[INFO] fetching crate pravega-client-shared 0.3.6...
[INFO] checking pravega-client-shared-0.3.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pravega-client-shared 0.3.6 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate pravega-client-shared 0.3.6 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 pravega-client-shared 0.3.6
[INFO] finished tweaking crates.io crate pravega-client-shared 0.3.6
[INFO] tweaked toml for crates.io crate pravega-client-shared 0.3.6 written to /workspace/builds/worker-3-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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 109 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding bitmaps v2.1.0 (latest: v3.2.1)
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.0)
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding derive-new v0.5.9 (latest: v0.6.0)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding ordered-float v2.10.1 (latest: v4.2.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding ring v0.16.20 (latest: v0.17.8)
[INFO] [stderr]       Adding rustls v0.19.1 (latest: v0.23.4)
[INFO] [stderr]       Adding sct v0.6.1 (latest: v0.7.1)
[INFO] [stderr]       Adding sized-chunks v0.6.5 (latest: v0.7.0)
[INFO] [stderr]       Adding snafu v0.6.10 (latest: v0.8.2)
[INFO] [stderr]       Adding snafu-derive v0.6.10 (latest: v0.8.2)
[INFO] [stderr]       Adding spin v0.5.2 (latest: v0.9.8)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding tokio-rustls v0.22.0 (latest: v0.26.0)
[INFO] [stderr]       Adding untrusted v0.7.1 (latest: v0.9.0)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding webpki v0.21.4 (latest: v0.22.4)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 murmurhash3 v0.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a1e558007a537454bf919ce3629f2f4bf7da4d5829c6d6bb71e63a065514ce26
[INFO] running `Command { std: "docker" "start" "-a" "a1e558007a537454bf919ce3629f2f4bf7da4d5829c6d6bb71e63a065514ce26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1e558007a537454bf919ce3629f2f4bf7da4d5829c6d6bb71e63a065514ce26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e558007a537454bf919ce3629f2f4bf7da4d5829c6d6bb71e63a065514ce26", kill_on_drop: false }`
[INFO] [stdout] a1e558007a537454bf919ce3629f2f4bf7da4d5829c6d6bb71e63a065514ce26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 942ce2e13edcbb7f7b2890ed742759e9ef5606481544ca851bd1e1deabbd6926
[INFO] running `Command { std: "docker" "start" "-a" "942ce2e13edcbb7f7b2890ed742759e9ef5606481544ca851bd1e1deabbd6926", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking murmurhash3 v0.0.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking pravega-client-shared v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:810:9
[INFO] [stdout]     |
[INFO] [stdout] 809 |     use super::*;
[INFO] [stdout]     |         -------- the item `From` is already imported here
[INFO] [stdout] 810 |     use std::convert::From;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `Command { std: "docker" "inspect" "942ce2e13edcbb7f7b2890ed742759e9ef5606481544ca851bd1e1deabbd6926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942ce2e13edcbb7f7b2890ed742759e9ef5606481544ca851bd1e1deabbd6926", kill_on_drop: false }`
[INFO] [stdout] 942ce2e13edcbb7f7b2890ed742759e9ef5606481544ca851bd1e1deabbd6926
[INFO] checking pravega-client-shared-0.3.6 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate pravega-client-shared 0.3.6 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate pravega-client-shared 0.3.6 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 pravega-client-shared 0.3.6
[INFO] finished tweaking crates.io crate pravega-client-shared 0.3.6
[INFO] tweaked toml for crates.io crate pravega-client-shared 0.3.6 written to /workspace/builds/worker-3-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] [stderr]     Updating crates.io index
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b513b588ddf660c69df55112d581327416402d7c24d0d04ed94ec0e545d80db7
[INFO] running `Command { std: "docker" "start" "-a" "b513b588ddf660c69df55112d581327416402d7c24d0d04ed94ec0e545d80db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b513b588ddf660c69df55112d581327416402d7c24d0d04ed94ec0e545d80db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b513b588ddf660c69df55112d581327416402d7c24d0d04ed94ec0e545d80db7", kill_on_drop: false }`
[INFO] [stdout] b513b588ddf660c69df55112d581327416402d7c24d0d04ed94ec0e545d80db7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9402540af2756eff373cd7c7f189b6e586b0075266abed56e3a6e5ef5a96d0e0
[INFO] running `Command { std: "docker" "start" "-a" "9402540af2756eff373cd7c7f189b6e586b0075266abed56e3a6e5ef5a96d0e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking mio v0.8.11
[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] [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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9402540af2756eff373cd7c7f189b6e586b0075266abed56e3a6e5ef5a96d0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9402540af2756eff373cd7c7f189b6e586b0075266abed56e3a6e5ef5a96d0e0", kill_on_drop: false }`
[INFO] [stdout] 9402540af2756eff373cd7c7f189b6e586b0075266abed56e3a6e5ef5a96d0e0