[INFO] cloning repository https://github.com/tismith/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tismith/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftismith%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftismith%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 249a23a1491c16a2cbf478c2075bba55ed4a2ead
[INFO] checking tismith/chip8 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftismith%2Fchip8" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tismith/chip8 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tismith/chip8
[INFO] finished tweaking git repo https://github.com/tismith/chip8
[INFO] tweaked toml for git repo https://github.com/tismith/chip8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tismith/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce271862ccbf7d919d4dc2c25ad98a7a4f7bfeefd716d7844b5a842d821b3cea
[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" "ce271862ccbf7d919d4dc2c25ad98a7a4f7bfeefd716d7844b5a842d821b3cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce271862ccbf7d919d4dc2c25ad98a7a4f7bfeefd716d7844b5a842d821b3cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce271862ccbf7d919d4dc2c25ad98a7a4f7bfeefd716d7844b5a842d821b3cea", kill_on_drop: false }`
[INFO] [stdout] ce271862ccbf7d919d4dc2c25ad98a7a4f7bfeefd716d7844b5a842d821b3cea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7b6c6f7797e8e42db496bd1f7de1d1153bd73c6cb6a9fd6e302f48fa0dca1a3
[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" "b7b6c6f7797e8e42db496bd1f7de1d1153bd73c6cb6a9fd6e302f48fa0dca1a3", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]    Compiling quote v0.6.5
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking assert_cli v0.6.3
[INFO] [stderr]     Checking chip8-tismith v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/chip8.rs:131:43
[INFO] [stdout]     |
[INFO] [stdout] 131 |             )).map_err(failure::err_msg)?;;
[INFO] [stdout]     |                                           ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/bin/chip8.rs:131:43
[INFO] [stdout]     |
[INFO] [stdout] 131 |             )).map_err(failure::err_msg)?;;
[INFO] [stdout]     |                                           ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.83s
[INFO] running `Command { std: "docker" "inspect" "b7b6c6f7797e8e42db496bd1f7de1d1153bd73c6cb6a9fd6e302f48fa0dca1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b6c6f7797e8e42db496bd1f7de1d1153bd73c6cb6a9fd6e302f48fa0dca1a3", kill_on_drop: false }`
[INFO] [stdout] b7b6c6f7797e8e42db496bd1f7de1d1153bd73c6cb6a9fd6e302f48fa0dca1a3