[INFO] cloning repository https://github.com/vvilhonen/nethoscope
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vvilhonen/nethoscope" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2Fnethoscope", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2Fnethoscope'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58595d6e8254c635253424b25249376a27df2f61
[INFO] checking vvilhonen/nethoscope against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2Fnethoscope" "/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/vvilhonen/nethoscope 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/vvilhonen/nethoscope
[INFO] finished tweaking git repo https://github.com/vvilhonen/nethoscope
[INFO] tweaked toml for git repo https://github.com/vvilhonen/nethoscope written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vvilhonen/nethoscope 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pcap v0.8.1
[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] d7f762cae387aaf9af823754787aab322e9619f22b77e761980145f6b45f3e26
[INFO] running `Command { std: "docker" "start" "-a" "d7f762cae387aaf9af823754787aab322e9619f22b77e761980145f6b45f3e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7f762cae387aaf9af823754787aab322e9619f22b77e761980145f6b45f3e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7f762cae387aaf9af823754787aab322e9619f22b77e761980145f6b45f3e26", kill_on_drop: false }`
[INFO] [stdout] d7f762cae387aaf9af823754787aab322e9619f22b77e761980145f6b45f3e26
[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] 0716629f2d46060089e3b559b04cfec2e635001693dfc70e94dd0f3e67fb9b78
[INFO] running `Command { std: "docker" "start" "-a" "0716629f2d46060089e3b559b04cfec2e635001693dfc70e94dd0f3e67fb9b78", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking alsa-sys v0.3.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking alsa v0.4.3
[INFO] [stderr]    Compiling pcap v0.8.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking nethoscope v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "0716629f2d46060089e3b559b04cfec2e635001693dfc70e94dd0f3e67fb9b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0716629f2d46060089e3b559b04cfec2e635001693dfc70e94dd0f3e67fb9b78", kill_on_drop: false }`
[INFO] [stdout] 0716629f2d46060089e3b559b04cfec2e635001693dfc70e94dd0f3e67fb9b78
[INFO] checking vvilhonen/nethoscope against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2Fnethoscope" "/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/vvilhonen/nethoscope on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vvilhonen/nethoscope
[INFO] finished tweaking git repo https://github.com/vvilhonen/nethoscope
[INFO] tweaked toml for git repo https://github.com/vvilhonen/nethoscope written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vvilhonen/nethoscope 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1066cfbbd79104599ccb089a40fd8854b49565e5215b247d7ab2805b7be6385
[INFO] running `Command { std: "docker" "start" "-a" "c1066cfbbd79104599ccb089a40fd8854b49565e5215b247d7ab2805b7be6385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1066cfbbd79104599ccb089a40fd8854b49565e5215b247d7ab2805b7be6385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1066cfbbd79104599ccb089a40fd8854b49565e5215b247d7ab2805b7be6385", kill_on_drop: false }`
[INFO] [stdout] c1066cfbbd79104599ccb089a40fd8854b49565e5215b247d7ab2805b7be6385
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2c42174eb8417d3f3fd05735a4d4b9a701d90f3071d5426cbd2ac931104eb48
[INFO] running `Command { std: "docker" "start" "-a" "f2c42174eb8417d3f3fd05735a4d4b9a701d90f3071d5426cbd2ac931104eb48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking alsa-sys v0.3.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling pcap v0.8.1
[INFO] [stderr]     Checking alsa v0.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking nethoscope v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.19s
[INFO] running `Command { std: "docker" "inspect" "f2c42174eb8417d3f3fd05735a4d4b9a701d90f3071d5426cbd2ac931104eb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c42174eb8417d3f3fd05735a4d4b9a701d90f3071d5426cbd2ac931104eb48", kill_on_drop: false }`
[INFO] [stdout] f2c42174eb8417d3f3fd05735a4d4b9a701d90f3071d5426cbd2ac931104eb48