[INFO] fetching crate syzygy 0.0.6...
[INFO] checking syzygy-0.0.6 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate syzygy 0.0.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate syzygy 0.0.6 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 syzygy 0.0.6
[INFO] finished tweaking crates.io crate syzygy 0.0.6
[INFO] tweaked toml for crates.io crate syzygy 0.0.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.7)
[INFO] [stderr]       Adding erased-serde v0.3.31 (latest: v0.4.4)
[INFO] [stderr]       Adding inventory v0.2.3 (latest: v0.3.15)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding typetag v0.1.8 (latest: v0.2.16)
[INFO] [stderr]       Adding typetag-impl v0.1.8 (latest: v0.2.16)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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 typetag-impl v0.1.8
[INFO] [stderr]   Downloaded typetag v0.1.8
[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] a5b5bd66abc4f518a26335414eee6e740040394339d5e9b6061dca89619ed442
[INFO] running `Command { std: "docker" "start" "-a" "a5b5bd66abc4f518a26335414eee6e740040394339d5e9b6061dca89619ed442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5b5bd66abc4f518a26335414eee6e740040394339d5e9b6061dca89619ed442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b5bd66abc4f518a26335414eee6e740040394339d5e9b6061dca89619ed442", kill_on_drop: false }`
[INFO] [stdout] a5b5bd66abc4f518a26335414eee6e740040394339d5e9b6061dca89619ed442
[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] 57c08b034924e7a789ccb5c54d69c2d1d5fb80f40df751ce9eac1a373b44f9a5
[INFO] running `Command { std: "docker" "start" "-a" "57c08b034924e7a789ccb5c54d69c2d1d5fb80f40df751ce9eac1a373b44f9a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling ghost v0.1.17
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling typetag-impl v0.1.8
[INFO] [stderr]     Checking inventory v0.2.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking typetag v0.1.8
[INFO] [stderr]     Checking syzygy v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.27s
[INFO] running `Command { std: "docker" "inspect" "57c08b034924e7a789ccb5c54d69c2d1d5fb80f40df751ce9eac1a373b44f9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c08b034924e7a789ccb5c54d69c2d1d5fb80f40df751ce9eac1a373b44f9a5", kill_on_drop: false }`
[INFO] [stdout] 57c08b034924e7a789ccb5c54d69c2d1d5fb80f40df751ce9eac1a373b44f9a5
[INFO] checking syzygy-0.0.6 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate syzygy 0.0.6 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate syzygy 0.0.6 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 syzygy 0.0.6
[INFO] finished tweaking crates.io crate syzygy 0.0.6
[INFO] tweaked toml for crates.io crate syzygy 0.0.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.7)
[INFO] [stderr]       Adding erased-serde v0.3.31 (latest: v0.4.4)
[INFO] [stderr]       Adding inventory v0.2.3 (latest: v0.3.15)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding typetag v0.1.8 (latest: v0.2.16)
[INFO] [stderr]       Adding typetag-impl v0.1.8 (latest: v0.2.16)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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] fb8744ba4abd512196941a13ffbc21839634bc5cbf4d13b810b9c07d58520bc3
[INFO] running `Command { std: "docker" "start" "-a" "fb8744ba4abd512196941a13ffbc21839634bc5cbf4d13b810b9c07d58520bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb8744ba4abd512196941a13ffbc21839634bc5cbf4d13b810b9c07d58520bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8744ba4abd512196941a13ffbc21839634bc5cbf4d13b810b9c07d58520bc3", kill_on_drop: false }`
[INFO] [stdout] fb8744ba4abd512196941a13ffbc21839634bc5cbf4d13b810b9c07d58520bc3
[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] 4f14574fcac6a48d1d76793daca81fdf4da918bbc200d44b0e52fcdd00344b69
[INFO] running `Command { std: "docker" "start" "-a" "4f14574fcac6a48d1d76793daca81fdf4da918bbc200d44b0e52fcdd00344b69", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling ghost v0.1.17
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling typetag-impl v0.1.8
[INFO] [stderr]     Checking inventory v0.2.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking typetag v0.1.8
[INFO] [stderr]     Checking syzygy v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.40s
[INFO] running `Command { std: "docker" "inspect" "4f14574fcac6a48d1d76793daca81fdf4da918bbc200d44b0e52fcdd00344b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f14574fcac6a48d1d76793daca81fdf4da918bbc200d44b0e52fcdd00344b69", kill_on_drop: false }`
[INFO] [stdout] 4f14574fcac6a48d1d76793daca81fdf4da918bbc200d44b0e52fcdd00344b69