[INFO] cloning repository https://github.com/mrk-its/sim6502
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrk-its/sim6502" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrk-its%2Fsim6502", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrk-its%2Fsim6502'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e4d0f365a3618725ccd838af0bdb3e2089c449c
[INFO] checking mrk-its/sim6502 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrk-its%2Fsim6502" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrk-its/sim6502 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrk-its/sim6502
[INFO] finished tweaking git repo https://github.com/mrk-its/sim6502
[INFO] tweaked toml for git repo https://github.com/mrk-its/sim6502 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mrk-its/sim6502 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/mrk-its/gdbstub_mos_arch`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_env_logger v0.4.0
[INFO] [stderr]   Downloaded log v0.4.16
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded scroll_derive v0.11.0
[INFO] [stderr]   Downloaded scroll v0.11.0
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded managed v0.8.0
[INFO] [stderr]   Downloaded syn v1.0.89
[INFO] [stderr]   Downloaded gdbstub v0.6.3
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded quote v1.0.17
[INFO] [stderr]   Downloaded goblin v0.6.0
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] [stderr]   Downloaded emulator_6502 v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0f047a020ce21bdb3ade1fabcf51b3774e8cb0f47adaa512b2d8f95ef5388a8
[INFO] running `Command { std: "docker" "start" "-a" "f0f047a020ce21bdb3ade1fabcf51b3774e8cb0f47adaa512b2d8f95ef5388a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0f047a020ce21bdb3ade1fabcf51b3774e8cb0f47adaa512b2d8f95ef5388a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f047a020ce21bdb3ade1fabcf51b3774e8cb0f47adaa512b2d8f95ef5388a8", kill_on_drop: false }`
[INFO] [stdout] f0f047a020ce21bdb3ade1fabcf51b3774e8cb0f47adaa512b2d8f95ef5388a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e959ed8d72eb5c0987108d36570bcc456fc6d0f872770392b80fccaf26b75937
[INFO] running `Command { std: "docker" "start" "-a" "e959ed8d72eb5c0987108d36570bcc456fc6d0f872770392b80fccaf26b75937", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking managed v0.8.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking emulator_6502 v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking gdbstub v0.6.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking gdbstub_mos_arch v0.1.0 (https://github.com/mrk-its/gdbstub_mos_arch#8f44e615)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling scroll_derive v0.11.0
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.6.0
[INFO] [stderr]     Checking sim6502 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `STB_GLOBAL`, `st_bind`
[INFO] [stdout]  --> src/emu.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use goblin::elf::sym::{st_bind, STB_GLOBAL};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `STB_GLOBAL`, `st_bind`
[INFO] [stdout]  --> src/emu.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use goblin::elf::sym::{st_bind, STB_GLOBAL};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signal`
[INFO] [stdout]    --> src/gdb/mod.rs:107:26
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn resume(&mut self, signal: Option<Signal>) -> Result<(), Self::Error> {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_signal`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signal`
[INFO] [stdout]    --> src/gdb/mod.rs:107:26
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn resume(&mut self, signal: Option<Signal>) -> Result<(), Self::Error> {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_signal`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filename` is never read
[INFO] [stdout]   --> src/emu.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct InMemoryFile {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 26 |     pub filename: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filename` is never read
[INFO] [stdout]   --> src/emu.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct InMemoryFile {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 26 |     pub filename: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "e959ed8d72eb5c0987108d36570bcc456fc6d0f872770392b80fccaf26b75937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e959ed8d72eb5c0987108d36570bcc456fc6d0f872770392b80fccaf26b75937", kill_on_drop: false }`
[INFO] [stdout] e959ed8d72eb5c0987108d36570bcc456fc6d0f872770392b80fccaf26b75937