[INFO] fetching crate ruverta 0.2.0...
[INFO] testing ruverta-0.2.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ruverta 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ruverta 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ruverta 0.2.0
[INFO] tweaked toml for crates.io crate ruverta 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruverta 0.2.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ruverta 0.2.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a
[INFO] running `Command { std: "docker" "start" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruverta v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `WriteOnly` is never constructed
[INFO] [stdout]   --> src/bus/mod.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Reg {
[INFO] [stdout]    |      --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     WriteOnly {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `clk` and `rst` are never read
[INFO] [stdout]   --> src/bus/axi_lite.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AXILiteSlave {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 13 |     name: Option<String>,
[INFO] [stdout] 14 |     clk: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 15 |     rst: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AXILiteSlave` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: variant `WriteOnly` is never constructed
[INFO] [stdout]   --> src/bus/mod.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Reg {
[INFO] [stdout]    |      --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     WriteOnly {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `clk` and `rst` are never read
[INFO] [stdout]   --> src/bus/axi_lite.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AXILiteSlave {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 13 |     name: Option<String>,
[INFO] [stdout] 14 |     clk: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 15 |     rst: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AXILiteSlave` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ruverta v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `WriteOnly` is never constructed
[INFO] [stdout]   --> src/bus/mod.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Reg {
[INFO] [stdout]    |      --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     WriteOnly {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `clk` and `rst` are never read
[INFO] [stdout]   --> src/bus/axi_lite.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AXILiteSlave {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 13 |     name: Option<String>,
[INFO] [stdout] 14 |     clk: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 15 |     rst: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AXILiteSlave` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: variant `WriteOnly` is never constructed
[INFO] [stderr]   --> src/bus/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum Reg {
[INFO] [stderr]    |      --- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 31 |     WriteOnly {
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `clk` and `rst` are never read
[INFO] [stderr]   --> src/bus/axi_lite.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct AXILiteSlave {
[INFO] [stderr]    |            ------------ fields in this struct
[INFO] [stderr] 13 |     name: Option<String>,
[INFO] [stderr] 14 |     clk: String,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 15 |     rst: String,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AXILiteSlave` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `ruverta` (lib) generated 2 warnings
[INFO] [stderr] warning: `ruverta` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/ruverta-4f9611ecc8433098)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/axi_lite_slave.rs (/opt/rustwide/target/release/deps/axi_lite_slave-0cbe2b36819e1e2b)
[INFO] [stdout] test module::test_instant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test axi_lite_slave ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- axi_lite_slave stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'axi_lite_slave' (437) panicked at tests/axi_lite_slave.rs:7:1:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x583cd7f1fa81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x583cd7f33c5a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x583cd7f23f1c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x583cd7efbe86 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x583cd7f17ff9 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x583cd7ea8a20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x583cd7f181b2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x583cd7efbf32 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x583cd7ef4cb9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x583cd7efcb2d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x583cd7f3438c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x583cd7f34162 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x583cd7e9b830 - axi_lite_slave[c86817a8b1e49db0]::axi_lite_slave
[INFO] [stdout]   13:     0x583cd7e9bc99 - <axi_lite_slave[c86817a8b1e49db0]::axi_lite_slave::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x583cd7e9bd0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x583cd7ea9375 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x583cd7ea2c34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x583cd7eac4d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x583cd7f1f169 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x727529a03dfa - <unknown>
[INFO] [stdout]   20:     0x727529a973d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     axi_lite_slave
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test axi_lite_slave`
[INFO] running `Command { std: "docker" "inspect" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a", kill_on_drop: false }`
[INFO] [stdout] 5b28ec78717436d5eca96c8f2ff4364b7e9f89317b56fc21f1a5b4623a06ca5a
