[INFO] fetching crate socks5-forwarder 0.1.0...
[INFO] checking socks5-forwarder-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate socks5-forwarder 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate socks5-forwarder 0.1.0 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 socks5-forwarder 0.1.0
[INFO] finished tweaking crates.io crate socks5-forwarder 0.1.0
[INFO] tweaked toml for crates.io crate socks5-forwarder 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate socks5-forwarder 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 69fb59089e7346f3427d492ce5715935394a9d58c8a431c31b08d55ef3e63a1f
[INFO] running `Command { std: "docker" "start" "-a" "69fb59089e7346f3427d492ce5715935394a9d58c8a431c31b08d55ef3e63a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69fb59089e7346f3427d492ce5715935394a9d58c8a431c31b08d55ef3e63a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69fb59089e7346f3427d492ce5715935394a9d58c8a431c31b08d55ef3e63a1f", kill_on_drop: false }`
[INFO] [stdout] 69fb59089e7346f3427d492ce5715935394a9d58c8a431c31b08d55ef3e63a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 362e579401acb3da0bd62a0828b6ef04bb16c7f6cd031cbf4cd2f03f1da9cb86
[INFO] running `Command { std: "docker" "start" "-a" "362e579401acb3da0bd62a0828b6ef04bb16c7f6cd031cbf4cd2f03f1da9cb86", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-socks v0.5.1
[INFO] [stderr]     Checking socks5-forwarder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.70s
[INFO] running `Command { std: "docker" "inspect" "362e579401acb3da0bd62a0828b6ef04bb16c7f6cd031cbf4cd2f03f1da9cb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362e579401acb3da0bd62a0828b6ef04bb16c7f6cd031cbf4cd2f03f1da9cb86", kill_on_drop: false }`
[INFO] [stdout] 362e579401acb3da0bd62a0828b6ef04bb16c7f6cd031cbf4cd2f03f1da9cb86
[INFO] checking socks5-forwarder-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate socks5-forwarder 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate socks5-forwarder 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate socks5-forwarder 0.1.0
[INFO] finished tweaking crates.io crate socks5-forwarder 0.1.0
[INFO] tweaked toml for crates.io crate socks5-forwarder 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate socks5-forwarder 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c80e7f563f0bd4aa4f3dd1dc277ca30b69e1d3c00eccccf2aee294d38ad6495e
[INFO] running `Command { std: "docker" "start" "-a" "c80e7f563f0bd4aa4f3dd1dc277ca30b69e1d3c00eccccf2aee294d38ad6495e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c80e7f563f0bd4aa4f3dd1dc277ca30b69e1d3c00eccccf2aee294d38ad6495e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c80e7f563f0bd4aa4f3dd1dc277ca30b69e1d3c00eccccf2aee294d38ad6495e", kill_on_drop: false }`
[INFO] [stdout] c80e7f563f0bd4aa4f3dd1dc277ca30b69e1d3c00eccccf2aee294d38ad6495e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83bef670892abbdaf1831c0308d18eb2c31f23a0f34723f66533284cfd38c7b3
[INFO] running `Command { std: "docker" "start" "-a" "83bef670892abbdaf1831c0308d18eb2c31f23a0f34723f66533284cfd38c7b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-socks v0.5.1
[INFO] [stderr]     Checking socks5-forwarder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `Command { std: "docker" "inspect" "83bef670892abbdaf1831c0308d18eb2c31f23a0f34723f66533284cfd38c7b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83bef670892abbdaf1831c0308d18eb2c31f23a0f34723f66533284cfd38c7b3", kill_on_drop: false }`
[INFO] [stdout] 83bef670892abbdaf1831c0308d18eb2c31f23a0f34723f66533284cfd38c7b3