[INFO] fetching crate rsbalancer 0.3.0...
[INFO] checking rsbalancer-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rsbalancer 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rsbalancer 0.3.0 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 rsbalancer 0.3.0
[INFO] finished tweaking crates.io crate rsbalancer 0.3.0
[INFO] tweaked toml for crates.io crate rsbalancer 0.3.0 written to /workspace/builds/worker-0-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 9 packages
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5661b51e78745cd6e80aa019a6905e7ed695c61969f9a0eb45c5e479ceadd603
[INFO] running `Command { std: "docker" "start" "-a" "5661b51e78745cd6e80aa019a6905e7ed695c61969f9a0eb45c5e479ceadd603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5661b51e78745cd6e80aa019a6905e7ed695c61969f9a0eb45c5e479ceadd603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5661b51e78745cd6e80aa019a6905e7ed695c61969f9a0eb45c5e479ceadd603", kill_on_drop: false }`
[INFO] [stdout] 5661b51e78745cd6e80aa019a6905e7ed695c61969f9a0eb45c5e479ceadd603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0de68d376fa8e08856ac48b15f43c1b83b570fc06a4b46d802e761878f5ec610
[INFO] running `Command { std: "docker" "start" "-a" "0de68d376fa8e08856ac48b15f43c1b83b570fc06a4b46d802e761878f5ec610", kill_on_drop: false }`
[INFO] [stderr]     Checking rsbalancer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "0de68d376fa8e08856ac48b15f43c1b83b570fc06a4b46d802e761878f5ec610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de68d376fa8e08856ac48b15f43c1b83b570fc06a4b46d802e761878f5ec610", kill_on_drop: false }`
[INFO] [stdout] 0de68d376fa8e08856ac48b15f43c1b83b570fc06a4b46d802e761878f5ec610
[INFO] checking rsbalancer-0.3.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rsbalancer 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rsbalancer 0.3.0 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 rsbalancer 0.3.0
[INFO] finished tweaking crates.io crate rsbalancer 0.3.0
[INFO] tweaked toml for crates.io crate rsbalancer 0.3.0 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3e9fdb2755c6a28048400834f4cf41f68acef2660faed6901cce70eda668c785
[INFO] running `Command { std: "docker" "start" "-a" "3e9fdb2755c6a28048400834f4cf41f68acef2660faed6901cce70eda668c785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e9fdb2755c6a28048400834f4cf41f68acef2660faed6901cce70eda668c785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9fdb2755c6a28048400834f4cf41f68acef2660faed6901cce70eda668c785", kill_on_drop: false }`
[INFO] [stdout] 3e9fdb2755c6a28048400834f4cf41f68acef2660faed6901cce70eda668c785
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ba5994a100aa82192a2d702fa4a73736bc9ea518ad21c8d24baa5ca4344d675d
[INFO] running `Command { std: "docker" "start" "-a" "ba5994a100aa82192a2d702fa4a73736bc9ea518ad21c8d24baa5ca4344d675d", kill_on_drop: false }`
[INFO] [stderr]     Checking rsbalancer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/consistent_hashing.rs:99:9
[INFO] [stdout]     |
[INFO] [stdout] 99  | /         match self.get_node(id) {
[INFO] [stdout] 100 | |             Some(node) => {
[INFO] [stdout] 101 | |                 let count = self.replicas_of_node(&node);
[INFO] [stdout] 102 | |                 for i in 0..count {
[INFO] [stdout] ...   |
[INFO] [stdout] 115 | |             }
[INFO] [stdout] 116 | |         };
[INFO] [stdout]     | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/consistent_hashing.rs:99:9
[INFO] [stdout]     |
[INFO] [stdout] 99  | /         match self.get_node(id) {
[INFO] [stdout] 100 | |             Some(node) => {
[INFO] [stdout] 101 | |                 let count = self.replicas_of_node(&node);
[INFO] [stdout] 102 | |                 for i in 0..count {
[INFO] [stdout] ...   |
[INFO] [stdout] 115 | |             }
[INFO] [stdout] 116 | |         };
[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 `rsbalancer` (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 `rsbalancer` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ba5994a100aa82192a2d702fa4a73736bc9ea518ad21c8d24baa5ca4344d675d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba5994a100aa82192a2d702fa4a73736bc9ea518ad21c8d24baa5ca4344d675d", kill_on_drop: false }`
[INFO] [stdout] ba5994a100aa82192a2d702fa4a73736bc9ea518ad21c8d24baa5ca4344d675d