[INFO] fetching crate rich-strong-server 0.1.2...
[INFO] checking rich-strong-server-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rich-strong-server 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rich-strong-server 0.1.2 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 rich-strong-server 0.1.2
[INFO] finished tweaking crates.io crate rich-strong-server 0.1.2
[INFO] tweaked toml for crates.io crate rich-strong-server 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate rich-strong-server 0.1.2 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-iterator-derive v1.0.1
[INFO] [stderr]   Downloaded sni_shuffle v0.1.0
[INFO] [stderr]   Downloaded enum-iterator v1.1.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded configparser v3.0.0
[INFO] [stderr]   Downloaded rich-strong-lib v0.1.2
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded object v0.28.4
[INFO] [stderr]   Downloaded gimli v0.26.1
[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] 2f9028ce7c46e89d97015a2e675f69b1a928d376ac9ee0bf68f1489a7eeff314
[INFO] running `Command { std: "docker" "start" "-a" "2f9028ce7c46e89d97015a2e675f69b1a928d376ac9ee0bf68f1489a7eeff314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9028ce7c46e89d97015a2e675f69b1a928d376ac9ee0bf68f1489a7eeff314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9028ce7c46e89d97015a2e675f69b1a928d376ac9ee0bf68f1489a7eeff314", kill_on_drop: false }`
[INFO] [stdout] 2f9028ce7c46e89d97015a2e675f69b1a928d376ac9ee0bf68f1489a7eeff314
[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] de7ba91a4c5b74992515ae6cb75012a6f13013323b913336684013c0ec1dfeca
[INFO] running `Command { std: "docker" "start" "-a" "de7ba91a4c5b74992515ae6cb75012a6f13013323b913336684013c0ec1dfeca", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking sni_shuffle v0.1.0
[INFO] [stderr]     Checking configparser v3.0.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling enum-iterator-derive v1.0.1
[INFO] [stderr]     Checking enum-iterator v1.1.2
[INFO] [stderr]     Checking rich-strong-lib v0.1.2
[INFO] [stderr]     Checking rich-strong-server v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "de7ba91a4c5b74992515ae6cb75012a6f13013323b913336684013c0ec1dfeca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7ba91a4c5b74992515ae6cb75012a6f13013323b913336684013c0ec1dfeca", kill_on_drop: false }`
[INFO] [stdout] de7ba91a4c5b74992515ae6cb75012a6f13013323b913336684013c0ec1dfeca