[INFO] cloning repository https://github.com/ladislaff93/dns-resolver-tpc-request
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ladislaff93/dns-resolver-tpc-request" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fladislaff93%2Fdns-resolver-tpc-request", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fladislaff93%2Fdns-resolver-tpc-request'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4608313d8946de67e55c4e213744f65546b9d10d
[INFO] checking ladislaff93/dns-resolver-tpc-request against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fladislaff93%2Fdns-resolver-tpc-request" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ladislaff93/dns-resolver-tpc-request 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 git repo https://github.com/ladislaff93/dns-resolver-tpc-request
[INFO] finished tweaking git repo https://github.com/ladislaff93/dns-resolver-tpc-request
[INFO] tweaked toml for git repo https://github.com/ladislaff93/dns-resolver-tpc-request written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ladislaff93/dns-resolver-tpc-request 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 data-encoding-macro v0.1.13
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded trust-dns v0.16.1
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.11
[INFO] [stderr]   Downloaded enum-as-inner v0.2.1
[INFO] [stderr]   Downloaded radix_trie v0.1.6
[INFO] [stderr]   Downloaded trust-dns-proto v0.7.4
[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] b5051ceac3f639bece3365f743c2ebe2af327a99add0d33961ed2983efe093b1
[INFO] running `Command { std: "docker" "start" "-a" "b5051ceac3f639bece3365f743c2ebe2af327a99add0d33961ed2983efe093b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5051ceac3f639bece3365f743c2ebe2af327a99add0d33961ed2983efe093b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5051ceac3f639bece3365f743c2ebe2af327a99add0d33961ed2983efe093b1", kill_on_drop: false }`
[INFO] [stdout] b5051ceac3f639bece3365f743c2ebe2af327a99add0d33961ed2983efe093b1
[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] 4c43b2248c419878a1f40d3943f16aea963b6dc453676634048996b098dad719
[INFO] running `Command { std: "docker" "start" "-a" "4c43b2248c419878a1f40d3943f16aea963b6dc453676634048996b098dad719", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling semver v0.9.0
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[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling parking_lot_core v0.6.3
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[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
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[INFO] [stderr]     Checking bytes v0.4.12
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[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking rustc-demangle v0.1.23
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[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-uds v0.2.7
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[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.11
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]     Checking data-encoding-macro v0.1.13
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking trust-dns v0.16.1
[INFO] [stderr]     Checking tcp-request v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> src/dns_resolver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> src/dns_resolver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.11s
[INFO] running `Command { std: "docker" "inspect" "4c43b2248c419878a1f40d3943f16aea963b6dc453676634048996b098dad719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c43b2248c419878a1f40d3943f16aea963b6dc453676634048996b098dad719", kill_on_drop: false }`
[INFO] [stdout] 4c43b2248c419878a1f40d3943f16aea963b6dc453676634048996b098dad719