[INFO] fetching crate indexer 0.2.8...
[INFO] checking indexer-0.2.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate indexer 0.2.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate indexer 0.2.8 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 indexer 0.2.8
[INFO] finished tweaking crates.io crate indexer 0.2.8
[INFO] tweaked toml for crates.io crate indexer 0.2.8 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding ordered-float v1.1.1 (latest: v4.2.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded json_dotpath v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 85e3855540212bb0852d041bc6444c636e3b5d93f5e6e036ef6bb8da8a78df56
[INFO] running `Command { std: "docker" "start" "-a" "85e3855540212bb0852d041bc6444c636e3b5d93f5e6e036ef6bb8da8a78df56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85e3855540212bb0852d041bc6444c636e3b5d93f5e6e036ef6bb8da8a78df56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e3855540212bb0852d041bc6444c636e3b5d93f5e6e036ef6bb8da8a78df56", kill_on_drop: false }`
[INFO] [stdout] 85e3855540212bb0852d041bc6444c636e3b5d93f5e6e036ef6bb8da8a78df56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 48259833be89e6761fe19a59d548da9659bfd5cad3134b597efeedeb8d464b3e
[INFO] running `Command { std: "docker" "start" "-a" "48259833be89e6761fe19a59d548da9659bfd5cad3134b597efeedeb8d464b3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking json_dotpath v1.1.0
[INFO] [stderr]     Checking indexer v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `Arc` is already imported here
[INFO] [stdout] 3 | use std::sync::{Arc, RwLock};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RwLock` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `RwLock` is already imported here
[INFO] [stdout] 3 | use std::sync::{Arc, RwLock};
[INFO] [stdout]   |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Op` is imported redundantly
[INFO] [stdout]    --> src/tests.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 2   | use crate::*;
[INFO] [stdout]     |     -------- the item `Op` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 107 | use crate::Op;
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "48259833be89e6761fe19a59d548da9659bfd5cad3134b597efeedeb8d464b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48259833be89e6761fe19a59d548da9659bfd5cad3134b597efeedeb8d464b3e", kill_on_drop: false }`
[INFO] [stdout] 48259833be89e6761fe19a59d548da9659bfd5cad3134b597efeedeb8d464b3e
[INFO] checking indexer-0.2.8 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate indexer 0.2.8 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate indexer 0.2.8 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 indexer 0.2.8
[INFO] finished tweaking crates.io crate indexer 0.2.8
[INFO] tweaked toml for crates.io crate indexer 0.2.8 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fbda054a07aaf89d8f269abf4f8153797982150e499e714ec30d5c89fc2e09f3
[INFO] running `Command { std: "docker" "start" "-a" "fbda054a07aaf89d8f269abf4f8153797982150e499e714ec30d5c89fc2e09f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbda054a07aaf89d8f269abf4f8153797982150e499e714ec30d5c89fc2e09f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbda054a07aaf89d8f269abf4f8153797982150e499e714ec30d5c89fc2e09f3", kill_on_drop: false }`
[INFO] [stdout] fbda054a07aaf89d8f269abf4f8153797982150e499e714ec30d5c89fc2e09f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 61aa67a00eca14a386dddbd26ebbb7c9f9250681bd95aa8def4cde5427fb7fb1
[INFO] running `Command { std: "docker" "start" "-a" "61aa67a00eca14a386dddbd26ebbb7c9f9250681bd95aa8def4cde5427fb7fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking crossbeam-utils v0.8.19
[INFO] [stderr]     Checking num-traits v0.2.18
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.19/src/sync/parker.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 | /                         match self.state.swap(EMPTY, SeqCst) {
[INFO] [stdout] 371 | |                             NOTIFIED | PARKED => return,
[INFO] [stdout] 372 | |                             n => panic!("inconsistent park_timeout state: {}", n),
[INFO] [stdout] 373 | |                         };
[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 `crossbeam-utils` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "61aa67a00eca14a386dddbd26ebbb7c9f9250681bd95aa8def4cde5427fb7fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61aa67a00eca14a386dddbd26ebbb7c9f9250681bd95aa8def4cde5427fb7fb1", kill_on_drop: false }`
[INFO] [stdout] 61aa67a00eca14a386dddbd26ebbb7c9f9250681bd95aa8def4cde5427fb7fb1