[INFO] cloning repository https://github.com/jvns/ruby-mem-watcher-demo
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6470107282b5734c12196787c8f915c35691299
[INFO] testing jvns/ruby-mem-watcher-demo against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jvns/ruby-mem-watcher-demo on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-69/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded which v1.0.3
[INFO] [stderr]   Downloaded cexpr v0.2.2
[INFO] [stderr]   Downloaded bindgen v0.31.3
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded read-process-memory v0.1.2
[INFO] [stderr]   Downloaded mach v0.0.5
[INFO] [stderr]   Downloaded bcc v0.0.1
[INFO] [stderr]   Downloaded clang-sys v0.21.1
[INFO] [stderr]   Downloaded bcc-sys v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6fc09a5d8ad6fe447356461a20ab9230febd0f349bf063d041fcdc68fb3a465
[INFO] running `Command { std: "docker" "start" "-a" "a6fc09a5d8ad6fe447356461a20ab9230febd0f349bf063d041fcdc68fb3a465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6fc09a5d8ad6fe447356461a20ab9230febd0f349bf063d041fcdc68fb3a465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6fc09a5d8ad6fe447356461a20ab9230febd0f349bf063d041fcdc68fb3a465", kill_on_drop: false }`
[INFO] [stdout] a6fc09a5d8ad6fe447356461a20ab9230febd0f349bf063d041fcdc68fb3a465
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 730074e7e44110e4a45c57b03e238f0867d274ba0ad23b8013e8c29df8342aad
[INFO] running `Command { std: "docker" "start" "-a" "730074e7e44110e4a45c57b03e238f0867d274ba0ad23b8013e8c29df8342aad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling glob v0.2.11
[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-xid v0.0.4
[INFO] [stderr]    Compiling bindgen v0.31.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling which v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling read-process-memory v0.1.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling elf v0.0.10
[INFO] [stderr]    Compiling clang-sys v0.21.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling cexpr v0.2.2
[INFO] [stderr]    Compiling regex v0.2.5
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling bcc-sys v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling bcc v0.0.1
[INFO] [stderr]    Compiling ruby-fork-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/bin/count-ruby-allocs.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let name = name.trim_right_matches("\0");
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/count-ruby-allocs.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 let mut out = f(ptr);
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.count_ruby_allocs.742157ae-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256.2y3652kdy6qt4bos.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-27bdc392d2215ae7/out/.libs" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libruby_fork_test-a08b746d6f1710be.rlib" "/opt/rustwide/target/debug/deps/libbcc-b88df47a2bdccd06.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-39b85ac3b36ac1be.rlib" "/opt/rustwide/target/debug/deps/libbcc_sys-739180b0d35db380.rlib" "/opt/rustwide/target/debug/deps/libfailure-2c1064ef0eadd457.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-890d0f9efb9fd8c2.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-291d2ad4430f188f.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-b3e152bd7a3ad5ef.rlib" "/opt/rustwide/target/debug/deps/libelf-48baddb50cd2698b.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-5bc5ae7023393dae.rlib" "/opt/rustwide/target/debug/deps/libread_process_memory-cc09a27d2f4688ec.rlib" "/opt/rustwide/target/debug/deps/liblibc-30f6f2d677672f5c.rlib" "/opt/rustwide/target/debug/deps/liblog-2e34ed94a8001e67.rlib" "/opt/rustwide/target/debug/deps/liblog-3ab8cf2542edaf7b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-dd5c2b17cf4396e4.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-46a006cddfd334f0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b9870310e470b38.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-260022ba8f1ab4ee.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-71377435a799394f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-658ee5924fde57cd.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-9e8627da6bd1b94a.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-19fdaac49f59be84.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-cb00e2691ea45905.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-50f6726defae5ae1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2afc16311deea26e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bb5cb0fe086ee8cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-896053247b5dfd0b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-735e1f2ac3cf23be.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-9dfb6622644c732c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a9a3b2ad67977f47.rlib" "-Wl,-Bdynamic" "-lbcc" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/count_ruby_allocs-5b936bf3c8dc2256" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lbcc
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruby-fork-test` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "730074e7e44110e4a45c57b03e238f0867d274ba0ad23b8013e8c29df8342aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730074e7e44110e4a45c57b03e238f0867d274ba0ad23b8013e8c29df8342aad", kill_on_drop: false }`
[INFO] [stdout] 730074e7e44110e4a45c57b03e238f0867d274ba0ad23b8013e8c29df8342aad
