[INFO] cloning repository https://github.com/uvlad7/xml2json-rb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uvlad7/xml2json-rb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuvlad7%2Fxml2json-rb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuvlad7%2Fxml2json-rb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e37b1331945c8b788b4d1723976017831ab8b2a
[INFO] checking uvlad7/xml2json-rb against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuvlad7%2Fxml2json-rb" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uvlad7/xml2json-rb on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uvlad7/xml2json-rb
[INFO] finished tweaking git repo https://github.com/uvlad7/xml2json-rb
[INFO] tweaked toml for git repo https://github.com/uvlad7/xml2json-rb written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/uvlad7/xml2json-rb 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rb-sys v0.9.82
[INFO] [stderr]   Downloaded magnus-macros v0.4.1
[INFO] [stderr]   Downloaded rb-sys-build v0.9.82
[INFO] [stderr]   Downloaded xml2json-rs v1.0.1
[INFO] [stderr]   Downloaded magnus v0.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a836ffa269e37c82da1ee5d96fdc20065983f31e249b0269aa10fb542efbe435
[INFO] running `Command { std: "docker" "start" "-a" "a836ffa269e37c82da1ee5d96fdc20065983f31e249b0269aa10fb542efbe435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a836ffa269e37c82da1ee5d96fdc20065983f31e249b0269aa10fb542efbe435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a836ffa269e37c82da1ee5d96fdc20065983f31e249b0269aa10fb542efbe435", kill_on_drop: false }`
[INFO] [stdout] a836ffa269e37c82da1ee5d96fdc20065983f31e249b0269aa10fb542efbe435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df727e2a645942d97b9b72cd358f450cceaa0e60adda43eb0ca9afa801f2bfa5
[INFO] running `Command { std: "docker" "start" "-a" "df727e2a645942d97b9b72cd358f450cceaa0e60adda43eb0ca9afa801f2bfa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.7.3
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling serde v1.0.167
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]     Checking equivalent v1.0.0
[INFO] [stderr]    Compiling rb-sys-env v0.1.2
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]    Compiling magnus v0.5.5
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking quick-xml v0.23.1
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]     Checking xml2json-rs v1.0.1
[INFO] [stderr]    Compiling magnus-macros v0.4.1
[INFO] [stderr]    Compiling rb-sys-build v0.9.82
[INFO] [stderr]    Compiling rb-sys v0.9.82
[INFO] [stderr]     Checking xml2json v0.3.1 (/opt/rustwide/workdir/ext/xml2json)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.65s
[INFO] running `Command { std: "docker" "inspect" "df727e2a645942d97b9b72cd358f450cceaa0e60adda43eb0ca9afa801f2bfa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df727e2a645942d97b9b72cd358f450cceaa0e60adda43eb0ca9afa801f2bfa5", kill_on_drop: false }`
[INFO] [stdout] df727e2a645942d97b9b72cd358f450cceaa0e60adda43eb0ca9afa801f2bfa5
[INFO] checking uvlad7/xml2json-rb against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuvlad7%2Fxml2json-rb" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uvlad7/xml2json-rb on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uvlad7/xml2json-rb
[INFO] finished tweaking git repo https://github.com/uvlad7/xml2json-rb
[INFO] tweaked toml for git repo https://github.com/uvlad7/xml2json-rb written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/uvlad7/xml2json-rb 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 651a8e4a7004e9a4c195b0d951f6e3b51085c01c598681813113994cca97e49d
[INFO] running `Command { std: "docker" "start" "-a" "651a8e4a7004e9a4c195b0d951f6e3b51085c01c598681813113994cca97e49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "651a8e4a7004e9a4c195b0d951f6e3b51085c01c598681813113994cca97e49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "651a8e4a7004e9a4c195b0d951f6e3b51085c01c598681813113994cca97e49d", kill_on_drop: false }`
[INFO] [stdout] 651a8e4a7004e9a4c195b0d951f6e3b51085c01c598681813113994cca97e49d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b82891797d028104f2835e4f5bcdfb3fa2f2494dbb184b1d1d758f33f3056e8
[INFO] running `Command { std: "docker" "start" "-a" "8b82891797d028104f2835e4f5bcdfb3fa2f2494dbb184b1d1d758f33f3056e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.7.3
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.167
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]    Compiling rb-sys-env v0.1.2
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking equivalent v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]    Compiling magnus v0.5.5
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking quick-xml v0.23.1
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling magnus-macros v0.4.1
[INFO] [stderr]     Checking xml2json-rs v1.0.1
[INFO] [stderr]    Compiling rb-sys-build v0.9.82
[INFO] [stderr]    Compiling rb-sys v0.9.82
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/magnus-0.5.5/src/error.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |                     unsafe { rb_iter_break_value(val.as_rb_value()) };
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/magnus-0.5.5/src/error.rs:314:13
[INFO] [stdout]     |
[INFO] [stdout] 314 |             unsafe { rb_exc_raise(err.exception().as_rb_value()) }
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0284.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `magnus` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8b82891797d028104f2835e4f5bcdfb3fa2f2494dbb184b1d1d758f33f3056e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b82891797d028104f2835e4f5bcdfb3fa2f2494dbb184b1d1d758f33f3056e8", kill_on_drop: false }`
[INFO] [stdout] 8b82891797d028104f2835e4f5bcdfb3fa2f2494dbb184b1d1d758f33f3056e8