[INFO] cloning repository https://github.com/samuherek/edu-irtual-machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samuherek/edu-irtual-machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuherek%2Fedu-irtual-machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuherek%2Fedu-irtual-machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 279b202a4de14dec812780646a8c4bd28c70b484
[INFO] checking samuherek/edu-irtual-machine against try#a3a874232ae0a7586b5fbe7483c5a42e157bd62a for pr-151109
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuherek%2Fedu-irtual-machine" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samuherek/edu-irtual-machine
[INFO] finished tweaking git repo https://github.com/samuherek/edu-irtual-machine
[INFO] tweaked toml for git repo https://github.com/samuherek/edu-irtual-machine written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samuherek/edu-irtual-machine on toolchain a3a874232ae0a7586b5fbe7483c5a42e157bd62a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samuherek/edu-irtual-machine 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" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.25.2
[INFO] [stderr]   Downloaded strum v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfc8d786507dc4cea35238d097f69352c92c7e263c98654c25f940975111e4ce
[INFO] running `Command { std: "docker" "start" "-a" "dfc8d786507dc4cea35238d097f69352c92c7e263c98654c25f940975111e4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfc8d786507dc4cea35238d097f69352c92c7e263c98654c25f940975111e4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfc8d786507dc4cea35238d097f69352c92c7e263c98654c25f940975111e4ce", kill_on_drop: false }`
[INFO] [stdout] dfc8d786507dc4cea35238d097f69352c92c7e263c98654c25f940975111e4ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01a708cae4c02baa5fb48d860b36d7bee1497014499247914146620240481115
[INFO] running `Command { std: "docker" "start" "-a" "01a708cae4c02baa5fb48d860b36d7bee1497014499247914146620240481115", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]     Checking edu_virtual-machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `length` is never used
[INFO] [stdout]   --> src/register.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Register {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |    pub fn length(&self) -> usize {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack_frame_size` is never read
[INFO] [stdout]   --> src/cpu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CPU<'a> {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     stack_frame_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPU` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]  --> src/instructions.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Instruction {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]   --> src/instructions.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Instruction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn from_u8(val: u8) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `length` is never used
[INFO] [stdout]   --> src/register.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Register {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |    pub fn length(&self) -> usize {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack_frame_size` is never read
[INFO] [stdout]   --> src/cpu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct CPU<'a> {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     stack_frame_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPU` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]  --> src/instructions.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Instruction {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]   --> src/instructions.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Instruction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn from_u8(val: u8) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "01a708cae4c02baa5fb48d860b36d7bee1497014499247914146620240481115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a708cae4c02baa5fb48d860b36d7bee1497014499247914146620240481115", kill_on_drop: false }`
[INFO] [stdout] 01a708cae4c02baa5fb48d860b36d7bee1497014499247914146620240481115