[INFO] cloning repository https://github.com/fabracht/ice-try-one
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabracht/ice-try-one" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabracht%2Fice-try-one", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabracht%2Fice-try-one'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb756b690b019a087a09106bc07f0baa5fb544d0
[INFO] checking fabracht/ice-try-one against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabracht%2Fice-try-one" "/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/fabracht/ice-try-one 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/fabracht/ice-try-one
[INFO] finished tweaking git repo https://github.com/fabracht/ice-try-one
[INFO] tweaked toml for git repo https://github.com/fabracht/ice-try-one written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fabracht/ice-try-one 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]  Downloading crates ...
[INFO] [stderr]   Downloaded dashmap v5.1.0
[INFO] [stderr]   Downloaded stun v0.4.2
[INFO] [stderr]   Downloaded md-5 v0.10.1
[INFO] [stderr]   Downloaded webrtc-mdns v0.4.2
[INFO] [stderr]   Downloaded turn v0.5.4
[INFO] [stderr]   Downloaded webrtc-ice v0.6.6
[INFO] [stderr]   Downloaded webrtc-util v0.5.3
[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] 0a8713e9387bf10eda52ea63dbfd701405d9ebc9e36fc02a470df0ae098bdb25
[INFO] running `Command { std: "docker" "start" "-a" "0a8713e9387bf10eda52ea63dbfd701405d9ebc9e36fc02a470df0ae098bdb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a8713e9387bf10eda52ea63dbfd701405d9ebc9e36fc02a470df0ae098bdb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8713e9387bf10eda52ea63dbfd701405d9ebc9e36fc02a470df0ae098bdb25", kill_on_drop: false }`
[INFO] [stdout] 0a8713e9387bf10eda52ea63dbfd701405d9ebc9e36fc02a470df0ae098bdb25
[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] 79f3ef5ffdca2dfd53bef1f92de7450b163ca1ec2fd80dfe1418f6944ae1bb79
[INFO] running `Command { std: "docker" "start" "-a" "79f3ef5ffdca2dfd53bef1f92de7450b163ca1ec2fd80dfe1418f6944ae1bb79", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking waitgroup v0.1.2
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]    Compiling webrtc-util v0.5.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking md-5 v0.10.1
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking dashmap v5.1.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tokio-util v0.7.0
[INFO] [stderr]     Checking stun v0.4.2
[INFO] [stderr]     Checking webrtc-mdns v0.4.2
[INFO] [stderr]     Checking turn v0.5.4
[INFO] [stderr]     Checking webrtc-ice v0.6.6
[INFO] [stderr]     Checking ice_try_one v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.95s
[INFO] running `Command { std: "docker" "inspect" "79f3ef5ffdca2dfd53bef1f92de7450b163ca1ec2fd80dfe1418f6944ae1bb79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f3ef5ffdca2dfd53bef1f92de7450b163ca1ec2fd80dfe1418f6944ae1bb79", kill_on_drop: false }`
[INFO] [stdout] 79f3ef5ffdca2dfd53bef1f92de7450b163ca1ec2fd80dfe1418f6944ae1bb79
[INFO] checking fabracht/ice-try-one against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabracht%2Fice-try-one" "/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/fabracht/ice-try-one 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/fabracht/ice-try-one
[INFO] finished tweaking git repo https://github.com/fabracht/ice-try-one
[INFO] tweaked toml for git repo https://github.com/fabracht/ice-try-one written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fabracht/ice-try-one 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] 7faecefa999c6d88285087461ebc8b9173cd0061ede138f0328150b6e28e79b2
[INFO] running `Command { std: "docker" "start" "-a" "7faecefa999c6d88285087461ebc8b9173cd0061ede138f0328150b6e28e79b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7faecefa999c6d88285087461ebc8b9173cd0061ede138f0328150b6e28e79b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7faecefa999c6d88285087461ebc8b9173cd0061ede138f0328150b6e28e79b2", kill_on_drop: false }`
[INFO] [stdout] 7faecefa999c6d88285087461ebc8b9173cd0061ede138f0328150b6e28e79b2
[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] d3edb62fde5611b6495bfb2366a2045f42d27960d863a810c0c40a68725809ff
[INFO] running `Command { std: "docker" "start" "-a" "d3edb62fde5611b6495bfb2366a2045f42d27960d863a810c0c40a68725809ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking waitgroup v0.1.2
[INFO] [stderr]    Compiling webrtc-util v0.5.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking md-5 v0.10.1
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking dashmap v5.1.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tokio-util v0.7.0
[INFO] [stderr]     Checking stun v0.4.2
[INFO] [stderr]     Checking webrtc-mdns v0.4.2
[INFO] [stderr]     Checking turn v0.5.4
[INFO] [stderr]     Checking webrtc-ice v0.6.6
[INFO] [stderr]     Checking ice_try_one v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.04s
[INFO] running `Command { std: "docker" "inspect" "d3edb62fde5611b6495bfb2366a2045f42d27960d863a810c0c40a68725809ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3edb62fde5611b6495bfb2366a2045f42d27960d863a810c0c40a68725809ff", kill_on_drop: false }`
[INFO] [stdout] d3edb62fde5611b6495bfb2366a2045f42d27960d863a810c0c40a68725809ff