ff9c210d210c10ab8139a88dc28f4a63827e6206c8ee6baa", kill_on_drop: false }`
[INFO] [stdout] b4f1a6640ae4d1e5ff9c210d210c10ab8139a88dc28f4a63827e6206c8ee6baa