[INFO] cloning repository https://github.com/jvns/ruby-mem-watcher-demo [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jvns/ruby-mem-watcher-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d6470107282b5734c12196787c8f915c35691299 [INFO] testing jvns/ruby-mem-watcher-demo against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jvns/ruby-mem-watcher-demo on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jvns/ruby-mem-watcher-demo [INFO] finished tweaking git repo https://github.com/jvns/ruby-mem-watcher-demo [INFO] tweaked toml for git repo https://github.com/jvns/ruby-mem-watcher-demo written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jvns/ruby-mem-watcher-demo already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1ca72a3413dbadbb995de381b03de97b8e2a6622f6171d39f4d0da434c5e40fb [INFO] running `"docker" "start" "-a" "1ca72a3413dbadbb995de381b03de97b8e2a6622f6171d39f4d0da434c5e40fb"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling cfg-if v0.1.2 [INFO] [stderr] Compiling lazy_static v1.0.0 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Compiling regex-syntax v0.4.2 [INFO] [stderr] Compiling unicode-width v0.1.4 [INFO] [stderr] Compiling vec_map v0.8.0 [INFO] [stderr] Compiling strsim v0.6.0 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling bitflags v1.0.1 [INFO] [stderr] Compiling cc v1.0.4 [INFO] [stderr] Compiling bindgen v0.31.3 [INFO] [stderr] Compiling ansi_term v0.10.2 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling rustc-demangle v0.1.5 [INFO] [stderr] Compiling byteorder v0.5.3 [INFO] [stderr] Compiling byteorder v1.2.1 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling atty v0.2.6 [INFO] [stderr] Compiling which v1.0.3 [INFO] [stderr] Compiling clang-sys v0.21.1 [INFO] [stderr] Compiling log v0.4.1 [INFO] [stderr] Compiling textwrap v0.9.0 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Compiling elf v0.0.10 [INFO] [stderr] Compiling nom v3.2.1 [INFO] [stderr] Compiling thread_local v0.3.5 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling clap v2.29.2 [INFO] [stderr] Compiling read-process-memory v0.1.2 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Compiling regex v0.2.5 [INFO] [stderr] Compiling cexpr v0.2.2 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Compiling env_logger v0.4.3 [INFO] [stderr] Compiling backtrace v0.3.5 [INFO] [stderr] Compiling failure v0.1.1 [INFO] [stderr] Compiling bcc-sys v0.4.0 [INFO] [stderr] Compiling bcc v0.0.1 [INFO] [stderr] Compiling ruby-fork-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary braces around method argument [INFO] [stderr] --> src/proc_maps.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | maps.iter().any({ |map| map.contains_addr(addr) }) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'core::str::::trim_right_matches': superseded by `trim_end_matches` [INFO] [stderr] --> src/bin/count-ruby-allocs.rs:138:29 [INFO] [stderr] | [INFO] [stderr] 138 | let name = name.trim_right_matches("\0"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/count-ruby-allocs.rs:134:21 [INFO] [stderr] | [INFO] [stderr] 134 | let mut out = f(ptr); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] error: linking with `cc` failed: exit code: 1 [INFO] [stderr] | [INFO] [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.count_ruby_allocs.76rsutnu-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496" "/opt/rustwide/target/debug/deps/count_ruby_allocs-bd52c09fc8210496.22921vy76fd2hhg2.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-e9331af79deb2069/out/.libs" "-L" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libruby_fork_test-6e8c1ff6e75abc8d.rlib" "/opt/rustwide/target/debug/deps/libbcc-d08494b405203811.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-0a3ed1b317494507.rlib" "/opt/rustwide/target/debug/deps/libbcc_sys-a95e24e8c7bbe4a2.rlib" "/opt/rustwide/target/debug/deps/libfailure-1e39d0a89defb19e.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-8fc018e1ac302555.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-13a7244a0b4e29e4.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-7e307b3e0787c463.rlib" "/opt/rustwide/target/debug/deps/libelf-1af5daf2df3d0df1.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-77a63976e1bc11ad.rlib" "/opt/rustwide/target/debug/deps/libread_process_memory-2f3bbccbb9f53a35.rlib" "/opt/rustwide/target/debug/deps/liblibc-a43eee56c5d9f5ea.rlib" "/opt/rustwide/target/debug/deps/liblog-2b0c0041bed2a3c2.rlib" "/opt/rustwide/target/debug/deps/liblog-2ebd5a193c61b8b6.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-0402d25e24990f3e.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-205127404fcba336.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-a657948fb7763780.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-4af901391177f653.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-9bdd51edf637d1e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-df9a9630b2ea2e1e.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-fddbfe63d5cc9339.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-dc1fcc6e43806791.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e2f4bff19e00107e.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a152d13c1d7ed405.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d92b841792fc008d.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a64c249515c023f5.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57654524b3e40c00.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-72180f1527a726a2.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-990cc8f4a91a3ab4.rlib" "-Wl,-Bdynamic" "-lbcc" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lbcc [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 2 warnings emitted [INFO] [stderr] [INFO] [stderr] error: could not compile `ruby-fork-test`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "1ca72a3413dbadbb995de381b03de97b8e2a6622f6171d39f4d0da434c5e40fb"` [INFO] running `"docker" "rm" "-f" "1ca72a3413dbadbb995de381b03de97b8e2a6622f6171d39f4d0da434c5e40fb"` [INFO] [stdout] 1ca72a3413dbadbb995de381b03de97b8e2a6622f6171d39f4d0da434c5e40fb