[INFO] fetching crate kalc 0.9.0...
[INFO] checking kalc-0.9.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate kalc 0.9.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate kalc 0.9.0 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 crates.io crate kalc 0.9.0
[INFO] finished tweaking crates.io crate kalc 0.9.0
[INFO] tweaked toml for crates.io crate kalc 0.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate kalc 0.9.0 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 gnuplot v0.0.39
[INFO] [stderr]   Downloaded rug v1.22.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.1
[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] f4922eefe7c414657fd72396b2ec62025bb13faca61f2cd18fc0098dcfb157e6
[INFO] running `Command { std: "docker" "start" "-a" "f4922eefe7c414657fd72396b2ec62025bb13faca61f2cd18fc0098dcfb157e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4922eefe7c414657fd72396b2ec62025bb13faca61f2cd18fc0098dcfb157e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4922eefe7c414657fd72396b2ec62025bb13faca61f2cd18fc0098dcfb157e6", kill_on_drop: false }`
[INFO] [stdout] f4922eefe7c414657fd72396b2ec62025bb13faca61f2cd18fc0098dcfb157e6
[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] a144ce3f77ef4347949a59f6db9e6d18e7e73060a88ed7de7f5559f84ca29ce8
[INFO] running `Command { std: "docker" "start" "-a" "a144ce3f77ef4347949a59f6db9e6d18e7e73060a88ed7de7f5559f84ca29ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.1
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling rug v1.22.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking gnuplot v0.0.39
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking kalc v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 00s
[INFO] running `Command { std: "docker" "inspect" "a144ce3f77ef4347949a59f6db9e6d18e7e73060a88ed7de7f5559f84ca29ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a144ce3f77ef4347949a59f6db9e6d18e7e73060a88ed7de7f5559f84ca29ce8", kill_on_drop: false }`
[INFO] [stdout] a144ce3f77ef4347949a59f6db9e6d18e7e73060a88ed7de7f5559f84ca29ce8
[INFO] checking kalc-0.9.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate kalc 0.9.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate kalc 0.9.0 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 crates.io crate kalc 0.9.0
[INFO] finished tweaking crates.io crate kalc 0.9.0
[INFO] tweaked toml for crates.io crate kalc 0.9.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate kalc 0.9.0 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] 6454b1132b58cd50ca3987811f597a212123bef0fbc29bb761f86152e4e74018
[INFO] running `Command { std: "docker" "start" "-a" "6454b1132b58cd50ca3987811f597a212123bef0fbc29bb761f86152e4e74018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6454b1132b58cd50ca3987811f597a212123bef0fbc29bb761f86152e4e74018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6454b1132b58cd50ca3987811f597a212123bef0fbc29bb761f86152e4e74018", kill_on_drop: false }`
[INFO] [stdout] 6454b1132b58cd50ca3987811f597a212123bef0fbc29bb761f86152e4e74018
[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] 9d9bb755cb621da548a07874cf0eae4f41cde37be9ce8f77383e43b0d7ae953f
[INFO] running `Command { std: "docker" "start" "-a" "9d9bb755cb621da548a07874cf0eae4f41cde37be9ce8f77383e43b0d7ae953f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.1
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.22.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking gnuplot v0.0.39
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking kalc v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 50s
[INFO] running `Command { std: "docker" "inspect" "9d9bb755cb621da548a07874cf0eae4f41cde37be9ce8f77383e43b0d7ae953f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9bb755cb621da548a07874cf0eae4f41cde37be9ce8f77383e43b0d7ae953f", kill_on_drop: false }`
[INFO] [stdout] 9d9bb755cb621da548a07874cf0eae4f41cde37be9ce8f77383e43b0d7ae953f