[INFO] fetching crate Cupcake 0.2.0...
[INFO] checking Cupcake-0.2.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate Cupcake 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate Cupcake 0.2.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Cupcake 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate Cupcake 0.2.0
[INFO] tweaked toml for crates.io crate Cupcake 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate Cupcake 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded modinverse v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f559d1475432c11177b4aa3500dc7d01056eb5595dd8862c4e4cde5cc16e912
[INFO] running `Command { std: "docker" "start" "-a" "6f559d1475432c11177b4aa3500dc7d01056eb5595dd8862c4e4cde5cc16e912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f559d1475432c11177b4aa3500dc7d01056eb5595dd8862c4e4cde5cc16e912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f559d1475432c11177b4aa3500dc7d01056eb5595dd8862c4e4cde5cc16e912", kill_on_drop: false }`
[INFO] [stdout] 6f559d1475432c11177b4aa3500dc7d01056eb5595dd8862c4e4cde5cc16e912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a0ee4fce338c5b005359a1d426bb343dbf058ff7f97f4ac830365893d7d5b4a
[INFO] running `Command { std: "docker" "start" "-a" "7a0ee4fce338c5b005359a1d426bb343dbf058ff7f97f4ac830365893d7d5b4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking modinverse v0.1.1
[INFO] [stderr]     Checking Cupcake v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> benches/example.rs:185:20
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let _ = fv.decrypt(&ct, &sk);
[INFO] [stdout]     |             -      ^^^^^^^ cannot infer type for type parameter `PT` declared on the trait `SKEncryption`
[INFO] [stdout]     |             |
[INFO] [stdout]     |             consider giving this pattern a type
[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 `Cupcake`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7a0ee4fce338c5b005359a1d426bb343dbf058ff7f97f4ac830365893d7d5b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0ee4fce338c5b005359a1d426bb343dbf058ff7f97f4ac830365893d7d5b4a", kill_on_drop: false }`
[INFO] [stdout] 7a0ee4fce338c5b005359a1d426bb343dbf058ff7f97f4ac830365893d7d5b4a