[INFO] fetching crate tty-spawn 0.4.0...
[INFO] checking tty-spawn-0.4.0 against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657-1
[INFO] extracting crate tty-spawn 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tty-spawn 0.4.0
[INFO] finished tweaking crates.io crate tty-spawn 0.4.0
[INFO] tweaked toml for crates.io crate tty-spawn 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tty-spawn 0.4.0 on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding nix v0.29.0 (available: v0.31.3)
[INFO] [stderr]       Adding signal-hook v0.3.18 (available: v0.4.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f018cb700dc872523cb9b48a97d41572139e67a38baa389c5d9b8869c8b95eb5
[INFO] running `Command { std: "docker" "start" "-a" "f018cb700dc872523cb9b48a97d41572139e67a38baa389c5d9b8869c8b95eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f018cb700dc872523cb9b48a97d41572139e67a38baa389c5d9b8869c8b95eb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f018cb700dc872523cb9b48a97d41572139e67a38baa389c5d9b8869c8b95eb5", kill_on_drop: false }`
[INFO] [stdout] f018cb700dc872523cb9b48a97d41572139e67a38baa389c5d9b8869c8b95eb5
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebd445aaa75280774a20dc2b3bbf6a3b186c5f6507f7baad3f42c9becc00ed03
[INFO] running `Command { std: "docker" "start" "-a" "ebd445aaa75280774a20dc2b3bbf6a3b186c5f6507f7baad3f42c9becc00ed03", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking tty-spawn v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `()` is non-empty
[INFO] [stdout]    --> src/lib.rs:322:11
[INFO] [stdout]     |
[INFO] [stdout] 322 |     match execvp(&args[0], &args)? {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the matched value is of type `()`
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 322 ~     match execvp(&args[0], &args)? {
[INFO] [stdout] 323 +         _ => todo!(),
[INFO] [stdout] 324 ~     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tty-spawn` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `()` is non-empty
[INFO] [stdout]    --> src/lib.rs:322:11
[INFO] [stdout]     |
[INFO] [stdout] 322 |     match execvp(&args[0], &args)? {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the matched value is of type `()`
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 322 ~     match execvp(&args[0], &args)? {
[INFO] [stdout] 323 +         _ => todo!(),
[INFO] [stdout] 324 ~     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tty-spawn` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ebd445aaa75280774a20dc2b3bbf6a3b186c5f6507f7baad3f42c9becc00ed03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd445aaa75280774a20dc2b3bbf6a3b186c5f6507f7baad3f42c9becc00ed03", kill_on_drop: false }`
[INFO] [stdout] ebd445aaa75280774a20dc2b3bbf6a3b186c5f6507f7baad3f42c9becc00ed03