[INFO] fetching crate doubter-macros 0.1.0...
[INFO] checking doubter-macros-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate doubter-macros 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate doubter-macros 0.1.0 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 doubter-macros 0.1.0
[INFO] finished tweaking crates.io crate doubter-macros 0.1.0
[INFO] tweaked toml for crates.io crate doubter-macros 0.1.0 written to /workspace/builds/worker-1-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 12 packages
[INFO] [stderr]       Adding bitflags v0.9.1 (latest: v2.5.0)
[INFO] [stderr]       Adding bytecount v0.3.2 (latest: v0.6.7)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding proc-macro-hack v0.4.3 (latest: v0.5.20+deprecated)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding pulldown-cmark v0.1.2 (latest: v0.10.2)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.3
[INFO] [stderr]   Downloaded doubter-impl v0.1.0
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.3
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6de8a5a05897010b96b83a73003ff5e261f359ae5482c7a8584f6d6d743bcac3
[INFO] running `Command { std: "docker" "start" "-a" "6de8a5a05897010b96b83a73003ff5e261f359ae5482c7a8584f6d6d743bcac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6de8a5a05897010b96b83a73003ff5e261f359ae5482c7a8584f6d6d743bcac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6de8a5a05897010b96b83a73003ff5e261f359ae5482c7a8584f6d6d743bcac3", kill_on_drop: false }`
[INFO] [stdout] 6de8a5a05897010b96b83a73003ff5e261f359ae5482c7a8584f6d6d743bcac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1e8365d8e9ec9b3ad58135c1744b1912338ca9626e0dcc1890c1398a7b99baa1
[INFO] running `Command { std: "docker" "start" "-a" "1e8365d8e9ec9b3ad58135c1744b1912338ca9626e0dcc1890c1398a7b99baa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.3
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking proc-macro-hack v0.4.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking doubter-impl v0.1.0
[INFO] [stderr]     Checking doubter-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "1e8365d8e9ec9b3ad58135c1744b1912338ca9626e0dcc1890c1398a7b99baa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8365d8e9ec9b3ad58135c1744b1912338ca9626e0dcc1890c1398a7b99baa1", kill_on_drop: false }`
[INFO] [stdout] 1e8365d8e9ec9b3ad58135c1744b1912338ca9626e0dcc1890c1398a7b99baa1
[INFO] checking doubter-macros-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate doubter-macros 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate doubter-macros 0.1.0 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 doubter-macros 0.1.0
[INFO] finished tweaking crates.io crate doubter-macros 0.1.0
[INFO] tweaked toml for crates.io crate doubter-macros 0.1.0 written to /workspace/builds/worker-1-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 12 packages
[INFO] [stderr]       Adding bitflags v0.9.1 (latest: v2.5.0)
[INFO] [stderr]       Adding bytecount v0.3.2 (latest: v0.6.7)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding proc-macro-hack v0.4.3 (latest: v0.5.20+deprecated)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding pulldown-cmark v0.1.2 (latest: v0.10.2)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 005cff03782b1dff68545af7133ecee04e2445e0ca5f9b98ec601a312c5cc739
[INFO] running `Command { std: "docker" "start" "-a" "005cff03782b1dff68545af7133ecee04e2445e0ca5f9b98ec601a312c5cc739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "005cff03782b1dff68545af7133ecee04e2445e0ca5f9b98ec601a312c5cc739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "005cff03782b1dff68545af7133ecee04e2445e0ca5f9b98ec601a312c5cc739", kill_on_drop: false }`
[INFO] [stdout] 005cff03782b1dff68545af7133ecee04e2445e0ca5f9b98ec601a312c5cc739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f26f6b475f8daf21770cc8be7146f227bf45723b3b1562f908d9b72c03540104
[INFO] running `Command { std: "docker" "start" "-a" "f26f6b475f8daf21770cc8be7146f227bf45723b3b1562f908d9b72c03540104", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.3
[INFO] [stderr]     Checking proc-macro-hack v0.4.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking doubter-impl v0.1.0
[INFO] [stderr]     Checking doubter-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "f26f6b475f8daf21770cc8be7146f227bf45723b3b1562f908d9b72c03540104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f26f6b475f8daf21770cc8be7146f227bf45723b3b1562f908d9b72c03540104", kill_on_drop: false }`
[INFO] [stdout] f26f6b475f8daf21770cc8be7146f227bf45723b3b1562f908d9b72c03540104