[INFO] fetching crate perf_monitor 0.2.0...
[INFO] testing perf_monitor-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate perf_monitor 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate perf_monitor 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perf_monitor 0.2.0
[INFO] finished tweaking crates.io crate perf_monitor 0.2.0
[INFO] tweaked toml for crates.io crate perf_monitor 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate perf_monitor 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38600a5053b5a013da6d04efaddbc2df2b165936ec1cc6462e43ebda24e2e15a
[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" "38600a5053b5a013da6d04efaddbc2df2b165936ec1cc6462e43ebda24e2e15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38600a5053b5a013da6d04efaddbc2df2b165936ec1cc6462e43ebda24e2e15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38600a5053b5a013da6d04efaddbc2df2b165936ec1cc6462e43ebda24e2e15a", kill_on_drop: false }`
[INFO] [stdout] 38600a5053b5a013da6d04efaddbc2df2b165936ec1cc6462e43ebda24e2e15a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d66a798aa8361f7e13e0200eff4c1b5a749efa5dbaa5c4b52f28873e82f25156
[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" "d66a798aa8361f7e13e0200eff4c1b5a749efa5dbaa5c4b52f28873e82f25156", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling lpfs v0.2.0
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling perf_monitor v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fd_count_pid`
[INFO] [stdout]  --> src/fd/android_linux.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn fd_count_pid(pid: u32) -> Result<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 23.94s
[INFO] running `Command { std: "docker" "inspect" "d66a798aa8361f7e13e0200eff4c1b5a749efa5dbaa5c4b52f28873e82f25156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66a798aa8361f7e13e0200eff4c1b5a749efa5dbaa5c4b52f28873e82f25156", kill_on_drop: false }`
[INFO] [stdout] d66a798aa8361f7e13e0200eff4c1b5a749efa5dbaa5c4b52f28873e82f25156
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--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] 62d3803fba9bed185ec946a6d2b08e6b9963b011645bd47ec82228f9a61d22d7
[INFO] running `Command { std: "docker" "start" "-a" "62d3803fba9bed185ec946a6d2b08e6b9963b011645bd47ec82228f9a61d22d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling perf_monitor v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fd_count_pid`
[INFO] [stdout]  --> src/fd/android_linux.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn fd_count_pid(pid: u32) -> Result<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `perf_monitor::mem::get_process_memory_info`
[INFO] [stdout]  --> examples/activity_monitor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use perf_monitor::mem::get_process_memory_info;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `get_process_memory_info` in `mem`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perf_monitor`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "62d3803fba9bed185ec946a6d2b08e6b9963b011645bd47ec82228f9a61d22d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d3803fba9bed185ec946a6d2b08e6b9963b011645bd47ec82228f9a61d22d7", kill_on_drop: false }`
[INFO] [stdout] 62d3803fba9bed185ec946a6d2b08e6b9963b011645bd47ec82228f9a61d22d7
