[INFO] cloning repository https://github.com/otahirs/iof_xml_converter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/otahirs/iof_xml_converter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotahirs%2Fiof_xml_converter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotahirs%2Fiof_xml_converter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7782ce0e487dd8d4166b00acf2ee9ee824d6798
[INFO] checking otahirs/iof_xml_converter against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotahirs%2Fiof_xml_converter" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/otahirs/iof_xml_converter on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/otahirs/iof_xml_converter
[INFO] finished tweaking git repo https://github.com/otahirs/iof_xml_converter
[INFO] tweaked toml for git repo https://github.com/otahirs/iof_xml_converter written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/otahirs/iof_xml_converter 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb0e8945fcec6fb91a7a0579fe1e15879457eeffdd78e72cee66893cb897085d
[INFO] running `Command { std: "docker" "start" "-a" "eb0e8945fcec6fb91a7a0579fe1e15879457eeffdd78e72cee66893cb897085d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb0e8945fcec6fb91a7a0579fe1e15879457eeffdd78e72cee66893cb897085d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0e8945fcec6fb91a7a0579fe1e15879457eeffdd78e72cee66893cb897085d", kill_on_drop: false }`
[INFO] [stdout] eb0e8945fcec6fb91a7a0579fe1e15879457eeffdd78e72cee66893cb897085d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e24ff2986ddad51c5b159041c829d8ba69b87ad67b9442a7dac26ed95f4ce70c
[INFO] running `Command { std: "docker" "start" "-a" "e24ff2986ddad51c5b159041c829d8ba69b87ad67b9442a7dac26ed95f4ce70c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling rustix v0.38.7
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking aho-corasick v1.0.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.21
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking quick-xml v0.28.2
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking clap v4.3.21
[INFO] [stderr]     Checking iof_xml_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for mut class in &mut xml.class_result {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for mut class in &mut xml.class_result {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "e24ff2986ddad51c5b159041c829d8ba69b87ad67b9442a7dac26ed95f4ce70c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24ff2986ddad51c5b159041c829d8ba69b87ad67b9442a7dac26ed95f4ce70c", kill_on_drop: false }`
[INFO] [stdout] e24ff2986ddad51c5b159041c829d8ba69b87ad67b9442a7dac26ed95f4ce70c
[INFO] checking otahirs/iof_xml_converter against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fotahirs%2Fiof_xml_converter" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/otahirs/iof_xml_converter on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/otahirs/iof_xml_converter
[INFO] finished tweaking git repo https://github.com/otahirs/iof_xml_converter
[INFO] tweaked toml for git repo https://github.com/otahirs/iof_xml_converter written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/otahirs/iof_xml_converter 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45324f20063357ecc00f52f87df6a482158ef253161efc41142ef4b80a95ba59
[INFO] running `Command { std: "docker" "start" "-a" "45324f20063357ecc00f52f87df6a482158ef253161efc41142ef4b80a95ba59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45324f20063357ecc00f52f87df6a482158ef253161efc41142ef4b80a95ba59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45324f20063357ecc00f52f87df6a482158ef253161efc41142ef4b80a95ba59", kill_on_drop: false }`
[INFO] [stdout] 45324f20063357ecc00f52f87df6a482158ef253161efc41142ef4b80a95ba59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16e27f88146cb4659b5ee1921e43e7c3e48ff8b6be33301bd08c7b70ede4ed0a
[INFO] running `Command { std: "docker" "start" "-a" "16e27f88146cb4659b5ee1921e43e7c3e48ff8b6be33301bd08c7b70ede4ed0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling rustix v0.38.7
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking aho-corasick v1.0.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.21
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking quick-xml v0.28.2
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking clap v4.3.21
[INFO] [stderr]     Checking iof_xml_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for mut class in &mut xml.class_result {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for mut class in &mut xml.class_result {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.78s
[INFO] running `Command { std: "docker" "inspect" "16e27f88146cb4659b5ee1921e43e7c3e48ff8b6be33301bd08c7b70ede4ed0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e27f88146cb4659b5ee1921e43e7c3e48ff8b6be33301bd08c7b70ede4ed0a", kill_on_drop: false }`
[INFO] [stdout] 16e27f88146cb4659b5ee1921e43e7c3e48ff8b6be33301bd08c7b70ede4ed0a