[INFO] cloning repository https://github.com/rabibh/cpu_emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rabibh/cpu_emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frabibh%2Fcpu_emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frabibh%2Fcpu_emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 024fe33023cd164aad776191135af23085715410
[INFO] testing rabibh/cpu_emulator against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frabibh%2Fcpu_emulator" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rabibh/cpu_emulator on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rabibh/cpu_emulator
[INFO] finished tweaking git repo https://github.com/rabibh/cpu_emulator
[INFO] tweaked toml for git repo https://github.com/rabibh/cpu_emulator written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/rabibh/cpu_emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 421384a5424c57caffea79d4e6d4a6d99ec22e60a9d2b3851a9e05b23b6619b8
[INFO] running `Command { std: "docker" "start" "-a" "421384a5424c57caffea79d4e6d4a6d99ec22e60a9d2b3851a9e05b23b6619b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "421384a5424c57caffea79d4e6d4a6d99ec22e60a9d2b3851a9e05b23b6619b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421384a5424c57caffea79d4e6d4a6d99ec22e60a9d2b3851a9e05b23b6619b8", kill_on_drop: false }`
[INFO] [stdout] 421384a5424c57caffea79d4e6d4a6d99ec22e60a9d2b3851a9e05b23b6619b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccce8d720994812b8746e6b8ec5d2e7c168de9e0d231cdcde42dbb93cc7b1020
[INFO] running `Command { std: "docker" "start" "-a" "ccce8d720994812b8746e6b8ec5d2e7c168de9e0d231cdcde42dbb93cc7b1020", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling regex-syntax v0.5.5
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling cpu_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/tokenizer.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     (codes)
[INFO] [stdout]     |     ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` 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 7.28s
[INFO] running `Command { std: "docker" "inspect" "ccce8d720994812b8746e6b8ec5d2e7c168de9e0d231cdcde42dbb93cc7b1020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccce8d720994812b8746e6b8ec5d2e7c168de9e0d231cdcde42dbb93cc7b1020", kill_on_drop: false }`
[INFO] [stdout] ccce8d720994812b8746e6b8ec5d2e7c168de9e0d231cdcde42dbb93cc7b1020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4b18dc99f208a4d0d407ca2546ad696c1762c6138d37600bfdbbb77de106814
[INFO] running `Command { std: "docker" "start" "-a" "c4b18dc99f208a4d0d407ca2546ad696c1762c6138d37600bfdbbb77de106814", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpu_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/tokenizer.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     (codes)
[INFO] [stdout]     |     ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c4b18dc99f208a4d0d407ca2546ad696c1762c6138d37600bfdbbb77de106814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b18dc99f208a4d0d407ca2546ad696c1762c6138d37600bfdbbb77de106814", kill_on_drop: false }`
[INFO] [stdout] c4b18dc99f208a4d0d407ca2546ad696c1762c6138d37600bfdbbb77de106814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b3c2281334ceedc1f71e3a749e19d9e3cabf52c1aad1b41d5e6be959c672207
[INFO] running `Command { std: "docker" "start" "-a" "7b3c2281334ceedc1f71e3a749e19d9e3cabf52c1aad1b41d5e6be959c672207", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/tokenizer.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     (codes)
[INFO] [stderr]     |     ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cpu_emulator` (bin "cpu_emulator" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.41s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cpu_emulator-942079f1724dc8be)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b3c2281334ceedc1f71e3a749e19d9e3cabf52c1aad1b41d5e6be959c672207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3c2281334ceedc1f71e3a749e19d9e3cabf52c1aad1b41d5e6be959c672207", kill_on_drop: false }`
[INFO] [stdout] 7b3c2281334ceedc1f71e3a749e19d9e3cabf52c1aad1b41d5e6be959c672207