[INFO] fetching crate mdbook-trace 0.1.1...
[INFO] checking mdbook-trace-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate mdbook-trace 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mdbook-trace 0.1.1 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 mdbook-trace 0.1.1
[INFO] finished tweaking crates.io crate mdbook-trace 0.1.1
[INFO] tweaked toml for crates.io crate mdbook-trace 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate mdbook-trace 0.1.1 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 topological-sort v0.1.0
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded ryu v1.0.11
[INFO] [stderr]   Downloaded shlex v1.1.0
[INFO] [stderr]   Downloaded android_system_properties v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.82
[INFO] [stderr]   Downloaded pest_generator v2.2.1
[INFO] [stderr]   Downloaded anyhow v1.0.62
[INFO] [stderr]   Downloaded iana-time-zone v0.1.45
[INFO] [stderr]   Downloaded js-sys v0.3.59
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.82
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded pest v2.2.1
[INFO] [stderr]   Downloaded handlebars v4.3.3
[INFO] [stderr]   Downloaded serde_json v1.0.83
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.82
[INFO] [stderr]   Downloaded mdbook v0.4.21
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.82
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.82
[INFO] [stderr]   Downloaded clap_derive v3.2.17
[INFO] [stderr]   Downloaded clap_complete v3.2.4
[INFO] [stderr]   Downloaded generic-array v0.14.6
[INFO] [stderr]   Downloaded sha-1 v0.10.0
[INFO] [stderr]   Downloaded pest_meta v2.2.1
[INFO] [stderr]   Downloaded pest_derive v2.2.1
[INFO] [stderr]   Downloaded opener v0.5.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.9.2
[INFO] [stderr]   Downloaded semver v1.0.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4170b0fca3a19b40405baf535d3ab0bb972dd77ff01b1872b6cdcf646e762e23
[INFO] running `Command { std: "docker" "start" "-a" "4170b0fca3a19b40405baf535d3ab0bb972dd77ff01b1872b6cdcf646e762e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4170b0fca3a19b40405baf535d3ab0bb972dd77ff01b1872b6cdcf646e762e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4170b0fca3a19b40405baf535d3ab0bb972dd77ff01b1872b6cdcf646e762e23", kill_on_drop: false }`
[INFO] [stdout] 4170b0fca3a19b40405baf535d3ab0bb972dd77ff01b1872b6cdcf646e762e23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6bf7d925279258b6128ba42827b58344ed22b66b006335a01a9a767f94851086
[INFO] running `Command { std: "docker" "start" "-a" "6bf7d925279258b6128ba42827b58344ed22b66b006335a01a9a767f94851086", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling pest v2.2.1
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pulldown-cmark v0.9.2
[INFO] [stderr]    Compiling anyhow v1.0.62
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling pest_meta v2.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking iana-time-zone v0.1.45
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking opener v0.5.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]     Checking topological-sort v0.1.0
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]    Compiling pest_generator v2.2.1
[INFO] [stderr]    Compiling pest_derive v2.2.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking handlebars v4.3.3
[INFO] [stderr]     Checking clap_complete v3.2.4
[INFO] [stderr]     Checking mdbook v0.4.21
[INFO] [stderr]     Checking mdbook-trace v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.88s
[INFO] running `Command { std: "docker" "inspect" "6bf7d925279258b6128ba42827b58344ed22b66b006335a01a9a767f94851086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf7d925279258b6128ba42827b58344ed22b66b006335a01a9a767f94851086", kill_on_drop: false }`
[INFO] [stdout] 6bf7d925279258b6128ba42827b58344ed22b66b006335a01a9a767f94851086
[INFO] checking mdbook-trace-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate mdbook-trace 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate mdbook-trace 0.1.1 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 mdbook-trace 0.1.1
[INFO] finished tweaking crates.io crate mdbook-trace 0.1.1
[INFO] tweaked toml for crates.io crate mdbook-trace 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate mdbook-trace 0.1.1 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f35d68aa4367b44289892596c85ef652327b6abd0396edddc518ef60f6065132
[INFO] running `Command { std: "docker" "start" "-a" "f35d68aa4367b44289892596c85ef652327b6abd0396edddc518ef60f6065132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f35d68aa4367b44289892596c85ef652327b6abd0396edddc518ef60f6065132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f35d68aa4367b44289892596c85ef652327b6abd0396edddc518ef60f6065132", kill_on_drop: false }`
[INFO] [stdout] f35d68aa4367b44289892596c85ef652327b6abd0396edddc518ef60f6065132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6cc00dea089bd7425ffb50b260de41fd253facec9c5cf87060b92566e793beae
[INFO] running `Command { std: "docker" "start" "-a" "6cc00dea089bd7425ffb50b260de41fd253facec9c5cf87060b92566e793beae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pest v2.2.1
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling anyhow v1.0.62
[INFO] [stderr]    Compiling pulldown-cmark v0.9.2
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking iana-time-zone v0.1.45
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling pest_meta v2.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking opener v0.5.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking topological-sort v0.1.0
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]    Compiling pest_generator v2.2.1
[INFO] [stderr]    Compiling pest_derive v2.2.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking handlebars v4.3.3
[INFO] [stderr]     Checking clap_complete v3.2.4
[INFO] [stderr]     Checking mdbook v0.4.21
[INFO] [stderr]     Checking mdbook-trace v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.51s
[INFO] running `Command { std: "docker" "inspect" "6cc00dea089bd7425ffb50b260de41fd253facec9c5cf87060b92566e793beae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc00dea089bd7425ffb50b260de41fd253facec9c5cf87060b92566e793beae", kill_on_drop: false }`
[INFO] [stdout] 6cc00dea089bd7425ffb50b260de41fd253facec9c5cf87060b92566e793beae