[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] 3da081442fa73c1c8e136fb37e803b1eadb735dc
[INFO] checking Crypto-Spartan/matchmaker against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrypto-Spartan%2Fmatchmaker" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crypto-Spartan/matchmaker on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-9/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" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26bff09582b9b11599a51dea87cbf2cd4e02b13bc600d0e15866b6583af509e3
[INFO] running `Command { std: "docker" "start" "-a" "26bff09582b9b11599a51dea87cbf2cd4e02b13bc600d0e15866b6583af509e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26bff09582b9b11599a51dea87cbf2cd4e02b13bc600d0e15866b6583af509e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26bff09582b9b11599a51dea87cbf2cd4e02b13bc600d0e15866b6583af509e3", kill_on_drop: false }`
[INFO] [stdout] 26bff09582b9b11599a51dea87cbf2cd4e02b13bc600d0e15866b6583af509e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 565d3ec5239ee591c3a0e00cc208ebb8de6f5598b4fe3ba8f729f19f70907872
[INFO] running `Command { std: "docker" "start" "-a" "565d3ec5239ee591c3a0e00cc208ebb8de6f5598b4fe3ba8f729f19f70907872", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking coin_cbc_sys v0.1.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking coin_cbc v0.1.5
[INFO] [stderr]     Checking good_lp v1.1.3
[INFO] [stderr]     Checking 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: 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_panic)]` 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] 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_panic)]` 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] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "565d3ec5239ee591c3a0e00cc208ebb8de6f5598b4fe3ba8f729f19f70907872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565d3ec5239ee591c3a0e00cc208ebb8de6f5598b4fe3ba8f729f19f70907872", kill_on_drop: false }`
[INFO] [stdout] 565d3ec5239ee591c3a0e00cc208ebb8de6f5598b4fe3ba8f729f19f70907872