[INFO] fetching crate todo_cli_rs 0.1.1...
[INFO] testing todo_cli_rs-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate todo_cli_rs 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate todo_cli_rs 0.1.1
[INFO] finished tweaking crates.io crate todo_cli_rs 0.1.1
[INFO] tweaked toml for crates.io crate todo_cli_rs 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate todo_cli_rs 0.1.1 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 todo_cli_rs 0.1.1 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-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549
[INFO] running `Command { std: "docker" "start" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", 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" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549" "/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" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", 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" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling todo_cli_rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", 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" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling todo_cli_rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", 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" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/todo_cli_rs/b13d20432b9b46f7/out/todo_cli_rs-b13d20432b9b46f7)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_empty_todo ... ok
[INFO] [stdout] test tests::test_view_tasks_empty ... ok
[INFO] [stdout] test tests::test_todo_functionality ... FAILED
[INFO] [stdout] test tests::test_remove_task_invalid_index ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_todo_functionality stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_todo_functionality' (190) panicked at src/todo.rs:35:29:
[INFO] [stdout] Failed to save tasks: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x557e2ce10091 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x557e2ce2405a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x557e2ce1431c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x557e2cdec416 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x557e2ce08729 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x557e2cda2980 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x557e2ce088e2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x557e2cdec4c2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x557e2cde51d9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x557e2cded0cd - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x557e2ce2478c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x557e2ce24562 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x557e2cd94826 - <todo_cli_rs[30b10ab5cd269d14]::todo::Todo>::add_task
[INFO] [stdout]   13:     0x557e2cd94dd8 - <todo_cli_rs[30b10ab5cd269d14]::tests::test_todo_functionality::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x557e2cd95dcb - 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:     0x557e2cda2fa5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x557e2cd9c894 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x557e2cda6032 - <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:     0x557e2ce0f8ef - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x758a0be7adfa - <unknown>
[INFO] [stdout]   20:     0x758a0bf0e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_remove_task_invalid_index stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_remove_task_invalid_index' (189) panicked at src/todo.rs:35:29:
[INFO] [stdout] Failed to save tasks: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x557e2ce10091 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x557e2ce2405a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x557e2ce1431c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x557e2cdec416 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x557e2ce08729 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x557e2cda2980 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x557e2ce088e2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x557e2cdec4c2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x557e2cde51d9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x557e2cded0cd - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x557e2ce2478c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x557e2ce24562 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x557e2cd94826 - <todo_cli_rs[30b10ab5cd269d14]::todo::Todo>::add_task
[INFO] [stdout]   13:     0x557e2cd95b76 - <todo_cli_rs[30b10ab5cd269d14]::tests::test_remove_task_invalid_index::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x557e2cd95dcb - 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:     0x557e2cda2fa5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x557e2cd9c894 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x557e2cda6032 - <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:     0x557e2ce0f8ef - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x758a0be7adfa - <unknown>
[INFO] [stdout]   20:     0x758a0bf0e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_remove_task_invalid_index
[INFO] [stdout]     tests::test_todo_functionality
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549", kill_on_drop: false }`
[INFO] [stdout] f2ff616a1ae50705ccc3bef49b7b1e2dd5eda89f0446dbee3f197b98d38a9549
