[INFO] fetching crate bft-core 0.1.0...
[INFO] checking bft-core-0.1.0 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate bft-core 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate bft-core 0.1.0 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bft-core 0.1.0
[INFO] finished tweaking crates.io crate bft-core 0.1.0
[INFO] tweaked toml for crates.io crate bft-core 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1397d9354f2721ad7c48e184f1c1b09bddc3ce10ad3fc311c31bee3fb48897be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1397d9354f2721ad7c48e184f1c1b09bddc3ce10ad3fc311c31bee3fb48897be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1397d9354f2721ad7c48e184f1c1b09bddc3ce10ad3fc311c31bee3fb48897be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1397d9354f2721ad7c48e184f1c1b09bddc3ce10ad3fc311c31bee3fb48897be", kill_on_drop: false }`
[INFO] [stdout] 1397d9354f2721ad7c48e184f1c1b09bddc3ce10ad3fc311c31bee3fb48897be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 230171c3ef5da98b6817a1a9e123e65c464b88a328912c8900b80fe72559d4fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "230171c3ef5da98b6817a1a9e123e65c464b88a328912c8900b80fe72559d4fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking min-max-heap v1.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bft-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated type `error` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |     type error: ::std::fmt::Debug;
[INFO] [stdout]    |          ^^^^^ help: convert the identifier to upper camel case: `Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated type `error` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |     type error: ::std::fmt::Debug;
[INFO] [stdout]    |          ^^^^^ help: convert the identifier to upper camel case: `Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.88s
[INFO] running `Command { std: "docker" "inspect" "230171c3ef5da98b6817a1a9e123e65c464b88a328912c8900b80fe72559d4fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "230171c3ef5da98b6817a1a9e123e65c464b88a328912c8900b80fe72559d4fc", kill_on_drop: false }`
[INFO] [stdout] 230171c3ef5da98b6817a1a9e123e65c464b88a328912c8900b80fe72559d4fc