[INFO] cloning repository https://github.com/Crypto-Spartan/matchmaker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Crypto-Spartan/matchmaker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypto-Spartan%2Fmatchmaker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypto-Spartan%2Fmatchmaker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3422e7e69688585cec8778c4c6ce3424bf6a51ee
[INFO] building Crypto-Spartan/matchmaker against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypto-Spartan%2Fmatchmaker" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crypto-Spartan/matchmaker on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Crypto-Spartan/matchmaker
[INFO] finished tweaking git repo https://github.com/Crypto-Spartan/matchmaker
[INFO] tweaked toml for git repo https://github.com/Crypto-Spartan/matchmaker written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/Crypto-Spartan/matchmaker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coin_cbc_sys v0.1.1
[INFO] [stderr]   Downloaded coin_cbc v0.1.5
[INFO] [stderr]   Downloaded good_lp v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bf67d575d4681ff066037f4e86e2b4e8ba5b4b5d1b745891276d5f61e01afab
[INFO] running `Command { std: "docker" "start" "-a" "4bf67d575d4681ff066037f4e86e2b4e8ba5b4b5d1b745891276d5f61e01afab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bf67d575d4681ff066037f4e86e2b4e8ba5b4b5d1b745891276d5f61e01afab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf67d575d4681ff066037f4e86e2b4e8ba5b4b5d1b745891276d5f61e01afab", kill_on_drop: false }`
[INFO] [stdout] 4bf67d575d4681ff066037f4e86e2b4e8ba5b4b5d1b745891276d5f61e01afab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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=forbid" "-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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c647492e7a6ffabad2b283566805dbd38e674428f1a209d950172800eb4ceb0b
[INFO] running `Command { std: "docker" "start" "-a" "c647492e7a6ffabad2b283566805dbd38e674428f1a209d950172800eb4ceb0b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling coin_cbc_sys v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling coin_cbc v0.1.5
[INFO] [stderr]    Compiling good_lp v1.1.3
[INFO] [stderr]    Compiling matchmaker v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `max_team_diff` is never read
[INFO] [stdout]    --> src/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             max_team_diff = 1100;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:129:26
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Err(e) => panic!(e)
[INFO] [stdout]     |                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Err(e) => panic!("{}", e)
[INFO] [stdout]     |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Err(e) => std::panic::panic_any(e)
[INFO] [stdout]     |                   ~~~~~~~~~~~~~~~~~~~~~
[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/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.matchmaker.da31786f-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41.egbhmjiwxx9k5kn.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libgood_lp-d293c3450fc5d3df.rlib" "/opt/rustwide/target/debug/deps/libcoin_cbc-812541ed4e94374e.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b33cd6b8ee13db74.rlib" "/opt/rustwide/target/debug/deps/libcoin_cbc_sys-dc0b88714b8275a1.rlib" "/opt/rustwide/target/debug/deps/libfnv-22cd72556da4b99c.rlib" "/opt/rustwide/target/debug/deps/libitertools-9ade512e5033c232.rlib" "/opt/rustwide/target/debug/deps/libeither-8ed8bc54e89b5c30.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1b64d5fe7a3c3d7f.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7f86684b9679284.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-10a87791239bd676.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-0e6cad6dd623d38e.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-9d05dd05a4d51b33.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-a60ff138fe1adfad.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0e9344458c09713e.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-ef3b808d96f639bf.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e3ce420901586b53.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-546bece8dd1bea42.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9b358af16d7d7aa1.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-554cd499fe1a3b52.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-d105877dbe329cd1.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8fec8a74c706e4b4.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e869a247063ed69a.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-4896c4057dc9553a.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2a6a2797f7a73818.rlib" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0e3656b1fda5fd7b.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-1f103368fa522bc0.rlib" "-Wl,-Bdynamic" "-lCbcSolver" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/461e8078010433ff7de2db2aaae8a3cfb0847215/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/matchmaker-4c72e1c1c8f4ac41" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lCbcSolver
[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 `matchmaker` due to 2 previous errors; 2 warnings emitted
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "c647492e7a6ffabad2b283566805dbd38e674428f1a209d950172800eb4ceb0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c647492e7a6ffabad2b283566805dbd38e674428f1a209d950172800eb4ceb0b", kill_on_drop: false }`
[INFO] [stdout] c647492e7a6ffabad2b283566805dbd38e674428f1a209d950172800eb4ceb0b