[INFO] fetching crate railway 0.3.3...
[INFO] checking railway-0.3.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate railway 0.3.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate railway 0.3.3 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 railway 0.3.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate railway 0.3.3
[INFO] tweaked toml for crates.io crate railway 0.3.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate railway 0.3.3 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 wizdraw v1.2.1
[INFO] [stderr]   Downloaded vek v0.15.10
[INFO] [stderr]   Downloaded log v0.4.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d891549b6448f5647d094a8ff26425b53e4f089c45930f4a08fc9754670a9c71
[INFO] running `Command { std: "docker" "start" "-a" "d891549b6448f5647d094a8ff26425b53e4f089c45930f4a08fc9754670a9c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d891549b6448f5647d094a8ff26425b53e4f089c45930f4a08fc9754670a9c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d891549b6448f5647d094a8ff26425b53e4f089c45930f4a08fc9754670a9c71", kill_on_drop: false }`
[INFO] [stdout] d891549b6448f5647d094a8ff26425b53e4f089c45930f4a08fc9754670a9c71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bc6a60fceb8546859a9e4a3760f9b6e3cae3e3f1e4eb34c3212b82c07789aa66
[INFO] running `Command { std: "docker" "start" "-a" "bc6a60fceb8546859a9e4a3760f9b6e3cae3e3f1e4eb34c3212b82c07789aa66", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking rgb v0.8.36
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling vek v0.15.10
[INFO] [stderr]     Checking png v0.17.8
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking wizdraw v1.2.1
[INFO] [stderr]     Checking railway v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `Command { std: "docker" "inspect" "bc6a60fceb8546859a9e4a3760f9b6e3cae3e3f1e4eb34c3212b82c07789aa66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6a60fceb8546859a9e4a3760f9b6e3cae3e3f1e4eb34c3212b82c07789aa66", kill_on_drop: false }`
[INFO] [stdout] bc6a60fceb8546859a9e4a3760f9b6e3cae3e3f1e4eb34c3212b82c07789aa66