[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] testing Crypto-Spartan/matchmaker against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypto-Spartan%2Fmatchmaker" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crypto-Spartan/matchmaker on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-5/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" "+1.59.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e02ecdfec87e0886349930f856dca354f4889e6366a0e33009875b3daf4ad4fb
[INFO] running `Command { std: "docker" "start" "-a" "e02ecdfec87e0886349930f856dca354f4889e6366a0e33009875b3daf4ad4fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e02ecdfec87e0886349930f856dca354f4889e6366a0e33009875b3daf4ad4fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e02ecdfec87e0886349930f856dca354f4889e6366a0e33009875b3daf4ad4fb", kill_on_drop: false }`
[INFO] [stdout] e02ecdfec87e0886349930f856dca354f4889e6366a0e33009875b3daf4ad4fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b970f28a29fa368dbc5ada3d22c1068c61e45b56a9539699fe29888172e4b660
[INFO] running `Command { std: "docker" "start" "-a" "b970f28a29fa368dbc5ada3d22c1068c61e45b56a9539699fe29888172e4b660", 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]    Compiling coin_cbc_sys v0.1.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling coin_cbc v0.1.5
[INFO] [stderr]    Compiling itertools v0.10.1
[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-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.matchmaker.9a69d2f2-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755.ktgtf5e4wkgetc.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libgood_lp-cfddf5f224ff136d.rlib" "/opt/rustwide/target/debug/deps/libcoin_cbc-c8aa173be4bd2b86.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-02ff0d0fbc57b9b4.rlib" "/opt/rustwide/target/debug/deps/libcoin_cbc_sys-bba61107e258856d.rlib" "/opt/rustwide/target/debug/deps/libfnv-cb175ca084a41bf7.rlib" "/opt/rustwide/target/debug/deps/libitertools-d013b5c31c8aac7a.rlib" "/opt/rustwide/target/debug/deps/libeither-f3eb75e6114deaca.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a46a068050a12a4b.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-1df56095db9453cb.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-9062de483386e50b.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-b988ab269ff13602.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-1bc822d886d4f7bd.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-963eca8df4c224a6.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d805b480c9102e58.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-06dfdbc22b935051.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-d7523a4d118e6572.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-5d7898c7fac3a07d.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-8c2bdbab4845bf3d.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-d578639df0547b30.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-58bbb7b1efa3a5e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-4c9b082d197c16f8.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-70f9ed6d8e7a5ce6.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8c0a241d0360fa53.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-bad7ed93fdd31371.rlib" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-98b4d121af2b7335.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-1d9f7e5920635d15.rlib" "-Wl,-Bdynamic" "-lCbcSolver" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.59.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/matchmaker-c78718d2bdee7755" "-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
[INFO] running `Command { std: "docker" "inspect" "b970f28a29fa368dbc5ada3d22c1068c61e45b56a9539699fe29888172e4b660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b970f28a29fa368dbc5ada3d22c1068c61e45b56a9539699fe29888172e4b660", kill_on_drop: false }`
[INFO] [stdout] b970f28a29fa368dbc5ada3d22c1068c61e45b56a9539699fe29888172e4b660