[INFO] cloning repository tcrustifarians/rust-rack
[INFO] running `"git" "clone" "--bare" "git://github.com/tcrustifarians/rust-rack.git" "work/cache/sources/gh/tcrustifarians/rust-rack"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/tcrustifarians/rust-rack'...
[INFO] running `"git" "clone" "work/cache/sources/gh/tcrustifarians/rust-rack" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tcrustifarians/rust-rack"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tcrustifarians/rust-rack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tcrustifarians/rust-rack" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tcrustifarians/rust-rack"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tcrustifarians/rust-rack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fd13a10000dbdc674ed943f531f98f8ebdc3a210
[INFO] sha for GitHub repo tcrustifarians/rust-rack: fd13a10000dbdc674ed943f531f98f8ebdc3a210
[INFO] validating manifest of tcrustifarians/rust-rack on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tcrustifarians/rust-rack on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tcrustifarians/rust-rack
[INFO] finished frobbing tcrustifarians/rust-rack
[INFO] frobbed toml for tcrustifarians/rust-rack written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tcrustifarians/rust-rack/Cargo.toml
[INFO] started frobbing tcrustifarians/rust-rack
[INFO] finished frobbing tcrustifarians/rust-rack
[INFO] frobbed toml for tcrustifarians/rust-rack written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tcrustifarians/rust-rack/Cargo.toml
[INFO] crate tcrustifarians/rust-rack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tcrustifarians/rust-rack/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tcrustifarians/rust-rack against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tcrustifarians/rust-rack:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 97553c44799bf776491f23f0212adc2d4918119ca3f29ea96dc60b42877bd605
[INFO] running `"docker" "start" "-a" "97553c44799bf776491f23f0212adc2d4918119ca3f29ea96dc60b42877bd605"`
[INFO] [stderr]    Compiling rack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the feature `cstr_to_str` has been stable since 1.4.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(cstr_to_str)]
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] 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/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rack.rack.3jh0vae3-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/librack.so" "/opt/crater/target/debug/deps/rack.4tx51eg3ml2a87d5.rcgu.o" "/opt/crater/target/debug/deps/rack.2ty4m3h8zezum52p.rcgu.o" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lruby" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/liblibc-855825b224a0aad6.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libstd-196d0eff8e603c0a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libpanic_unwind-1c597f5941591e04.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libbacktrace-a20af2d3380aa511.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libbacktrace_sys-f989f9e071798586.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/librustc_demangle-52fb60b932b5ef90.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libcfg_if-90a3fdc679697856.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libhashbrown-06d10270cfa51644.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/librustc_std_workspace_alloc-8abb913fca550f79.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libunwind-31fd2baab47b156c.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/liblibc-0862cc65189bd4af.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/liballoc-8010b8629f5aa3e5.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/librustc_std_workspace_core-2d032fe7d4e1e163.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcJSAP4q/libcore-622fdce0dc084cba.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustcJSAP4q/libcompiler_builtins-a17fdd0a687135a8.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" "-shared"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lruby
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rack`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "97553c44799bf776491f23f0212adc2d4918119ca3f29ea96dc60b42877bd605"`
[INFO] running `"docker" "rm" "-f" "97553c44799bf776491f23f0212adc2d4918119ca3f29ea96dc60b42877bd605"`
[INFO] [stdout] 97553c44799bf776491f23f0212adc2d4918119ca3f29ea96dc60b42877bd605