[INFO] fetching crate perf_monitor 0.2.0...
[INFO] testing perf_monitor-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate perf_monitor 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate perf_monitor 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-0/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d04ea7e44a0355bdd911f6a1351315f854feb3ab6d63842575f9c3d6a983ea90
[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" "d04ea7e44a0355bdd911f6a1351315f854feb3ab6d63842575f9c3d6a983ea90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d04ea7e44a0355bdd911f6a1351315f854feb3ab6d63842575f9c3d6a983ea90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04ea7e44a0355bdd911f6a1351315f854feb3ab6d63842575f9c3d6a983ea90", kill_on_drop: false }`
[INFO] [stdout] d04ea7e44a0355bdd911f6a1351315f854feb3ab6d63842575f9c3d6a983ea90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c0f13b3adacf7a408b18cb2987f88db9e55513d2f753e3b60d35b3d2dda9488
[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" "5c0f13b3adacf7a408b18cb2987f88db9e55513d2f753e3b60d35b3d2dda9488", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling futures v0.1.30
[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 parking_lot_core v0.7.2
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[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 32.13s
[INFO] running `Command { std: "docker" "inspect" "5c0f13b3adacf7a408b18cb2987f88db9e55513d2f753e3b60d35b3d2dda9488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c0f13b3adacf7a408b18cb2987f88db9e55513d2f753e3b60d35b3d2dda9488", kill_on_drop: false }`
[INFO] [stdout] 5c0f13b3adacf7a408b18cb2987f88db9e55513d2f753e3b60d35b3d2dda9488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] fec239e94b94de96cad7c289e06c8d214b4b58ecf0b2a2d5b5d1ffbd1e490e4c
[INFO] running `Command { std: "docker" "start" "-a" "fec239e94b94de96cad7c289e06c8d214b4b58ecf0b2a2d5b5d1ffbd1e490e4c", 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[E0554]: `#![feature]` may not be used on the beta 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] [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] [stderr] error: could not compile `perf_monitor` due to 2 previous errors
[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" "fec239e94b94de96cad7c289e06c8d214b4b58ecf0b2a2d5b5d1ffbd1e490e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec239e94b94de96cad7c289e06c8d214b4b58ecf0b2a2d5b5d1ffbd1e490e4c", kill_on_drop: false }`
[INFO] [stdout] fec239e94b94de96cad7c289e06c8d214b4b58ecf0b2a2d5b5d1ffbd1e490e4c