[INFO] cloning repository https://github.com/pertark/shenzhen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pertark/shenzhen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpertark%2Fshenzhen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpertark%2Fshenzhen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bac90d50e1c158b54b773346603d2d14b6c2404a
[INFO] checking pertark/shenzhen against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpertark%2Fshenzhen" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pertark/shenzhen on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pertark/shenzhen
[INFO] finished tweaking git repo https://github.com/pertark/shenzhen
[INFO] tweaked toml for git repo https://github.com/pertark/shenzhen written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pertark/shenzhen 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" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be7813b03c44416eb0390cc46ef108b490f7cf0e9a96dbe3a0bfecdc0f49bcf0
[INFO] running `Command { std: "docker" "start" "-a" "be7813b03c44416eb0390cc46ef108b490f7cf0e9a96dbe3a0bfecdc0f49bcf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be7813b03c44416eb0390cc46ef108b490f7cf0e9a96dbe3a0bfecdc0f49bcf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7813b03c44416eb0390cc46ef108b490f7cf0e9a96dbe3a0bfecdc0f49bcf0", kill_on_drop: false }`
[INFO] [stdout] be7813b03c44416eb0390cc46ef108b490f7cf0e9a96dbe3a0bfecdc0f49bcf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70138c79b31417e46920562afb2779358c8aca71b683ea3f98ab664462f436f3
[INFO] running `Command { std: "docker" "start" "-a" "70138c79b31417e46920562afb2779358c8aca71b683ea3f98ab664462f436f3", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking shenzhen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/device.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]   --> src/device.rs:88:26
[INFO] [stdout]    |
[INFO] [stdout] 88 |                     Some(cond) => {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/device.rs:105:40
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn push_update_with(&mut self, data: i16) {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/devices/mc.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Opcode::Jmp(label) => {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GlobalState` is never constructed
[INFO] [stdout]  --> src/board.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct GlobalState {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/board.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl GlobalState {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 9 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/board.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `advance` is never used
[INFO] [stdout]   --> src/board.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 24 |     pub fn advance(&mut self) {}
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step` is never used
[INFO] [stdout]  --> src/device.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Device {
[INFO] [stdout]   |           ------ method in this trait
[INFO] [stdout] 7 |     fn step(&mut self);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_attachments` is never used
[INFO] [stdout]   --> src/device.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait McDevice {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn update_attachments(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/device.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |     Sleep(u32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeviceState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 58 -     Sleep(u32),
[INFO] [stdout] 58 +     Sleep(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Exec`, `Write`, and `Read` are never constructed
[INFO] [stdout]   --> src/device.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum DeviceState {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 58 |     Sleep(u32),
[INFO] [stdout] 59 |     Exec,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 60 |     Write,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 61 |     Read,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeviceState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/device.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct SimpleIOWire {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 101 |     value: i16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleIOWire` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/device.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct XBusWire {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 116 |     value: Option<i16>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `XBusWire` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Attachment` is never used
[INFO] [stdout]    --> src/device.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub enum Attachment {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_value_from_attachment` is never used
[INFO] [stdout]    --> src/device.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl Attachment {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 125 |     fn read_value_from_attachment(&self) -> Option<i16> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attachments` is never read
[INFO] [stdout]    --> src/devices/mc.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub struct MC4000X {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 166 |     attachments: (
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]   --> src/device.rs:88:26
[INFO] [stdout]    |
[INFO] [stdout] 88 |                     Some(cond) => {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/device.rs:105:40
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn push_update_with(&mut self, data: i16) {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/devices/mc.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Opcode::Jmp(label) => {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GlobalState` is never constructed
[INFO] [stdout]  --> src/board.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct GlobalState {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/board.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl GlobalState {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 9 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/board.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `advance` is never used
[INFO] [stdout]   --> src/board.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 24 |     pub fn advance(&mut self) {}
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step` is never used
[INFO] [stdout]  --> src/device.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Device {
[INFO] [stdout]   |           ------ method in this trait
[INFO] [stdout] 7 |     fn step(&mut self);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_attachments` is never used
[INFO] [stdout]   --> src/device.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait McDevice {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn update_attachments(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/device.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 |     Sleep(u32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeviceState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 58 -     Sleep(u32),
[INFO] [stdout] 58 +     Sleep(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Exec`, `Write`, and `Read` are never constructed
[INFO] [stdout]   --> src/device.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum DeviceState {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 58 |     Sleep(u32),
[INFO] [stdout] 59 |     Exec,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 60 |     Write,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 61 |     Read,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeviceState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/device.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct SimpleIOWire {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 101 |     value: i16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleIOWire` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/device.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct XBusWire {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 116 |     value: Option<i16>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `XBusWire` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Attachment` is never used
[INFO] [stdout]    --> src/device.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub enum Attachment {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_value_from_attachment` is never used
[INFO] [stdout]    --> src/device.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl Attachment {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 125 |     fn read_value_from_attachment(&self) -> Option<i16> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attachments` is never read
[INFO] [stdout]    --> src/devices/mc.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub struct MC4000X {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 166 |     attachments: (
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "70138c79b31417e46920562afb2779358c8aca71b683ea3f98ab664462f436f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70138c79b31417e46920562afb2779358c8aca71b683ea3f98ab664462f436f3", kill_on_drop: false }`
[INFO] [stdout] 70138c79b31417e46920562afb2779358c8aca71b683ea3f98ab664462f436f3