[INFO] fetching crate bicoro 0.19.0...
[INFO] checking bicoro-0.19.0 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] extracting crate bicoro 0.19.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate bicoro 0.19.0 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bicoro 0.19.0
[INFO] finished tweaking crates.io crate bicoro 0.19.0
[INFO] tweaked toml for crates.io crate bicoro 0.19.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate bicoro 0.19.0 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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a289baefa2dd6abb12444e9a35a7f89c3b341f1dcfcd8cf2d67d4046eb16e3
[INFO] running `Command { std: "docker" "start" "-a" "30a289baefa2dd6abb12444e9a35a7f89c3b341f1dcfcd8cf2d67d4046eb16e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a289baefa2dd6abb12444e9a35a7f89c3b341f1dcfcd8cf2d67d4046eb16e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a289baefa2dd6abb12444e9a35a7f89c3b341f1dcfcd8cf2d67d4046eb16e3", kill_on_drop: false }`
[INFO] [stdout] 30a289baefa2dd6abb12444e9a35a7f89c3b341f1dcfcd8cf2d67d4046eb16e3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f35a9c411a9f8dc4ed042d7a1a4c3bac5391088d2c5184b480ab28d126f8495
[INFO] running `Command { std: "docker" "start" "-a" "3f35a9c411a9f8dc4ed042d7a1a4c3bac5391088d2c5184b480ab28d126f8495", kill_on_drop: false }`
[INFO] [stderr]     Checking do-notation v0.1.3
[INFO] [stderr]     Checking bicoro v0.19.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::compat::*`
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use crate::compat::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compat::*`
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use crate::compat::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> examples/fsm-input-driven.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             StepResult::Done(_) => unreachable!(), // just for this case, as its a non-exiting coroutine
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^ matches no values because `Never` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "3f35a9c411a9f8dc4ed042d7a1a4c3bac5391088d2c5184b480ab28d126f8495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f35a9c411a9f8dc4ed042d7a1a4c3bac5391088d2c5184b480ab28d126f8495", kill_on_drop: false }`
[INFO] [stdout] 3f35a9c411a9f8dc4ed042d7a1a4c3bac5391088d2c5184b480ab28d126f8495