[INFO] fetching crate control-flow 0.1.1...
[INFO] checking control-flow-0.1.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate control-flow 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate control-flow 0.1.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate control-flow 0.1.1
[INFO] finished tweaking crates.io crate control-flow 0.1.1
[INFO] tweaked toml for crates.io crate control-flow 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de26b422a0f21785ad3073238b343ce42e149132cd9deebd99dc3426de444f59
[INFO] running `Command { std: "docker" "start" "-a" "de26b422a0f21785ad3073238b343ce42e149132cd9deebd99dc3426de444f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de26b422a0f21785ad3073238b343ce42e149132cd9deebd99dc3426de444f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de26b422a0f21785ad3073238b343ce42e149132cd9deebd99dc3426de444f59", kill_on_drop: false }`
[INFO] [stdout] de26b422a0f21785ad3073238b343ce42e149132cd9deebd99dc3426de444f59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24873cbc1fc20bbd9e3cecddd17a3284387551f745ab6ea80dc518f68eed417f
[INFO] running `Command { std: "docker" "start" "-a" "24873cbc1fc20bbd9e3cecddd17a3284387551f745ab6ea80dc518f68eed417f", kill_on_drop: false }`
[INFO] [stderr]     Checking control-flow v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "24873cbc1fc20bbd9e3cecddd17a3284387551f745ab6ea80dc518f68eed417f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24873cbc1fc20bbd9e3cecddd17a3284387551f745ab6ea80dc518f68eed417f", kill_on_drop: false }`
[INFO] [stdout] 24873cbc1fc20bbd9e3cecddd17a3284387551f745ab6ea80dc518f68eed417f
[INFO] checking control-flow-0.1.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate control-flow 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate control-flow 0.1.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate control-flow 0.1.1
[INFO] finished tweaking crates.io crate control-flow 0.1.1
[INFO] tweaked toml for crates.io crate control-flow 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a42ebc4d7852d0af5f526991466653f477c8d4e6ae0d8c7e78262c1464acd234
[INFO] running `Command { std: "docker" "start" "-a" "a42ebc4d7852d0af5f526991466653f477c8d4e6ae0d8c7e78262c1464acd234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a42ebc4d7852d0af5f526991466653f477c8d4e6ae0d8c7e78262c1464acd234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a42ebc4d7852d0af5f526991466653f477c8d4e6ae0d8c7e78262c1464acd234", kill_on_drop: false }`
[INFO] [stdout] a42ebc4d7852d0af5f526991466653f477c8d4e6ae0d8c7e78262c1464acd234
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28bcbf2d54216e47d29cd9a95fe5553834bd8f4de356503041a9cdfb48df517c
[INFO] running `Command { std: "docker" "start" "-a" "28bcbf2d54216e47d29cd9a95fe5553834bd8f4de356503041a9cdfb48df517c", kill_on_drop: false }`
[INFO] [stderr]     Checking control-flow v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     (break) => { $crate::Command::Break };
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] ...
[INFO] [stdout] 99 |             run_loop!(defer!(break));
[INFO] [stdout]    |                       ------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `defer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:56:21
[INFO] [stdout]     |
[INFO] [stdout] 56  |     (continue) => { $crate::Command::Continue };
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] ...
[INFO] [stdout] 110 |             run_loop!(defer!(continue));
[INFO] [stdout]     |                       ---------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `defer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:53:29
[INFO] [stdout]     |
[INFO] [stdout] 53  |     (return $val:expr) => { $crate::Command::Return($val) };
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] ...
[INFO] [stdout] 119 |         run!(defer!(return));
[INFO] [stdout]     |              -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `defer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Command<bool, _>`
[INFO] [stdout]    --> src/lib.rs:127:17
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut x = defer!(return false);
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |             run!(x);
[INFO] [stdout]     |                  - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving `x` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let mut x: Command<bool, _> = defer!(return false);
[INFO] [stdout]     |                      ++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `control-flow` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "28bcbf2d54216e47d29cd9a95fe5553834bd8f4de356503041a9cdfb48df517c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28bcbf2d54216e47d29cd9a95fe5553834bd8f4de356503041a9cdfb48df517c", kill_on_drop: false }`
[INFO] [stdout] 28bcbf2d54216e47d29cd9a95fe5553834bd8f4de356503041a9cdfb48df517c