[INFO] cloning repository https://github.com/Baidicoot/ModRiscVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Baidicoot/ModRiscVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaidicoot%2FModRiscVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaidicoot%2FModRiscVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd742acb4986ff47d42427ea9f1c95e4f3063e9f
[INFO] testing Baidicoot/ModRiscVM against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaidicoot%2FModRiscVM" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Baidicoot/ModRiscVM on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Baidicoot/ModRiscVM
[INFO] finished tweaking git repo https://github.com/Baidicoot/ModRiscVM
[INFO] tweaked toml for git repo https://github.com/Baidicoot/ModRiscVM written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/Baidicoot/ModRiscVM already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab1932433751ad39196d48febfd2143ef2d22ef333eb58c9bc46a2645f5321cb
[INFO] running `Command { std: "docker" "start" "-a" "ab1932433751ad39196d48febfd2143ef2d22ef333eb58c9bc46a2645f5321cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab1932433751ad39196d48febfd2143ef2d22ef333eb58c9bc46a2645f5321cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1932433751ad39196d48febfd2143ef2d22ef333eb58c9bc46a2645f5321cb", kill_on_drop: false }`
[INFO] [stdout] ab1932433751ad39196d48febfd2143ef2d22ef333eb58c9bc46a2645f5321cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10b87e0f44cd9be9013c773f39113f1164e02ff2b85f4803fb695c2dc379a73d
[INFO] running `Command { std: "docker" "start" "-a" "10b87e0f44cd9be9013c773f39113f1164e02ff2b85f4803fb695c2dc379a73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling modVM v0.3.0
[INFO] [stderr]    Compiling RISC_16_bit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_to_from_bytes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RISC_16_bit` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `risc_16_bit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `topF` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let topF = match channels[0].query(LoadRequest(self.registers[7])).unwrap() {
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `top_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `topE` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let topE = match channels[0].query(LoadRequest(self.registers[6])).unwrap() {
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `top_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `RISC_16_bit` due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "10b87e0f44cd9be9013c773f39113f1164e02ff2b85f4803fb695c2dc379a73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b87e0f44cd9be9013c773f39113f1164e02ff2b85f4803fb695c2dc379a73d", kill_on_drop: false }`
[INFO] [stdout] 10b87e0f44cd9be9013c773f39113f1164e02ff2b85f4803fb695c2dc379a73d