[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 1.49.0 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-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gaelroue/learning-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-12/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/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[INFO] the lockfile is outdated, regenerating it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" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 0367af26f669269002ffea958b325598033f58e859a102454f76be9de01a7eb6
[INFO] running `Command { std: "docker" "start" "-a" "0367af26f669269002ffea958b325598033f58e859a102454f76be9de01a7eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0367af26f669269002ffea958b325598033f58e859a102454f76be9de01a7eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0367af26f669269002ffea958b325598033f58e859a102454f76be9de01a7eb6", kill_on_drop: false }`
[INFO] [stdout] 0367af26f669269002ffea958b325598033f58e859a102454f76be9de01a7eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8507d500d7cd92c3587d279433e62ebf98e5c5beeff24343fe26847b39fd113c
[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" "8507d500d7cd92c3587d279433e62ebf98e5c5beeff24343fe26847b39fd113c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.learning.crs453o2-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4" "/opt/rustwide/target/debug/deps/learning-ace02fec0e2770b4.4et4s1uncabkji2o.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-30dc3f7489792a9e/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libregex-6e4f4b3c92373195.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-fb8365ae1d572763.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-0c1978a6494a135e.rlib" "/opt/rustwide/target/debug/deps/libthread_local-b57cbe40a531f595.rlib" "/opt/rustwide/target/debug/deps/libthread_id-0d782e5dedaac954.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-6bda9e01f9dcafdd.rlib" "/opt/rustwide/target/debug/deps/libmemchr-8375d80a0d66b866.rlib" "/opt/rustwide/target/debug/deps/libcurl-35614dd578a0ea6d.rlib" "/opt/rustwide/target/debug/deps/libopenssl_probe-0807aab40c872817.rlib" "/opt/rustwide/target/debug/deps/libcurl_sys-7064febed196db4d.rlib" "/opt/rustwide/target/debug/deps/libopenssl_sys-cefe31085b6a2c0f.rlib" "/opt/rustwide/target/debug/deps/liblibz_sys-ba6301eefa9e115b.rlib" "/opt/rustwide/target/debug/deps/liblibc-e0846f52673851a4.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.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-7064febed196db4d.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-7064febed196db4d.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-cefe31085b6a2c0f.rlib(openssl_sys-cefe31085b6a2c0f.openssl_sys.76htfyc1-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-cefe31085b6a2c0f.rlib(openssl_sys-cefe31085b6a2c0f.openssl_sys.76htfyc1-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" "8507d500d7cd92c3587d279433e62ebf98e5c5beeff24343fe26847b39fd113c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8507d500d7cd92c3587d279433e62ebf98e5c5beeff24343fe26847b39fd113c", kill_on_drop: false }`
[INFO] [stdout] 8507d500d7cd92c3587d279433e62ebf98e5c5beeff24343fe26847b39fd113c