[INFO] fetching crate dnsresolv 0.1.2...
[INFO] checking dnsresolv-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate dnsresolv 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dnsresolv 0.1.2 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dnsresolv 0.1.2
[INFO] finished tweaking crates.io crate dnsresolv 0.1.2
[INFO] tweaked toml for crates.io crate dnsresolv 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate dnsresolv 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] [stderr]   Downloaded async-trait v0.1.40
[INFO] [stderr]   Downloaded pin-project-internal v0.4.23
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded miow v0.3.5
[INFO] [stderr]   Downloaded miniz_oxide v0.4.1
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded termion v1.5.5
[INFO] [stderr]   Downloaded backtrace v0.3.50
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded chrono v0.4.15
[INFO] [stderr]   Downloaded widestring v0.4.2
[INFO] [stderr]   Downloaded pin-project v0.4.23
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fad48bbcc67a98837f82de67d330e62c373af0404fbfe72e8f745ba7d35da084
[INFO] running `Command { std: "docker" "start" "-a" "fad48bbcc67a98837f82de67d330e62c373af0404fbfe72e8f745ba7d35da084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fad48bbcc67a98837f82de67d330e62c373af0404fbfe72e8f745ba7d35da084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad48bbcc67a98837f82de67d330e62c373af0404fbfe72e8f745ba7d35da084", kill_on_drop: false }`
[INFO] [stdout] fad48bbcc67a98837f82de67d330e62c373af0404fbfe72e8f745ba7d35da084
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29897192c44e8b7f01bb917903e071ab49019ae2ddc5d95a84ad78e7b67e6f2e
[INFO] running `Command { std: "docker" "start" "-a" "29897192c44e8b7f01bb917903e071ab49019ae2ddc5d95a84ad78e7b67e6f2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking lru-cache v0.1.2
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[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking getrandom v0.1.14
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[INFO] [stderr]     Checking signal-hook-registry v1.2.1
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[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand v0.7.3
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[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking dnsresolv v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `stderrlog` is imported redundantly
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use stderrlog;
[INFO] [stdout]   |     ^^^^^^^^^ the item `stderrlog` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `stderrlog` is imported redundantly
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use stderrlog;
[INFO] [stdout]   |     ^^^^^^^^^ the item `stderrlog` is already defined by prelude
[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 6.48s
[INFO] running `Command { std: "docker" "inspect" "29897192c44e8b7f01bb917903e071ab49019ae2ddc5d95a84ad78e7b67e6f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29897192c44e8b7f01bb917903e071ab49019ae2ddc5d95a84ad78e7b67e6f2e", kill_on_drop: false }`
[INFO] [stdout] 29897192c44e8b7f01bb917903e071ab49019ae2ddc5d95a84ad78e7b67e6f2e