[INFO] fetching crate rpf 0.1.6...
[INFO] checking rpf-0.1.6 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate rpf 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rpf 0.1.6 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rpf 0.1.6
[INFO] finished tweaking crates.io crate rpf 0.1.6
[INFO] tweaked toml for crates.io crate rpf 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26fb34f409bae7ff8fce18b6ff1624585d1adc1cc5f9ba18ee4e05f30e50686c
[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" "26fb34f409bae7ff8fce18b6ff1624585d1adc1cc5f9ba18ee4e05f30e50686c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26fb34f409bae7ff8fce18b6ff1624585d1adc1cc5f9ba18ee4e05f30e50686c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26fb34f409bae7ff8fce18b6ff1624585d1adc1cc5f9ba18ee4e05f30e50686c", kill_on_drop: false }`
[INFO] [stdout] 26fb34f409bae7ff8fce18b6ff1624585d1adc1cc5f9ba18ee4e05f30e50686c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad1452ef82179ac434df5f193c5e1a685b65d3e467f7c9d2450fa17c38d5053b
[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" "ad1452ef82179ac434df5f193c5e1a685b65d3e467f7c9d2450fa17c38d5053b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ansi_term v0.6.3
[INFO] [stderr]     Checking rpf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ANSIString`
[INFO] [stdout]  --> src/utils/styled.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::ansi_term::{Colour,ANSIString};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Red`
[INFO] [stdout]  --> src/utils/styled.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use self::ansi_term::Colour::{Red};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ANSIString`
[INFO] [stdout]  --> src/utils/styled.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::ansi_term::{Colour,ANSIString};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Red`
[INFO] [stdout]  --> src/utils/styled.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use self::ansi_term::Colour::{Red};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ad1452ef82179ac434df5f193c5e1a685b65d3e467f7c9d2450fa17c38d5053b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1452ef82179ac434df5f193c5e1a685b65d3e467f7c9d2450fa17c38d5053b", kill_on_drop: false }`
[INFO] [stdout] ad1452ef82179ac434df5f193c5e1a685b65d3e467f7c9d2450fa17c38d5053b