[INFO] cloning repository https://github.com/xxuejie/wavm-aot-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xxuejie/wavm-aot-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxuejie%2Fwavm-aot-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxuejie%2Fwavm-aot-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53576e8490c07406ef2577e5db265e0f9b0fdb17
[INFO] checking xxuejie/wavm-aot-generator against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxuejie%2Fwavm-aot-generator" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xxuejie/wavm-aot-generator 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 git repo https://github.com/xxuejie/wavm-aot-generator
[INFO] finished tweaking git repo https://github.com/xxuejie/wavm-aot-generator
[INFO] tweaked toml for git repo https://github.com/xxuejie/wavm-aot-generator written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xxuejie/wavm-aot-generator 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmparser v0.51.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 48b96c1b60df19501ed8cdae2b6080666ae9ee9737558e503373d9a3bc09863f
[INFO] running `Command { std: "docker" "start" "-a" "48b96c1b60df19501ed8cdae2b6080666ae9ee9737558e503373d9a3bc09863f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b96c1b60df19501ed8cdae2b6080666ae9ee9737558e503373d9a3bc09863f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b96c1b60df19501ed8cdae2b6080666ae9ee9737558e503373d9a3bc09863f", kill_on_drop: false }`
[INFO] [stdout] 48b96c1b60df19501ed8cdae2b6080666ae9ee9737558e503373d9a3bc09863f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 57d36c30f9236af666e1afef5d38d69f5af948c7fe54c097acd47c1f8cd4b5ba
[INFO] running `Command { std: "docker" "start" "-a" "57d36c30f9236af666e1afef5d38d69f5af948c7fe54c097acd47c1f8cd4b5ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking wasmparser v0.51.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking wavm-aot-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/main.rs:424:46
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                                              ^^^^          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("Invalid global value {:?} for type {:?}", ...,)
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("{}", "Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/main.rs:431:46
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                                              ^^^^          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("Invalid global value {:?} for type {:?}", ...,)
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("{}", "Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/main.rs:424:46
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                                              ^^^^          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("Invalid global value {:?} for type {:?}", ...,)
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 panic!("{}", "Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains unused formatting placeholders
[INFO] [stdout]    --> src/main.rs:431:46
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                                              ^^^^          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing arguments
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("Invalid global value {:?} for type {:?}", ...,)
[INFO] [stdout]     |                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 431 |                 panic!("{}", "Invalid global value {:?} for type {:?}",)
[INFO] [stdout]     |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "57d36c30f9236af666e1afef5d38d69f5af948c7fe54c097acd47c1f8cd4b5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d36c30f9236af666e1afef5d38d69f5af948c7fe54c097acd47c1f8cd4b5ba", kill_on_drop: false }`
[INFO] [stdout] 57d36c30f9236af666e1afef5d38d69f5af948c7fe54c097acd47c1f8cd4b5ba
[INFO] checking xxuejie/wavm-aot-generator against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxuejie%2Fwavm-aot-generator" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xxuejie/wavm-aot-generator 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 git repo https://github.com/xxuejie/wavm-aot-generator
[INFO] finished tweaking git repo https://github.com/xxuejie/wavm-aot-generator
[INFO] tweaked toml for git repo https://github.com/xxuejie/wavm-aot-generator written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/xxuejie/wavm-aot-generator 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 90524a072b51b6f5e23a9f8860809953a39e17fbe0af7df8b138da3eb0cbc8aa
[INFO] running `Command { std: "docker" "start" "-a" "90524a072b51b6f5e23a9f8860809953a39e17fbe0af7df8b138da3eb0cbc8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90524a072b51b6f5e23a9f8860809953a39e17fbe0af7df8b138da3eb0cbc8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90524a072b51b6f5e23a9f8860809953a39e17fbe0af7df8b138da3eb0cbc8aa", kill_on_drop: false }`
[INFO] [stdout] 90524a072b51b6f5e23a9f8860809953a39e17fbe0af7df8b138da3eb0cbc8aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2862d28886b5c1f3f3d70d7ff0090c35a86a0bd19f6a4f35a0764c428c056625
[INFO] running `Command { std: "docker" "start" "-a" "2862d28886b5c1f3f3d70d7ff0090c35a86a0bd19f6a4f35a0764c428c056625", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking wasmparser v0.51.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.11/src/exec.rs:756:13
[INFO] [stdout]     |
[INFO] [stdout] 756 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 757 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 758 | |                 self.cache,
[INFO] [stdout] 759 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 766 | |                 Quit => return Some(Quit),
[INFO] [stdout] 767 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2862d28886b5c1f3f3d70d7ff0090c35a86a0bd19f6a4f35a0764c428c056625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2862d28886b5c1f3f3d70d7ff0090c35a86a0bd19f6a4f35a0764c428c056625", kill_on_drop: false }`
[INFO] [stdout] 2862d28886b5c1f3f3d70d7ff0090c35a86a0bd19f6a4f35a0764c428c056625