[INFO] cloning repository https://github.com/cicvedu/rust-arceos-wty4427300
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cicvedu/rust-arceos-wty4427300" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-arceos-wty4427300", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-arceos-wty4427300'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89b41781ba96235beee6e0ad2f57225472d45258
[INFO] checking cicvedu/rust-arceos-wty4427300 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-arceos-wty4427300" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cicvedu/rust-arceos-wty4427300 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/cicvedu/rust-arceos-wty4427300
[INFO] finished tweaking git repo https://github.com/cicvedu/rust-arceos-wty4427300
[INFO] tweaked toml for git repo https://github.com/cicvedu/rust-arceos-wty4427300 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cicvedu/rust-arceos-wty4427300 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bc87569301804c46fb13286ae416917e3ce9598164368c83f17e6403d7576a1e
[INFO] running `Command { std: "docker" "start" "-a" "bc87569301804c46fb13286ae416917e3ce9598164368c83f17e6403d7576a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc87569301804c46fb13286ae416917e3ce9598164368c83f17e6403d7576a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc87569301804c46fb13286ae416917e3ce9598164368c83f17e6403d7576a1e", kill_on_drop: false }`
[INFO] [stdout] bc87569301804c46fb13286ae416917e3ce9598164368c83f17e6403d7576a1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 89788c7abe37c703c6a4be9b8f50a4e5bead24eea410d0274011bf9ef9ec82c2
[INFO] running `Command { std: "docker" "start" "-a" "89788c7abe37c703c6a4be9b8f50a4e5bead24eea410d0274011bf9ef9ec82c2", kill_on_drop: false }`
[INFO] [stderr]     Checking arceos v5.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "89788c7abe37c703c6a4be9b8f50a4e5bead24eea410d0274011bf9ef9ec82c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89788c7abe37c703c6a4be9b8f50a4e5bead24eea410d0274011bf9ef9ec82c2", kill_on_drop: false }`
[INFO] [stdout] 89788c7abe37c703c6a4be9b8f50a4e5bead24eea410d0274011bf9ef9ec82c2
[INFO] checking cicvedu/rust-arceos-wty4427300 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-arceos-wty4427300" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cicvedu/rust-arceos-wty4427300 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/cicvedu/rust-arceos-wty4427300
[INFO] finished tweaking git repo https://github.com/cicvedu/rust-arceos-wty4427300
[INFO] tweaked toml for git repo https://github.com/cicvedu/rust-arceos-wty4427300 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cicvedu/rust-arceos-wty4427300 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 944c074a118eccc6453867ab9d16e854caa99b1daccf9eba564dfe284db62628
[INFO] running `Command { std: "docker" "start" "-a" "944c074a118eccc6453867ab9d16e854caa99b1daccf9eba564dfe284db62628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "944c074a118eccc6453867ab9d16e854caa99b1daccf9eba564dfe284db62628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944c074a118eccc6453867ab9d16e854caa99b1daccf9eba564dfe284db62628", kill_on_drop: false }`
[INFO] [stdout] 944c074a118eccc6453867ab9d16e854caa99b1daccf9eba564dfe284db62628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 455544603d556dc1dd8cc19ce150480c61f9378e3173cb80dfdaf8fabf8fc517
[INFO] running `Command { std: "docker" "start" "-a" "455544603d556dc1dd8cc19ce150480c61f9378e3173cb80dfdaf8fabf8fc517", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking rustix v0.37.23
[INFO] [stderr]     Checking num-traits v0.2.16
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling async-process v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.183/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.1/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.13.0/src/future.rs:469:27
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                           ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err::<F, _>(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                                  ++++++++
[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 `futures-lite` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "455544603d556dc1dd8cc19ce150480c61f9378e3173cb80dfdaf8fabf8fc517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455544603d556dc1dd8cc19ce150480c61f9378e3173cb80dfdaf8fabf8fc517", kill_on_drop: false }`
[INFO] [stdout] 455544603d556dc1dd8cc19ce150480c61f9378e3173cb80dfdaf8fabf8fc517