[INFO] cloning repository https://github.com/jtdubs/emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtdubs/emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdubs%2Femu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdubs%2Femu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7160a2b844be83570a70761bef1f9ddd9c2a164
[INFO] checking jtdubs/emu against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdubs%2Femu" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtdubs/emu on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtdubs/emu
[INFO] finished tweaking git repo https://github.com/jtdubs/emu
[INFO] tweaked toml for git repo https://github.com/jtdubs/emu written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jtdubs/emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de19fb9d1f4e615e78e122716fb60c52eec339197b0bdfb950ea49e3c7ac0b55
[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" "de19fb9d1f4e615e78e122716fb60c52eec339197b0bdfb950ea49e3c7ac0b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de19fb9d1f4e615e78e122716fb60c52eec339197b0bdfb950ea49e3c7ac0b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de19fb9d1f4e615e78e122716fb60c52eec339197b0bdfb950ea49e3c7ac0b55", kill_on_drop: false }`
[INFO] [stdout] de19fb9d1f4e615e78e122716fb60c52eec339197b0bdfb950ea49e3c7ac0b55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d402efe1fcf21361ce554e8e4ab05197ef013ea696938dc69ad57488e3f8dfb
[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" "3d402efe1fcf21361ce554e8e4ab05197ef013ea696938dc69ad57488e3f8dfb", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking arc-swap v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `bench`
[INFO] [stdout]    --> src/debugger.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn bench(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bench`
[INFO] [stdout]    --> src/debugger.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn bench(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 13.28s
[INFO] running `Command { std: "docker" "inspect" "3d402efe1fcf21361ce554e8e4ab05197ef013ea696938dc69ad57488e3f8dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d402efe1fcf21361ce554e8e4ab05197ef013ea696938dc69ad57488e3f8dfb", kill_on_drop: false }`
[INFO] [stdout] 3d402efe1fcf21361ce554e8e4ab05197ef013ea696938dc69ad57488e3f8dfb