[INFO] cloning repository https://github.com/vgskye/babysitter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vgskye/babysitter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgskye%2Fbabysitter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgskye%2Fbabysitter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adef4d01a55f9db93132a2b7185f1863b5814e68
[INFO] checking vgskye/babysitter against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgskye%2Fbabysitter" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vgskye/babysitter 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/vgskye/babysitter
[INFO] finished tweaking git repo https://github.com/vgskye/babysitter
[INFO] tweaked toml for git repo https://github.com/vgskye/babysitter written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vgskye/babysitter 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 git repository `https://github.com/vgskye/rpackwiz`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded murmur2 v0.1.0
[INFO] [stderr]   Downloaded toml_edit v0.22.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d7c9f9640f77db596679d1d4aa6444f3a6670638a29b350681d290fb2e9daa8f
[INFO] running `Command { std: "docker" "start" "-a" "d7c9f9640f77db596679d1d4aa6444f3a6670638a29b350681d290fb2e9daa8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7c9f9640f77db596679d1d4aa6444f3a6670638a29b350681d290fb2e9daa8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c9f9640f77db596679d1d4aa6444f3a6670638a29b350681d290fb2e9daa8f", kill_on_drop: false }`
[INFO] [stdout] d7c9f9640f77db596679d1d4aa6444f3a6670638a29b350681d290fb2e9daa8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7102f28e0288d07a077710a8cd4dd3668a7e6174cdecf115473ba7e2037916f9
[INFO] running `Command { std: "docker" "start" "-a" "7102f28e0288d07a077710a8cd4dd3668a7e6174cdecf115473ba7e2037916f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking rustls-pki-types v1.3.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling rustls v0.22.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking murmur2 v0.1.0
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking ring v0.17.8
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking toml_edit v0.22.8
[INFO] [stderr]     Checking toml v0.8.12
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking rpackwiz v0.1.0 (https://github.com/vgskye/rpackwiz#b70bb4e7)
[INFO] [stderr]     Checking babysitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.76s
[INFO] running `Command { std: "docker" "inspect" "7102f28e0288d07a077710a8cd4dd3668a7e6174cdecf115473ba7e2037916f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7102f28e0288d07a077710a8cd4dd3668a7e6174cdecf115473ba7e2037916f9", kill_on_drop: false }`
[INFO] [stdout] 7102f28e0288d07a077710a8cd4dd3668a7e6174cdecf115473ba7e2037916f9
[INFO] checking vgskye/babysitter against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgskye%2Fbabysitter" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vgskye/babysitter 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/vgskye/babysitter
[INFO] finished tweaking git repo https://github.com/vgskye/babysitter
[INFO] tweaked toml for git repo https://github.com/vgskye/babysitter written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vgskye/babysitter 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7c65855802939f8e4cf5d65a17c364a3f2577e950124c2b118297738ca07fc33
[INFO] running `Command { std: "docker" "start" "-a" "7c65855802939f8e4cf5d65a17c364a3f2577e950124c2b118297738ca07fc33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c65855802939f8e4cf5d65a17c364a3f2577e950124c2b118297738ca07fc33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c65855802939f8e4cf5d65a17c364a3f2577e950124c2b118297738ca07fc33", kill_on_drop: false }`
[INFO] [stdout] 7c65855802939f8e4cf5d65a17c364a3f2577e950124c2b118297738ca07fc33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d3522eab82cd601601c47090c675e396a496dd02134b608d94d789cab5510e30
[INFO] running `Command { std: "docker" "start" "-a" "d3522eab82cd601601c47090c675e396a496dd02134b608d94d789cab5510e30", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking rustls-pki-types v1.3.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling rustls v0.22.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking murmur2 v0.1.0
[INFO] [stderr]     Checking webpki-roots v0.26.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking ring v0.17.8
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking rustls-webpki v0.102.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking ureq v2.9.6
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking toml_edit v0.22.8
[INFO] [stderr]     Checking toml v0.8.12
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking rpackwiz v0.1.0 (https://github.com/vgskye/rpackwiz#b70bb4e7)
[INFO] [stderr]     Checking babysitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.77s
[INFO] running `Command { std: "docker" "inspect" "d3522eab82cd601601c47090c675e396a496dd02134b608d94d789cab5510e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3522eab82cd601601c47090c675e396a496dd02134b608d94d789cab5510e30", kill_on_drop: false }`
[INFO] [stdout] d3522eab82cd601601c47090c675e396a496dd02134b608d94d789cab5510e30