[INFO] fetching crate bcc 0.0.31...
[INFO] checking bcc-0.0.31 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate bcc 0.0.31 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate bcc 0.0.31 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bcc 0.0.31
[INFO] finished tweaking crates.io crate bcc 0.0.31
[INFO] tweaked toml for crates.io crate bcc 0.0.31 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate bcc 0.0.31 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bcc-sys v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ea64c4ff94e9894cb7f56728399ab5510c57724322ba2266f79551eebc42194
[INFO] running `Command { std: "docker" "start" "-a" "3ea64c4ff94e9894cb7f56728399ab5510c57724322ba2266f79551eebc42194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ea64c4ff94e9894cb7f56728399ab5510c57724322ba2266f79551eebc42194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea64c4ff94e9894cb7f56728399ab5510c57724322ba2266f79551eebc42194", kill_on_drop: false }`
[INFO] [stdout] 3ea64c4ff94e9894cb7f56728399ab5510c57724322ba2266f79551eebc42194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b261a3333eae06b403aa1a9dc68a2691d615520f82509391a524db2a119c3381
[INFO] running `Command { std: "docker" "start" "-a" "b261a3333eae06b403aa1a9dc68a2691d615520f82509391a524db2a119c3381", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bcc-sys v0.18.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking bcc v0.0.31 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/kprobe/v0_9_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/perf_event/v0_4_0.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/raw_tracepoint/v0_6_0.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p`
[INFO] [stdout]   --> src/core/raw_tracepoint/v0_6_0.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     p: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/tracepoint/v0_6_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p`
[INFO] [stdout]   --> src/core/tracepoint/v0_6_0.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     p: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/uprobe/v0_17_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cflags`
[INFO] [stdout]   --> src/core/mod.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     cflags: Vec<CString>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/kprobe/v0_9_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/perf_event/v0_4_0.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/raw_tracepoint/v0_6_0.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p`
[INFO] [stdout]   --> src/core/raw_tracepoint/v0_6_0.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     p: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/tracepoint/v0_6_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p`
[INFO] [stdout]   --> src/core/tracepoint/v0_6_0.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     p: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `code_fd`
[INFO] [stdout]   --> src/core/uprobe/v0_17_0.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     code_fd: File,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cflags`
[INFO] [stdout]   --> src/core/mod.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     cflags: Vec<CString>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SoftwareEvent`
[INFO] [stdout]  --> examples/memory.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bcc::perf_event::{Event, SoftwareEvent};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PerfEvent`
[INFO] [stdout]  --> examples/memory.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bcc::{PerfEvent, PerfEventArray, BPF};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_SAMPLE_FREQ`
[INFO] [stdout]   --> examples/memory.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DEFAULT_SAMPLE_FREQ: u64 = 99; // Hertz
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.16s
[INFO] running `Command { std: "docker" "inspect" "b261a3333eae06b403aa1a9dc68a2691d615520f82509391a524db2a119c3381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b261a3333eae06b403aa1a9dc68a2691d615520f82509391a524db2a119c3381", kill_on_drop: false }`
[INFO] [stdout] b261a3333eae06b403aa1a9dc68a2691d615520f82509391a524db2a119c3381