[INFO] fetching crate wang_utils_json 0.6.3...
[INFO] testing wang_utils_json-0.6.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate wang_utils_json 0.6.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wang_utils_json 0.6.3
[INFO] finished tweaking crates.io crate wang_utils_json 0.6.3
[INFO] tweaked toml for crates.io crate wang_utils_json 0.6.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wang_utils_json 0.6.3 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 wang_utils_json 0.6.3 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-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e
[INFO] running `Command { std: "docker" "start" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", 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" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e" "/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" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", 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" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling wang_utils_json v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `Command { std: "docker" "inspect" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", 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" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling wang_utils_json v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", 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" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/wang_utils_json/1e3c2a9c584330f9/out/wang_utils_json-1e3c2a9c584330f9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_write_json_to_file ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_write_json_to_file stdout ----
[INFO] [stdout] Object {
[INFO] [stdout]     "pwd": String("user-pwd"),
[INFO] [stdout]     "user": String("123312"),
[INFO] [stdout] }
[INFO] [stdout] Error: Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <anyhow::Error as core::convert::From<core::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.98/src/backtrace.rs:27:14
[INFO] [stdout]    1: <core::result::Result<(), anyhow::Error> as core::ops::try_trait::FromResidual<core::result::Result<!, core::io::error::Error>>>::from_residual
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2190:27
[INFO] [stdout]    2: wang_utils_json::write_pretty_json_to_file::<&str, serde_json::value::Value>
[INFO] [stdout]              at ./src/lib.rs:42:5
[INFO] [stdout]    3: wang_utils_json::tests::test_write_json_to_file
[INFO] [stdout]              at ./src/lib.rs:58:9
[INFO] [stdout]    4: wang_utils_json::tests::test_write_json_to_file::{closure#0}
[INFO] [stdout]              at ./src/lib.rs:52:37
[INFO] [stdout]    5: <wang_utils_json::tests::test_write_json_to_file::{closure#0} as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    6: <fn() -> core::result::Result<(), alloc::string::String> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    7: test::__rust_begin_short_backtrace::<core::result::Result<(), alloc::string::String>, fn() -> core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/test/src/lib.rs:701:18
[INFO] [stdout]    8: test::run_test_in_process::{closure#0}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/test/src/lib.rs:724:74
[INFO] [stdout]    9: <core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   10: std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stdout]   11: std::panicking::catch_unwind::<core::result::Result<(), alloc::string::String>, core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stdout]   12: std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stdout]   13: test::run_test_in_process
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/test/src/lib.rs:724:27
[INFO] [stdout]   14: test::run_test::{closure#0}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/test/src/lib.rs:645:43
[INFO] [stdout]   15: test::run_test::{closure#1}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/test/src/lib.rs:675:41
[INFO] [stdout]   16: std::sys::backtrace::__rust_begin_short_backtrace::<test::run_test::{closure#1}, ()>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   17: std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   18: <core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   19: std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stdout]   20: std::panicking::catch_unwind::<(), core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stdout]   21: std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stdout]   22: std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   23: <std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24: <alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output = ()> + core::marker::Send> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/alloc/src/boxed.rs:2314:9
[INFO] [stdout]   25: <std::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]              at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   26: <unknown>
[INFO] [stdout]   27: clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_write_json_to_file
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e", kill_on_drop: false }`
[INFO] [stdout] de6fac838b88c01706224b293ae8fa7d0c373fc49a8729f7c188768b8af1565e
