[INFO] fetching crate integer-encoding 1.1.5...
[INFO] checking integer-encoding-1.1.5 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate integer-encoding 1.1.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate integer-encoding 1.1.5 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate integer-encoding 1.1.5
[INFO] finished tweaking crates.io crate integer-encoding 1.1.5
[INFO] tweaked toml for crates.io crate integer-encoding 1.1.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ef1fc2665d6a68b717585bc514e0eb0514e31113911db2206055c85d7d666b0
[INFO] running `Command { std: "docker" "start" "-a" "1ef1fc2665d6a68b717585bc514e0eb0514e31113911db2206055c85d7d666b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ef1fc2665d6a68b717585bc514e0eb0514e31113911db2206055c85d7d666b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef1fc2665d6a68b717585bc514e0eb0514e31113911db2206055c85d7d666b0", kill_on_drop: false }`
[INFO] [stdout] 1ef1fc2665d6a68b717585bc514e0eb0514e31113911db2206055c85d7d666b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 514e60e98146636cc111db643431883bb1dedc9979e62385bb9126ecbdb6858c
[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" "514e60e98146636cc111db643431883bb1dedc9979e62385bb9126ecbdb6858c", kill_on_drop: false }`
[INFO] [stderr]     Checking integer-encoding v1.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/reader.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         (self.i > 0 && (self.buf[self.i - 1] & MSB == 0))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/reader.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         (self.i > 0 && (self.buf[self.i - 1] & MSB == 0))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.59s
[INFO] running `Command { std: "docker" "inspect" "514e60e98146636cc111db643431883bb1dedc9979e62385bb9126ecbdb6858c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514e60e98146636cc111db643431883bb1dedc9979e62385bb9126ecbdb6858c", kill_on_drop: false }`
[INFO] [stdout] 514e60e98146636cc111db643431883bb1dedc9979e62385bb9126ecbdb6858c