[INFO] fetching crate libpapi_sys 0.1.6...
[INFO] checking libpapi_sys-0.1.6 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate libpapi_sys 0.1.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate libpapi_sys 0.1.6 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpapi_sys 0.1.6
[INFO] finished tweaking crates.io crate libpapi_sys 0.1.6
[INFO] tweaked toml for crates.io crate libpapi_sys 0.1.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 425ffd64b4e0b4238e055427753925d35155e68f9993e4922e48a3e0a59b591f
[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" "425ffd64b4e0b4238e055427753925d35155e68f9993e4922e48a3e0a59b591f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "425ffd64b4e0b4238e055427753925d35155e68f9993e4922e48a3e0a59b591f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425ffd64b4e0b4238e055427753925d35155e68f9993e4922e48a3e0a59b591f", kill_on_drop: false }`
[INFO] [stdout] 425ffd64b4e0b4238e055427753925d35155e68f9993e4922e48a3e0a59b591f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 8b3719abdf9fec9d3b38ca6097c5d7b1d14a342f32caf4fb279129eeb8fbe0ac
[INFO] running `Command { std: "docker" "start" "-a" "8b3719abdf9fec9d3b38ca6097c5d7b1d14a342f32caf4fb279129eeb8fbe0ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling libpapi_sys v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `sum` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let mut sum = 0;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_sum` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `Command { std: "docker" "inspect" "8b3719abdf9fec9d3b38ca6097c5d7b1d14a342f32caf4fb279129eeb8fbe0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3719abdf9fec9d3b38ca6097c5d7b1d14a342f32caf4fb279129eeb8fbe0ac", kill_on_drop: false }`
[INFO] [stdout] 8b3719abdf9fec9d3b38ca6097c5d7b1d14a342f32caf4fb279129eeb8fbe0ac