[INFO] fetching crate rustlings 6.4.0...
[INFO] testing rustlings-6.4.0 against 1.86.0 for beta-1.87-1
[INFO] extracting crate rustlings 6.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rustlings 6.4.0 on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustlings 6.4.0
[INFO] finished tweaking crates.io crate rustlings 6.4.0
[INFO] tweaked toml for crates.io crate rustlings 6.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rustlings 6.4.0 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustlings-macros v6.4.0
[INFO] [stderr]   Downloaded notify-types v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f482cf01c19b46d50933023d56e407076156de22755421f0325b5879074cde68
[INFO] running `Command { std: "docker" "start" "-a" "f482cf01c19b46d50933023d56e407076156de22755421f0325b5879074cde68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f482cf01c19b46d50933023d56e407076156de22755421f0325b5879074cde68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f482cf01c19b46d50933023d56e407076156de22755421f0325b5879074cde68", kill_on_drop: false }`
[INFO] [stdout] f482cf01c19b46d50933023d56e407076156de22755421f0325b5879074cde68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dba5cadf4368ccdf6bd094c8bed2c241739494f097d6f53284f1e5c114001a1
[INFO] running `Command { std: "docker" "start" "-a" "6dba5cadf4368ccdf6bd094c8bed2c241739494f097d6f53284f1e5c114001a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling rustix v0.38.40
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling hashbrown v0.15.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling winnow v0.6.20
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling notify-types v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling os_pipe v1.2.1
[INFO] [stderr]    Compiling inotify v0.10.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling notify v7.0.0
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling rustlings-macros v6.4.0
[INFO] [stderr]    Compiling rustlings v6.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.77s
[INFO] running `Command { std: "docker" "inspect" "6dba5cadf4368ccdf6bd094c8bed2c241739494f097d6f53284f1e5c114001a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dba5cadf4368ccdf6bd094c8bed2c241739494f097d6f53284f1e5c114001a1", kill_on_drop: false }`
[INFO] [stdout] 6dba5cadf4368ccdf6bd094c8bed2c241739494f097d6f53284f1e5c114001a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0d02ab3df74c687274e7e75256afc965e3c9d2fa674162d08a6dd3935317862
[INFO] running `Command { std: "docker" "start" "-a" "a0d02ab3df74c687274e7e75256afc965e3c9d2fa674162d08a6dd3935317862", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling rustix v0.38.40
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling hashbrown v0.15.1
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling winnow v0.6.20
[INFO] [stderr]    Compiling notify-types v1.0.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling fastrand v2.2.0
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling os_pipe v1.2.1
[INFO] [stderr]    Compiling inotify v0.10.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling notify v7.0.0
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling rustlings-macros v6.4.0
[INFO] [stderr]    Compiling rustlings v6.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 23.55s
[INFO] running `Command { std: "docker" "inspect" "a0d02ab3df74c687274e7e75256afc965e3c9d2fa674162d08a6dd3935317862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d02ab3df74c687274e7e75256afc965e3c9d2fa674162d08a6dd3935317862", kill_on_drop: false }`
[INFO] [stdout] a0d02ab3df74c687274e7e75256afc965e3c9d2fa674162d08a6dd3935317862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 099d2c5ab1b7a83a3a660a16dddbd0b4dde81ce93129bfb254e78e7db504083e
[INFO] running `Command { std: "docker" "start" "-a" "099d2c5ab1b7a83a3a660a16dddbd0b4dde81ce93129bfb254e78e7db504083e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-1fcd882dca47f915)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test cargo_toml::tests::test_bins ... ok
[INFO] [stdout] test cargo_toml::tests::test_bins_start_end_ind ... ok
[INFO] [stdout] test cmd::tests::test_run_cmd ... ok
[INFO] [stdout] test embedded::tests::dirs ... ok
[INFO] [stdout] test app_state::tests::next_pending_exercise ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "099d2c5ab1b7a83a3a660a16dddbd0b4dde81ce93129bfb254e78e7db504083e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099d2c5ab1b7a83a3a660a16dddbd0b4dde81ce93129bfb254e78e7db504083e", kill_on_drop: false }`
[INFO] [stdout] 099d2c5ab1b7a83a3a660a16dddbd0b4dde81ce93129bfb254e78e7db504083e