[INFO] cloning repository https://github.com/dannasman/qelvin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannasman/qelvin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannasman%2Fqelvin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannasman%2Fqelvin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a82d3ae3b78f7db4cd2fc95284b064511963e8a6
[INFO] checking dannasman/qelvin against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannasman%2Fqelvin" "/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/dannasman/qelvin 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/dannasman/qelvin
[INFO] finished tweaking git repo https://github.com/dannasman/qelvin
[INFO] tweaked toml for git repo https://github.com/dannasman/qelvin written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dannasman/qelvin 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] 7e95732d6754238846d37b27355466b91a22837d530ccb7ee48b2e35950abc94
[INFO] running `Command { std: "docker" "start" "-a" "7e95732d6754238846d37b27355466b91a22837d530ccb7ee48b2e35950abc94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e95732d6754238846d37b27355466b91a22837d530ccb7ee48b2e35950abc94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e95732d6754238846d37b27355466b91a22837d530ccb7ee48b2e35950abc94", kill_on_drop: false }`
[INFO] [stdout] 7e95732d6754238846d37b27355466b91a22837d530ccb7ee48b2e35950abc94
[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] 2c4ef312ac52595bbcc2ab987ff9a5501d91001655dc66082d41c99f80a6fcaa
[INFO] running `Command { std: "docker" "start" "-a" "2c4ef312ac52595bbcc2ab987ff9a5501d91001655dc66082d41c99f80a6fcaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.12
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling pyo3-ffi v0.19.2
[INFO] [stderr]    Compiling pyo3 v0.19.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.19.2
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]     Checking qelvin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.42s
[INFO] running `Command { std: "docker" "inspect" "2c4ef312ac52595bbcc2ab987ff9a5501d91001655dc66082d41c99f80a6fcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c4ef312ac52595bbcc2ab987ff9a5501d91001655dc66082d41c99f80a6fcaa", kill_on_drop: false }`
[INFO] [stdout] 2c4ef312ac52595bbcc2ab987ff9a5501d91001655dc66082d41c99f80a6fcaa
[INFO] checking dannasman/qelvin against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannasman%2Fqelvin" "/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/dannasman/qelvin 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/dannasman/qelvin
[INFO] finished tweaking git repo https://github.com/dannasman/qelvin
[INFO] tweaked toml for git repo https://github.com/dannasman/qelvin written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dannasman/qelvin 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] e24b8229590a0833dd4782106beb6952102fb8352b0edaae9645aac0e494dc97
[INFO] running `Command { std: "docker" "start" "-a" "e24b8229590a0833dd4782106beb6952102fb8352b0edaae9645aac0e494dc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e24b8229590a0833dd4782106beb6952102fb8352b0edaae9645aac0e494dc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24b8229590a0833dd4782106beb6952102fb8352b0edaae9645aac0e494dc97", kill_on_drop: false }`
[INFO] [stdout] e24b8229590a0833dd4782106beb6952102fb8352b0edaae9645aac0e494dc97
[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] 118b2c62f7f7c2627a897bcf70e60426d5e3376dfd5fa729c386dd8c332ad8f8
[INFO] running `Command { std: "docker" "start" "-a" "118b2c62f7f7c2627a897bcf70e60426d5e3376dfd5fa729c386dd8c332ad8f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]    Compiling pyo3-ffi v0.19.2
[INFO] [stderr]    Compiling pyo3 v0.19.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.19.2
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]     Checking qelvin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.61s
[INFO] running `Command { std: "docker" "inspect" "118b2c62f7f7c2627a897bcf70e60426d5e3376dfd5fa729c386dd8c332ad8f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118b2c62f7f7c2627a897bcf70e60426d5e3376dfd5fa729c386dd8c332ad8f8", kill_on_drop: false }`
[INFO] [stdout] 118b2c62f7f7c2627a897bcf70e60426d5e3376dfd5fa729c386dd8c332ad8f8