[INFO] fetching crate multi-tunnel 0.3.3...
[INFO] checking multi-tunnel-0.3.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate multi-tunnel 0.3.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate multi-tunnel 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 multi-tunnel 0.3.3
[INFO] finished tweaking crates.io crate multi-tunnel 0.3.3
[INFO] tweaked toml for crates.io crate multi-tunnel 0.3.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate multi-tunnel 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 tracing-log v0.1.2
[INFO] [stderr]   Downloaded tiny_http v0.10.0
[INFO] [stderr]   Downloaded prometheus v0.13.0
[INFO] [stderr]   Downloaded prometheus_exporter v0.8.4
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.11
[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] 5d0377f2a241168170a810a2842f615d547da6d19135b29adaed7807f0c98523
[INFO] running `Command { std: "docker" "start" "-a" "5d0377f2a241168170a810a2842f615d547da6d19135b29adaed7807f0c98523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d0377f2a241168170a810a2842f615d547da6d19135b29adaed7807f0c98523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0377f2a241168170a810a2842f615d547da6d19135b29adaed7807f0c98523", kill_on_drop: false }`
[INFO] [stdout] 5d0377f2a241168170a810a2842f615d547da6d19135b29adaed7807f0c98523
[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] f6043b702dee03fe764331db7a2c109c1ec1e349a49acf7ca16ed9f0201d0bca
[INFO] running `Command { std: "docker" "start" "-a" "f6043b702dee03fe764331db7a2c109c1ec1e349a49acf7ca16ed9f0201d0bca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling prometheus v0.13.0
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking tiny_http v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking prometheus_exporter v0.8.4
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking multi-tunnel v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.48s
[INFO] running `Command { std: "docker" "inspect" "f6043b702dee03fe764331db7a2c109c1ec1e349a49acf7ca16ed9f0201d0bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6043b702dee03fe764331db7a2c109c1ec1e349a49acf7ca16ed9f0201d0bca", kill_on_drop: false }`
[INFO] [stdout] f6043b702dee03fe764331db7a2c109c1ec1e349a49acf7ca16ed9f0201d0bca