[INFO] fetching crate dns_common 0.2.1...
[INFO] checking dns_common-0.2.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate dns_common 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dns_common 0.2.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dns_common 0.2.1
[INFO] finished tweaking crates.io crate dns_common 0.2.1
[INFO] tweaked toml for crates.io crate dns_common 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding matchers v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.1)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.7)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.4)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa96aba9307b2e63176614b374e61abacaefe54b9d1992dea29c0161326c7dad
[INFO] running `Command { std: "docker" "start" "-a" "aa96aba9307b2e63176614b374e61abacaefe54b9d1992dea29c0161326c7dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa96aba9307b2e63176614b374e61abacaefe54b9d1992dea29c0161326c7dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa96aba9307b2e63176614b374e61abacaefe54b9d1992dea29c0161326c7dad", kill_on_drop: false }`
[INFO] [stdout] aa96aba9307b2e63176614b374e61abacaefe54b9d1992dea29c0161326c7dad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03af812342f16c9ddd7a351b37da2dd4db23da17ffe7d4914bec3612e73e363b
[INFO] running `Command { std: "docker" "start" "-a" "03af812342f16c9ddd7a351b37da2dd4db23da17ffe7d4914bec3612e73e363b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking dns_common v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/tracing.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing_subscriber::{prelude::*, EnvFilter};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/tracing.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing_subscriber::{prelude::*, EnvFilter};
[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 9.57s
[INFO] running `Command { std: "docker" "inspect" "03af812342f16c9ddd7a351b37da2dd4db23da17ffe7d4914bec3612e73e363b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03af812342f16c9ddd7a351b37da2dd4db23da17ffe7d4914bec3612e73e363b", kill_on_drop: false }`
[INFO] [stdout] 03af812342f16c9ddd7a351b37da2dd4db23da17ffe7d4914bec3612e73e363b
[INFO] checking dns_common-0.2.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate dns_common 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate dns_common 0.2.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dns_common 0.2.1
[INFO] finished tweaking crates.io crate dns_common 0.2.1
[INFO] tweaked toml for crates.io crate dns_common 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding matchers v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.1)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.7)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.4)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c5db02260f6a566c46ebdece5fde1180f285e409d265fcd72b2573849ffb54a
[INFO] running `Command { std: "docker" "start" "-a" "2c5db02260f6a566c46ebdece5fde1180f285e409d265fcd72b2573849ffb54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c5db02260f6a566c46ebdece5fde1180f285e409d265fcd72b2573849ffb54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5db02260f6a566c46ebdece5fde1180f285e409d265fcd72b2573849ffb54a", kill_on_drop: false }`
[INFO] [stdout] 2c5db02260f6a566c46ebdece5fde1180f285e409d265fcd72b2573849ffb54a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 446bc85df39fba43dc6723ecc6e9ae2a9c38213f3e0eb19a03c103a7b1b6af42
[INFO] running `Command { std: "docker" "start" "-a" "446bc85df39fba43dc6723ecc6e9ae2a9c38213f3e0eb19a03c103a7b1b6af42", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking dns_common v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/tracing.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing_subscriber::{prelude::*, EnvFilter};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/tracing.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing_subscriber::{prelude::*, EnvFilter};
[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 11.59s
[INFO] running `Command { std: "docker" "inspect" "446bc85df39fba43dc6723ecc6e9ae2a9c38213f3e0eb19a03c103a7b1b6af42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446bc85df39fba43dc6723ecc6e9ae2a9c38213f3e0eb19a03c103a7b1b6af42", kill_on_drop: false }`
[INFO] [stdout] 446bc85df39fba43dc6723ecc6e9ae2a9c38213f3e0eb19a03c103a7b1b6af42