[INFO] fetching crate ruverta 0.2.0...
[INFO] testing ruverta-0.2.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ruverta 0.2.0 into /workspace/builds/worker-2-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruverta 0.2.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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] 2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1
[INFO] running `Command { std: "docker" "start" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", 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" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", 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" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "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 1.26s
[INFO] running `Command { std: "docker" "inspect" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", 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" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "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 1.62s
[INFO] running `Command { std: "docker" "inspect" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", 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" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "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 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/ruverta/4f9611ecc8433098/out/ruverta-4f9611ecc8433098)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]      Running tests/axi_lite_slave.rs (/opt/rustwide/target/release/build/ruverta/0cbe2b36819e1e2b/out/axi_lite_slave-0cbe2b36819e1e2b)
[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' (431) 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:     0x58a3a76f0841 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x58a3a770473a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x58a3a76f4a5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x58a3a76ccac6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x58a3a76e8cf9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x58a3a7679890 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x58a3a76e8eb2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x58a3a76ccb72 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x58a3a76c5889 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x58a3a76cd77d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x58a3a7704e6c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x58a3a7704c42 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x58a3a766c800 - axi_lite_slave[37092cef67929bde]::axi_lite_slave
[INFO] [stdout]   13:     0x58a3a766cc69 - <axi_lite_slave[37092cef67929bde]::axi_lite_slave::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x58a3a766ccdb - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x58a3a7679eb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x58a3a76737a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x58a3a767cf42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x58a3a76efebf - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x7673ac4a5dfa - <unknown>
[INFO] [stdout]   20:     0x7673ac5393d4 - 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" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1", kill_on_drop: false }`
[INFO] [stdout] 2bcc631269651b1ea21e7e1fb745bcc8410b62e39a82d848140bef81fb40bed1
