[INFO] fetching crate mdbook-trace 0.1.1...
[INFO] checking mdbook-trace-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.143
[INFO] [stderr]   Downloaded opener v0.5.0
[INFO] [stderr]   Downloaded topological-sort v0.1.0
[INFO] [stderr]   Downloaded semver v1.0.13
[INFO] [stderr]   Downloaded android_system_properties v0.1.4
[INFO] [stderr]   Downloaded iana-time-zone v0.1.45
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded clap_derive v3.2.17
[INFO] [stderr]   Downloaded pest v2.2.1
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded clap v3.2.17
[INFO] [stderr]   Downloaded handlebars v4.3.3
[INFO] [stderr]   Downloaded pulldown-cmark v0.9.2
[INFO] [stderr]   Downloaded clap_complete v3.2.4
[INFO] [stderr]   Downloaded ucd-trie v0.1.4
[INFO] [stderr]   Downloaded serde v1.0.143
[INFO] [stderr]   Downloaded mdbook v0.4.21
[INFO] [stderr]   Downloaded block-buffer v0.10.2
[INFO] [stderr]   Downloaded pest_meta v2.2.1
[INFO] [stderr]   Downloaded pest_generator v2.2.1
[INFO] [stderr]   Downloaded pest_derive v2.2.1
[INFO] [stderr]   Downloaded serde_json v1.0.83
[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] d05dd914be38120513e8100595c5a789a1ffdb6d5a48efce125091cb5e066c90
[INFO] running `Command { std: "docker" "start" "-a" "d05dd914be38120513e8100595c5a789a1ffdb6d5a48efce125091cb5e066c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d05dd914be38120513e8100595c5a789a1ffdb6d5a48efce125091cb5e066c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d05dd914be38120513e8100595c5a789a1ffdb6d5a48efce125091cb5e066c90", kill_on_drop: false }`
[INFO] [stdout] d05dd914be38120513e8100595c5a789a1ffdb6d5a48efce125091cb5e066c90
[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] c6dd24671e083f33da27a87d78009ec9e4f986d2157f8815d5c27d876fe6d758
[INFO] running `Command { std: "docker" "start" "-a" "c6dd24671e083f33da27a87d78009ec9e4f986d2157f8815d5c27d876fe6d758", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling anyhow v1.0.62
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling pulldown-cmark v0.9.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking iana-time-zone v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking topological-sort v0.1.0
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking opener v0.5.0
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling pest v2.2.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]    Compiling pest_meta v2.2.1
[INFO] [stderr]    Compiling pest_generator v2.2.1
[INFO] [stderr]    Compiling pest_derive v2.2.1
[INFO] [stderr]     Checking clap_complete v3.2.4
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking handlebars v4.3.3
[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 24.98s
[INFO] running `Command { std: "docker" "inspect" "c6dd24671e083f33da27a87d78009ec9e4f986d2157f8815d5c27d876fe6d758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6dd24671e083f33da27a87d78009ec9e4f986d2157f8815d5c27d876fe6d758", kill_on_drop: false }`
[INFO] [stdout] c6dd24671e083f33da27a87d78009ec9e4f986d2157f8815d5c27d876fe6d758