[INFO] cloning repository https://github.com/gaelroue/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gaelroue/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaelroue%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaelroue%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e981c5c556a8a7d0fd6b6b94d7734de2646c9ede
[INFO] testing gaelroue/learning-rust against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaelroue%2Flearning-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gaelroue/learning-rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gaelroue/learning-rust
[INFO] finished tweaking git repo https://github.com/gaelroue/learning-rust
[INFO] tweaked toml for git repo https://github.com/gaelroue/learning-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/gaelroue/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded curl v0.3.11
[INFO] [stderr]   Downloaded curl-sys v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb804e7f63773a810e0f3bccb3eab8e9058ae4c42972ac93c0030f403dcfb979
[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" "eb804e7f63773a810e0f3bccb3eab8e9058ae4c42972ac93c0030f403dcfb979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb804e7f63773a810e0f3bccb3eab8e9058ae4c42972ac93c0030f403dcfb979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb804e7f63773a810e0f3bccb3eab8e9058ae4c42972ac93c0030f403dcfb979", kill_on_drop: false }`
[INFO] [stdout] eb804e7f63773a810e0f3bccb3eab8e9058ae4c42972ac93c0030f403dcfb979
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78b099aee241984daddbbb447dc0eddb636a7b0e5bf60a4da51ce0cc08d0c1c0
[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" "78b099aee241984daddbbb447dc0eddb636a7b0e5bf60a4da51ce0cc08d0c1c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.2.5
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling curl v0.3.11
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/ini.rs:56:31
[INFO] [stdout]    |
[INFO] [stdout] 56 |              if line.unwrap().trim_left().starts_with('#') == true {
[INFO] [stdout]    |                               ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/ini.rs:74:35
[INFO] [stdout]    |
[INFO] [stdout] 74 |                  if line.unwrap().trim_left().starts_with('[') == true {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.learning.80fbp2ez-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0" "/opt/rustwide/target/debug/deps/learning-b9a12b171f6215c0.y0yvuh4o41sg8vi.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/curl-sys-aaf21356ddbd3411/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libregex-90d4f0cc749607a0.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-d1a635b7c3059b5b.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-733e611f959c7336.rlib" "/opt/rustwide/target/debug/deps/libthread_local-d04043b2b65dcb2e.rlib" "/opt/rustwide/target/debug/deps/libthread_id-726cb55593568514.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-e74f2c5f4631a63f.rlib" "/opt/rustwide/target/debug/deps/libmemchr-ef3101724c21d1d1.rlib" "/opt/rustwide/target/debug/deps/libcurl-f1df5cd8fd22024d.rlib" "/opt/rustwide/target/debug/deps/libopenssl_probe-65d1fa460031adce.rlib" "/opt/rustwide/target/debug/deps/libcurl_sys-e020fe23edcfab05.rlib" "/opt/rustwide/target/debug/deps/libopenssl_sys-cebb6854215e1c73.rlib" "/opt/rustwide/target/debug/deps/liblibz_sys-72ddb2f963211297.rlib" "/opt/rustwide/target/debug/deps/liblibc-77d6541a42757d2c.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lssl" "-lcrypto" "-lz" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libcurl_sys-e020fe23edcfab05.rlib(libcurl_la-version.o): in function `curl_version':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curl-sys-0.2.5/curl/lib/version.c:122: undefined reference to `psl_get_version'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libcurl_sys-e020fe23edcfab05.rlib(libcurl_la-cookie.o): in function `Curl_cookie_add':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curl-sys-0.2.5/curl/lib/cookie.c:801: undefined reference to `psl_builtin'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curl-sys-0.2.5/curl/lib/cookie.c:802: undefined reference to `psl_is_cookie_domain_acceptable'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libopenssl_sys-cebb6854215e1c73.rlib(openssl_sys-cebb6854215e1c73.openssl_sys.9garcgee-cgu.9.rcgu.o): in function `openssl_sys::init::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:517: undefined reference to `SSL_library_init'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:518: undefined reference to `SSL_load_error_strings'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:519: undefined reference to `OPENSSL_add_all_algorithms_noconf'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:521: undefined reference to `CRYPTO_num_locks'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:531: undefined reference to `CRYPTO_set_locking_callback'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libopenssl_sys-cebb6854215e1c73.rlib(openssl_sys-cebb6854215e1c73.openssl_sys.9garcgee-cgu.9.rcgu.o): in function `openssl_sys::set_id_callback':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:544: undefined reference to `CRYPTO_set_id_callback'
[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 `learning`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "78b099aee241984daddbbb447dc0eddb636a7b0e5bf60a4da51ce0cc08d0c1c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78b099aee241984daddbbb447dc0eddb636a7b0e5bf60a4da51ce0cc08d0c1c0", kill_on_drop: false }`
[INFO] [stdout] 78b099aee241984daddbbb447dc0eddb636a7b0e5bf60a4da51ce0cc08d0c1c0