[INFO] cloning repository https://github.com/mbpf1090/chip8-disAssembler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbpf1090/chip8-disAssembler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbpf1090%2Fchip8-disAssembler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbpf1090%2Fchip8-disAssembler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8626dab8a2a2e621c51b28819d47289c51733da8
[INFO] checking mbpf1090/chip8-disAssembler against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbpf1090%2Fchip8-disAssembler" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mbpf1090/chip8-disAssembler on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mbpf1090/chip8-disAssembler
[INFO] finished tweaking git repo https://github.com/mbpf1090/chip8-disAssembler
[INFO] tweaked toml for git repo https://github.com/mbpf1090/chip8-disAssembler written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mbpf1090/chip8-disAssembler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.5.0
[INFO] [stderr]   Downloaded array-macro v1.0.3
[INFO] [stderr]   Downloaded enum-map v0.5.0
[INFO] [stderr]   Downloaded enumset_derive v0.3.1
[INFO] [stderr]   Downloaded cc v1.0.36
[INFO] [stderr]   Downloaded libc v0.2.53
[INFO] [stderr]   Downloaded cursive v0.11.2
[INFO] [stderr]   Downloaded enum-map-internals v0.1.2
[INFO] [stderr]   Downloaded enumset v0.3.18
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[INFO] [stderr]   Downloaded hashbrown v0.2.2
[INFO] [stderr]   Downloaded syn v0.15.33
[INFO] [stderr]   Downloaded enum-map-derive v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef4ca9457d6f1bd9e2edd792bbaf049295221debffba712ea4fc78fa17f07d3b
[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" "ef4ca9457d6f1bd9e2edd792bbaf049295221debffba712ea4fc78fa17f07d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef4ca9457d6f1bd9e2edd792bbaf049295221debffba712ea4fc78fa17f07d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4ca9457d6f1bd9e2edd792bbaf049295221debffba712ea4fc78fa17f07d3b", kill_on_drop: false }`
[INFO] [stdout] ef4ca9457d6f1bd9e2edd792bbaf049295221debffba712ea4fc78fa17f07d3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56059313fc08939978e5d4848c039c5be37c163e6f400781b9630368b85e25fe
[INFO] running `Command { std: "docker" "start" "-a" "56059313fc08939978e5d4848c039c5be37c163e6f400781b9630368b85e25fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking hashbrown v0.2.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking enum-map-internals v0.1.2
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]     Checking toml v0.5.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking signal-hook-registry v1.0.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking signal-hook v0.1.9
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling enum-map-derive v0.4.1
[INFO] [stderr]    Compiling enumset_derive v0.3.1
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]     Checking enumset v0.3.18
[INFO] [stderr]     Checking cursive v0.11.2
[INFO] [stderr]     Checking c8-disassembler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = f.read_to_end(&mut buff)?;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = f.read_to_end(&mut buff)?;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.77s
[INFO] running `Command { std: "docker" "inspect" "56059313fc08939978e5d4848c039c5be37c163e6f400781b9630368b85e25fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56059313fc08939978e5d4848c039c5be37c163e6f400781b9630368b85e25fe", kill_on_drop: false }`
[INFO] [stdout] 56059313fc08939978e5d4848c039c5be37c163e6f400781b9630368b85e25fe