[INFO] cloning repository https://github.com/brhoades/adaptive-backoff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brhoades/adaptive-backoff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrhoades%2Fadaptive-backoff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrhoades%2Fadaptive-backoff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daf3a876f855aa7fd8f896928e96d1e85bc208ff
[INFO] checking brhoades/adaptive-backoff against try#e61be1c89a2b3fd02452eef3c6186592711e4772 for pr-98456
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrhoades%2Fadaptive-backoff" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brhoades/adaptive-backoff on toolchain e61be1c89a2b3fd02452eef3c6186592711e4772
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e61be1c89a2b3fd02452eef3c6186592711e4772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brhoades/adaptive-backoff
[INFO] finished tweaking git repo https://github.com/brhoades/adaptive-backoff
[INFO] tweaked toml for git repo https://github.com/brhoades/adaptive-backoff written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/brhoades/adaptive-backoff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e61be1c89a2b3fd02452eef3c6186592711e4772" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e61be1c89a2b3fd02452eef3c6186592711e4772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9543cbd3d940318f6e43d00395d04d67fd4f241c3d2f1c1af6432bf56ae43dd
[INFO] running `Command { std: "docker" "start" "-a" "f9543cbd3d940318f6e43d00395d04d67fd4f241c3d2f1c1af6432bf56ae43dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9543cbd3d940318f6e43d00395d04d67fd4f241c3d2f1c1af6432bf56ae43dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9543cbd3d940318f6e43d00395d04d67fd4f241c3d2f1c1af6432bf56ae43dd", kill_on_drop: false }`
[INFO] [stdout] f9543cbd3d940318f6e43d00395d04d67fd4f241c3d2f1c1af6432bf56ae43dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e61be1c89a2b3fd02452eef3c6186592711e4772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 107b370e6d18fc740d640bd89aebcca4e6de53e3c4c87aceded587c902bdd3bd
[INFO] running `Command { std: "docker" "start" "-a" "107b370e6d18fc740d640bd89aebcca4e6de53e3c4c87aceded587c902bdd3bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking adaptive_backoff v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib/adaptive.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |             ..AdaptiveBuilder::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^ cannot infer type for type parameter `BB` declared on the struct `AdaptiveBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib/adaptive.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |             ..AdaptiveBuilder::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^ cannot infer type for type parameter `BB` declared on the struct `AdaptiveBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `adaptive_backoff` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 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 `adaptive_backoff` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "107b370e6d18fc740d640bd89aebcca4e6de53e3c4c87aceded587c902bdd3bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107b370e6d18fc740d640bd89aebcca4e6de53e3c4c87aceded587c902bdd3bd", kill_on_drop: false }`
[INFO] [stdout] 107b370e6d18fc740d640bd89aebcca4e6de53e3c4c87aceded587c902bdd3bd