[INFO] cloning repository https://github.com/VisVivaSpace/undaf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VisVivaSpace/undaf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVisVivaSpace%2Fundaf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVisVivaSpace%2Fundaf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ca1c31d4cbbd8a1dcae82d0d32c6fe9f9141e8c
[INFO] checking VisVivaSpace/undaf against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVisVivaSpace%2Fundaf" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VisVivaSpace/undaf 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/VisVivaSpace/undaf
[INFO] finished tweaking git repo https://github.com/VisVivaSpace/undaf
[INFO] tweaked toml for git repo https://github.com/VisVivaSpace/undaf written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/VisVivaSpace/undaf 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 77e602b7fe27a92d3b524001e39fecd7ee37a0b01f5946c1ef2422b43961d8da
[INFO] running `Command { std: "docker" "start" "-a" "77e602b7fe27a92d3b524001e39fecd7ee37a0b01f5946c1ef2422b43961d8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77e602b7fe27a92d3b524001e39fecd7ee37a0b01f5946c1ef2422b43961d8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e602b7fe27a92d3b524001e39fecd7ee37a0b01f5946c1ef2422b43961d8da", kill_on_drop: false }`
[INFO] [stdout] 77e602b7fe27a92d3b524001e39fecd7ee37a0b01f5946c1ef2422b43961d8da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5b361dbebe16e79b5a6f300771ada8638232f9d1ed06bcb4ad74c69fe8bacba1
[INFO] running `Command { std: "docker" "start" "-a" "5b361dbebe16e79b5a6f300771ada8638232f9d1ed06bcb4ad74c69fe8bacba1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking clap_builder v4.4.12
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking clap v4.4.12
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking ron v0.8.1
[INFO] [stderr]     Checking toml_edit v0.22.6
[INFO] [stderr]     Checking toml v0.8.10
[INFO] [stderr]     Checking undaf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.00s
[INFO] running `Command { std: "docker" "inspect" "5b361dbebe16e79b5a6f300771ada8638232f9d1ed06bcb4ad74c69fe8bacba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b361dbebe16e79b5a6f300771ada8638232f9d1ed06bcb4ad74c69fe8bacba1", kill_on_drop: false }`
[INFO] [stdout] 5b361dbebe16e79b5a6f300771ada8638232f9d1ed06bcb4ad74c69fe8bacba1
[INFO] checking VisVivaSpace/undaf against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVisVivaSpace%2Fundaf" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VisVivaSpace/undaf 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/VisVivaSpace/undaf
[INFO] finished tweaking git repo https://github.com/VisVivaSpace/undaf
[INFO] tweaked toml for git repo https://github.com/VisVivaSpace/undaf written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/VisVivaSpace/undaf 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ece0dea9361c65e82b0b8e9b80c29594c991b57573d1e7a53d5cdb295354e9c4
[INFO] running `Command { std: "docker" "start" "-a" "ece0dea9361c65e82b0b8e9b80c29594c991b57573d1e7a53d5cdb295354e9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece0dea9361c65e82b0b8e9b80c29594c991b57573d1e7a53d5cdb295354e9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece0dea9361c65e82b0b8e9b80c29594c991b57573d1e7a53d5cdb295354e9c4", kill_on_drop: false }`
[INFO] [stdout] ece0dea9361c65e82b0b8e9b80c29594c991b57573d1e7a53d5cdb295354e9c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4ae935169dff94557640301be091e058bbff277a32fbf46e4815f12e6703cbd7
[INFO] running `Command { std: "docker" "start" "-a" "4ae935169dff94557640301be091e058bbff277a32fbf46e4815f12e6703cbd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking anstream v0.6.5
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking clap_builder v4.4.12
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking clap v4.4.12
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking toml_edit v0.22.6
[INFO] [stderr]     Checking ron v0.8.1
[INFO] [stderr]     Checking toml v0.8.10
[INFO] [stderr]     Checking undaf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     if buf[0].is_ascii() {
[INFO] [stdout] 44 | |         return Ok(buf[0] as char);
[INFO] [stdout] 45 | |     } else {
[INFO] [stdout] 46 | |         return Err(anyhow!("Non-ASCII value read"));
[INFO] [stdout] 47 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     if buf[0].is_ascii() {
[INFO] [stdout] 44 | |         return Ok(buf[0] as char);
[INFO] [stdout] 45 | |     } else {
[INFO] [stdout] 46 | |         return Err(anyhow!("Non-ASCII value read"));
[INFO] [stdout] 47 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `undaf` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `undaf` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4ae935169dff94557640301be091e058bbff277a32fbf46e4815f12e6703cbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae935169dff94557640301be091e058bbff277a32fbf46e4815f12e6703cbd7", kill_on_drop: false }`
[INFO] [stdout] 4ae935169dff94557640301be091e058bbff277a32fbf46e4815f12e6703cbd7