[INFO] cloning repository https://github.com/ryanccn/nrr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanccn/nrr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanccn%2Fnrr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanccn%2Fnrr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff7320ec7b7876514891f193cc95857efee37133
[INFO] checking ryanccn/nrr against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanccn%2Fnrr" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanccn/nrr 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/ryanccn/nrr
[INFO] finished tweaking git repo https://github.com/ryanccn/nrr
[INFO] tweaked toml for git repo https://github.com/ryanccn/nrr written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanccn/nrr 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]  Downloading crates ...
[INFO] [stderr]   Downloaded halfbrown v0.2.5
[INFO] [stderr]   Downloaded simd-json v0.13.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e4cf04d59ec2c00c3c3ac07e005fae824a337c96572395f3fb53a4e33ea13205
[INFO] running `Command { std: "docker" "start" "-a" "e4cf04d59ec2c00c3c3ac07e005fae824a337c96572395f3fb53a4e33ea13205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4cf04d59ec2c00c3c3ac07e005fae824a337c96572395f3fb53a4e33ea13205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4cf04d59ec2c00c3c3ac07e005fae824a337c96572395f3fb53a4e33ea13205", kill_on_drop: false }`
[INFO] [stdout] e4cf04d59ec2c00c3c3ac07e005fae824a337c96572395f3fb53a4e33ea13205
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6d68df3fb95e0cc39a7394da148eb875aa70cab38f50eae4592753962b8cd249
[INFO] running `Command { std: "docker" "start" "-a" "6d68df3fb95e0cc39a7394da148eb875aa70cab38f50eae4592753962b8cd249", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]     Checking supports-color v2.1.0
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking owo-colors v4.0.0
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]     Checking dotenvy v0.15.7
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling ref-cast-impl v1.0.22
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking ref-cast v1.0.22
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking halfbrown v0.2.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking value-trait v0.8.1
[INFO] [stderr]     Checking simd-json v0.13.9
[INFO] [stderr]     Checking nrr v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.18s
[INFO] running `Command { std: "docker" "inspect" "6d68df3fb95e0cc39a7394da148eb875aa70cab38f50eae4592753962b8cd249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d68df3fb95e0cc39a7394da148eb875aa70cab38f50eae4592753962b8cd249", kill_on_drop: false }`
[INFO] [stdout] 6d68df3fb95e0cc39a7394da148eb875aa70cab38f50eae4592753962b8cd249
[INFO] checking ryanccn/nrr against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanccn%2Fnrr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanccn/nrr 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/ryanccn/nrr
[INFO] finished tweaking git repo https://github.com/ryanccn/nrr
[INFO] tweaked toml for git repo https://github.com/ryanccn/nrr written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanccn/nrr 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3493fc2b846d8c8a7838ec1992008ac6822c69e7d88e63935cacbbf80bc848c6
[INFO] running `Command { std: "docker" "start" "-a" "3493fc2b846d8c8a7838ec1992008ac6822c69e7d88e63935cacbbf80bc848c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3493fc2b846d8c8a7838ec1992008ac6822c69e7d88e63935cacbbf80bc848c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3493fc2b846d8c8a7838ec1992008ac6822c69e7d88e63935cacbbf80bc848c6", kill_on_drop: false }`
[INFO] [stdout] 3493fc2b846d8c8a7838ec1992008ac6822c69e7d88e63935cacbbf80bc848c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0aeb399fbf5fbcf8d2dc0dd94e1aba6250d62b6d3ec7515a65109aeba14591c2
[INFO] running `Command { std: "docker" "start" "-a" "0aeb399fbf5fbcf8d2dc0dd94e1aba6250d62b6d3ec7515a65109aeba14591c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]     Checking supports-color v2.1.0
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking owo-colors v4.0.0
[INFO] [stderr]     Checking dotenvy v0.15.7
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling ref-cast-impl v1.0.22
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking ref-cast v1.0.22
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking halfbrown v0.2.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking value-trait v0.8.1
[INFO] [stderr]     Checking simd-json v0.13.9
[INFO] [stderr]     Checking nrr v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.46s
[INFO] running `Command { std: "docker" "inspect" "0aeb399fbf5fbcf8d2dc0dd94e1aba6250d62b6d3ec7515a65109aeba14591c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aeb399fbf5fbcf8d2dc0dd94e1aba6250d62b6d3ec7515a65109aeba14591c2", kill_on_drop: false }`
[INFO] [stdout] 0aeb399fbf5fbcf8d2dc0dd94e1aba6250d62b6d3ec7515a65109aeba14591c2