[INFO] cloning repository https://github.com/Skynse/reef
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Skynse/reef" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkynse%2Freef", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkynse%2Freef'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6eb3b235f17440f1e741a89ac5d0c8ccc09a7cc3
[INFO] checking Skynse/reef against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkynse%2Freef" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skynse/reef 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/Skynse/reef
[INFO] finished tweaking git repo https://github.com/Skynse/reef
[INFO] tweaked toml for git repo https://github.com/Skynse/reef written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Skynse/reef 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] 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] df4771168dbf144d29c834f636f4d0239e871a75cf52ca281846d378b35e72ca
[INFO] running `Command { std: "docker" "start" "-a" "df4771168dbf144d29c834f636f4d0239e871a75cf52ca281846d378b35e72ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df4771168dbf144d29c834f636f4d0239e871a75cf52ca281846d378b35e72ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4771168dbf144d29c834f636f4d0239e871a75cf52ca281846d378b35e72ca", kill_on_drop: false }`
[INFO] [stdout] df4771168dbf144d29c834f636f4d0239e871a75cf52ca281846d378b35e72ca
[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] 408c6a76873be6252be6160e795aea93714f93339d30f9c42cfb2764258c1248
[INFO] running `Command { std: "docker" "start" "-a" "408c6a76873be6252be6160e795aea93714f93339d30f9c42cfb2764258c1248", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]     Checking reef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.16s
[INFO] running `Command { std: "docker" "inspect" "408c6a76873be6252be6160e795aea93714f93339d30f9c42cfb2764258c1248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408c6a76873be6252be6160e795aea93714f93339d30f9c42cfb2764258c1248", kill_on_drop: false }`
[INFO] [stdout] 408c6a76873be6252be6160e795aea93714f93339d30f9c42cfb2764258c1248
[INFO] checking Skynse/reef against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkynse%2Freef" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skynse/reef 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 git repo https://github.com/Skynse/reef
[INFO] finished tweaking git repo https://github.com/Skynse/reef
[INFO] tweaked toml for git repo https://github.com/Skynse/reef written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Skynse/reef 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9bb5f404cf33c8c202ca19a70f9225a4171bfcb436765dec70e783562c2467be
[INFO] running `Command { std: "docker" "start" "-a" "9bb5f404cf33c8c202ca19a70f9225a4171bfcb436765dec70e783562c2467be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bb5f404cf33c8c202ca19a70f9225a4171bfcb436765dec70e783562c2467be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb5f404cf33c8c202ca19a70f9225a4171bfcb436765dec70e783562c2467be", kill_on_drop: false }`
[INFO] [stdout] 9bb5f404cf33c8c202ca19a70f9225a4171bfcb436765dec70e783562c2467be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8fd254360830626cc64a992527cd53b5605d03aee22414fb1e5e5260886ae49c
[INFO] running `Command { std: "docker" "start" "-a" "8fd254360830626cc64a992527cd53b5605d03aee22414fb1e5e5260886ae49c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]     Checking reef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.01s
[INFO] running `Command { std: "docker" "inspect" "8fd254360830626cc64a992527cd53b5605d03aee22414fb1e5e5260886ae49c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd254360830626cc64a992527cd53b5605d03aee22414fb1e5e5260886ae49c", kill_on_drop: false }`
[INFO] [stdout] 8fd254360830626cc64a992527cd53b5605d03aee22414fb1e5e5260886ae49c