[INFO] fetching crate code_snippet_generator 0.1.7...
[INFO] checking code_snippet_generator-0.1.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate code_snippet_generator 0.1.7 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate code_snippet_generator 0.1.7 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 crates.io crate code_snippet_generator 0.1.7
[INFO] finished tweaking crates.io crate code_snippet_generator 0.1.7
[INFO] tweaked toml for crates.io crate code_snippet_generator 0.1.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 59 packages
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding rustfmt-wrapper v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding semver v0.11.0 (latest: v1.0.22)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synoptic v1.2.0 (latest: v2.0.0)
[INFO] [stderr]       Adding toolchain_find v0.2.0 (latest: v0.4.0)
[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 semver-parser v0.10.2
[INFO] [stderr]   Downloaded toolchain_find v0.2.0
[INFO] [stderr]   Downloaded rustfmt-wrapper v0.1.0
[INFO] [stderr]   Downloaded semver v0.11.0
[INFO] [stderr]   Downloaded synoptic v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b44202fb77a91a77b6cebd2b05a223d6a1129ef8ade478d0047e925a06b7048b
[INFO] running `Command { std: "docker" "start" "-a" "b44202fb77a91a77b6cebd2b05a223d6a1129ef8ade478d0047e925a06b7048b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44202fb77a91a77b6cebd2b05a223d6a1129ef8ade478d0047e925a06b7048b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44202fb77a91a77b6cebd2b05a223d6a1129ef8ade478d0047e925a06b7048b", kill_on_drop: false }`
[INFO] [stdout] b44202fb77a91a77b6cebd2b05a223d6a1129ef8ade478d0047e925a06b7048b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ea1bb4098324eb738099c062daeae1f40ea5aabb9ef6598dc33164ec4b6c955d
[INFO] running `Command { std: "docker" "start" "-a" "ea1bb4098324eb738099c062daeae1f40ea5aabb9ef6598dc33164ec4b6c955d", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking pest v2.7.9
[INFO] [stderr]     Checking proc-macro-error v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking toolchain_find v0.2.0
[INFO] [stderr]     Checking synoptic v1.2.0
[INFO] [stderr]     Checking rustfmt-wrapper v0.1.0
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking code_snippet_generator v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.80s
[INFO] running `Command { std: "docker" "inspect" "ea1bb4098324eb738099c062daeae1f40ea5aabb9ef6598dc33164ec4b6c955d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea1bb4098324eb738099c062daeae1f40ea5aabb9ef6598dc33164ec4b6c955d", kill_on_drop: false }`
[INFO] [stdout] ea1bb4098324eb738099c062daeae1f40ea5aabb9ef6598dc33164ec4b6c955d
[INFO] checking code_snippet_generator-0.1.7 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate code_snippet_generator 0.1.7 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate code_snippet_generator 0.1.7 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 crates.io crate code_snippet_generator 0.1.7
[INFO] finished tweaking crates.io crate code_snippet_generator 0.1.7
[INFO] tweaked toml for crates.io crate code_snippet_generator 0.1.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding rustfmt-wrapper v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding semver v0.11.0 (latest: v1.0.22)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synoptic v1.2.0 (latest: v2.0.0)
[INFO] [stderr]       Adding toolchain_find v0.2.0 (latest: v0.4.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a211e0c069c238950f22f55b546da8fdded5d48c2e14d661252e2e374c053a0a
[INFO] running `Command { std: "docker" "start" "-a" "a211e0c069c238950f22f55b546da8fdded5d48c2e14d661252e2e374c053a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a211e0c069c238950f22f55b546da8fdded5d48c2e14d661252e2e374c053a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a211e0c069c238950f22f55b546da8fdded5d48c2e14d661252e2e374c053a0a", kill_on_drop: false }`
[INFO] [stdout] a211e0c069c238950f22f55b546da8fdded5d48c2e14d661252e2e374c053a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4ae8b60b79f28fc1a0f06d294b550a709103cfcca0137fda930317a8fd471481
[INFO] running `Command { std: "docker" "start" "-a" "4ae8b60b79f28fc1a0f06d294b550a709103cfcca0137fda930317a8fd471481", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking pest v2.7.9
[INFO] [stderr]     Checking proc-macro-error v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking toolchain_find v0.2.0
[INFO] [stderr]     Checking synoptic v1.2.0
[INFO] [stderr]     Checking rustfmt-wrapper v0.1.0
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking code_snippet_generator v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.59s
[INFO] running `Command { std: "docker" "inspect" "4ae8b60b79f28fc1a0f06d294b550a709103cfcca0137fda930317a8fd471481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae8b60b79f28fc1a0f06d294b550a709103cfcca0137fda930317a8fd471481", kill_on_drop: false }`
[INFO] [stdout] 4ae8b60b79f28fc1a0f06d294b550a709103cfcca0137fda930317a8fd471481