[INFO] cloning repository https://github.com/AnthonyUtt/assistant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnthonyUtt/assistant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyUtt%2Fassistant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyUtt%2Fassistant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4b89808ca956d83aec1df705d30e0c497464047
[INFO] checking AnthonyUtt/assistant against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyUtt%2Fassistant" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnthonyUtt/assistant 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/AnthonyUtt/assistant
[INFO] finished tweaking git repo https://github.com/AnthonyUtt/assistant
[INFO] tweaked toml for git repo https://github.com/AnthonyUtt/assistant written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AnthonyUtt/assistant 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rumqttc v0.23.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.51
[INFO] [stderr]   Downloaded thiserror v1.0.51
[INFO] [stderr]   Downloaded proc-macro2 v1.0.71
[INFO] [stderr]   Downloaded mio v0.8.10
[INFO] [stderr]   Downloaded syn v2.0.42
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] [stderr]   Downloaded ring v0.17.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b075d4ada7ad80a1231e665aae08abdfa764e0112759ba89b59b39319fd478b6
[INFO] running `Command { std: "docker" "start" "-a" "b075d4ada7ad80a1231e665aae08abdfa764e0112759ba89b59b39319fd478b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b075d4ada7ad80a1231e665aae08abdfa764e0112759ba89b59b39319fd478b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b075d4ada7ad80a1231e665aae08abdfa764e0112759ba89b59b39319fd478b6", kill_on_drop: false }`
[INFO] [stdout] b075d4ada7ad80a1231e665aae08abdfa764e0112759ba89b59b39319fd478b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c18ffc96c8f33f77da108b22c2616211a6b471fbfde7b5a1f574c1f237b8a51a
[INFO] running `Command { std: "docker" "start" "-a" "c18ffc96c8f33f77da108b22c2616211a6b471fbfde7b5a1f574c1f237b8a51a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.23.0
[INFO] [stderr]     Checking cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.59s
[INFO] running `Command { std: "docker" "inspect" "c18ffc96c8f33f77da108b22c2616211a6b471fbfde7b5a1f574c1f237b8a51a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18ffc96c8f33f77da108b22c2616211a6b471fbfde7b5a1f574c1f237b8a51a", kill_on_drop: false }`
[INFO] [stdout] c18ffc96c8f33f77da108b22c2616211a6b471fbfde7b5a1f574c1f237b8a51a
[INFO] checking AnthonyUtt/assistant against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyUtt%2Fassistant" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnthonyUtt/assistant 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/AnthonyUtt/assistant
[INFO] finished tweaking git repo https://github.com/AnthonyUtt/assistant
[INFO] tweaked toml for git repo https://github.com/AnthonyUtt/assistant written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AnthonyUtt/assistant 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 21e81e1a1479b28b7d870552920370b75157598b192557eaafc05829ea12be58
[INFO] running `Command { std: "docker" "start" "-a" "21e81e1a1479b28b7d870552920370b75157598b192557eaafc05829ea12be58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21e81e1a1479b28b7d870552920370b75157598b192557eaafc05829ea12be58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e81e1a1479b28b7d870552920370b75157598b192557eaafc05829ea12be58", kill_on_drop: false }`
[INFO] [stdout] 21e81e1a1479b28b7d870552920370b75157598b192557eaafc05829ea12be58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d5939ed6369734e336eaab5b19780653c2f1c3ed1389765ab619d1025d11b7fd
[INFO] running `Command { std: "docker" "start" "-a" "d5939ed6369734e336eaab5b19780653c2f1c3ed1389765ab619d1025d11b7fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.23.0
[INFO] [stderr]     Checking cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.81s
[INFO] running `Command { std: "docker" "inspect" "d5939ed6369734e336eaab5b19780653c2f1c3ed1389765ab619d1025d11b7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5939ed6369734e336eaab5b19780653c2f1c3ed1389765ab619d1025d11b7fd", kill_on_drop: false }`
[INFO] [stdout] d5939ed6369734e336eaab5b19780653c2f1c3ed1389765ab619d1025d11b7fd