[INFO] fetching crate json_utils_2024 0.5.2...
[INFO] testing json_utils_2024-0.5.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate json_utils_2024 0.5.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate json_utils_2024 0.5.2
[INFO] finished tweaking crates.io crate json_utils_2024 0.5.2
[INFO] tweaked toml for crates.io crate json_utils_2024 0.5.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_utils_2024 0.5.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0633ec443bea9dccdecc4f65fe3a42425f2cea17ad064de5677e73598192994
[INFO] running `Command { std: "docker" "start" "-a" "b0633ec443bea9dccdecc4f65fe3a42425f2cea17ad064de5677e73598192994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0633ec443bea9dccdecc4f65fe3a42425f2cea17ad064de5677e73598192994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0633ec443bea9dccdecc4f65fe3a42425f2cea17ad064de5677e73598192994", kill_on_drop: false }`
[INFO] [stdout] b0633ec443bea9dccdecc4f65fe3a42425f2cea17ad064de5677e73598192994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2710b65d5c796b2ea277c3a55c7dddce4b093e83d612b4e5ae6b56bed34ba1f
[INFO] running `Command { std: "docker" "start" "-a" "c2710b65d5c796b2ea277c3a55c7dddce4b093e83d612b4e5ae6b56bed34ba1f", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/deps/liblibjsonutils-ba0b11c68eb1a2d5.rlib
[INFO] [stderr]   |
[INFO] [stderr]   = note: the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)` has the same output filename as the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/liblibjsonutils.rlib
[INFO] [stderr]   |
[INFO] [stderr]   = note: the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)` has the same output filename as the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling json_utils_2024 v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.85s
[INFO] running `Command { std: "docker" "inspect" "c2710b65d5c796b2ea277c3a55c7dddce4b093e83d612b4e5ae6b56bed34ba1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2710b65d5c796b2ea277c3a55c7dddce4b093e83d612b4e5ae6b56bed34ba1f", kill_on_drop: false }`
[INFO] [stdout] c2710b65d5c796b2ea277c3a55c7dddce4b093e83d612b4e5ae6b56bed34ba1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c91f79fdc264a50b6664076d527898053446b5f981948d5494e2aad5c7c2e95
[INFO] running `Command { std: "docker" "start" "-a" "8c91f79fdc264a50b6664076d527898053446b5f981948d5494e2aad5c7c2e95", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/deps/liblibjsonutils-ba0b11c68eb1a2d5.rlib
[INFO] [stderr]   |
[INFO] [stderr]   = note: the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)` has the same output filename as the lib target `libjsonutils` in package `json_utils_2024 v0.5.2 (/opt/rustwide/workdir)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] 
[INFO] [stderr] thread 'main' (1) panicked at src/tools/cargo/src/cargo/core/compiler/fingerprint/mod.rs:1267:13:
[INFO] [stderr] assertion failed: mtimes.insert(output.clone(), mtime).is_none()
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5696048dd9fb - std[31e582c13f4e914f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5696048dd9fb - std[31e582c13f4e914f]::backtrace_rs::backtrace::trace_unsynchronized::<std[31e582c13f4e914f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5696048dd9fb - std[31e582c13f4e914f]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x5696048dd9fb - <<std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x5696043d8ffa - <core[fa0eadad68403074]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x5696043d8ffa - core[fa0eadad68403074]::fmt::write
[INFO] [stderr]    6:     0x5696048ea856 - std[31e582c13f4e914f]::io::default_write_fmt::<std[31e582c13f4e914f]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x5696048ea856 - <std[31e582c13f4e914f]::sys::stdio::unix::Stderr as std[31e582c13f4e914f]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x5696048b3f70 - <std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x5696048b3f70 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x5696048d1ab6 - std[31e582c13f4e914f]::panicking::default_hook
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x5696048d1d4b - std[31e582c13f4e914f]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:825:13
[INFO] [stderr]   12:     0x5696048b405a - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:691:13
[INFO] [stderr]   13:     0x5696048a8629 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::<std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   14:     0x5696048b58ed - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:689:5
[INFO] [stderr]   15:     0x5696043d975c - core[fa0eadad68403074]::panicking::panic_fmt
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panicking.rs:80:14
[INFO] [stderr]   16:     0x5696043d9722 - core[fa0eadad68403074]::panicking::panic
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panicking.rs:150:5
[INFO] [stderr]   17:     0x569603e40897 - <cargo[dac780f3af4b59c5]::core::compiler::fingerprint::Fingerprint>::check_filesystem
[INFO] [stderr]   18:     0x56960408efa2 - cargo[dac780f3af4b59c5]::core::compiler::fingerprint::calculate
[INFO] [stderr]   19:     0x569604084b39 - cargo[dac780f3af4b59c5]::core::compiler::fingerprint::prepare_target
[INFO] [stderr]   20:     0x569603ffcbc3 - cargo[dac780f3af4b59c5]::core::compiler::compile
[INFO] [stderr]   21:     0x569603ffcb13 - cargo[dac780f3af4b59c5]::core::compiler::compile
[INFO] [stderr]   22:     0x569603dcf598 - <cargo[dac780f3af4b59c5]::core::compiler::build_runner::BuildRunner>::compile
[INFO] [stderr]   23:     0x569603f3e2f0 - cargo[dac780f3af4b59c5]::ops::cargo_compile::compile_ws
[INFO] [stderr]   24:     0x569603f42cb1 - cargo[dac780f3af4b59c5]::ops::cargo_compile::compile_with_exec
[INFO] [stderr]   25:     0x569603f4a0ab - cargo[dac780f3af4b59c5]::ops::cargo_compile::compile
[INFO] [stderr]   26:     0x569603f19db1 - cargo[dac780f3af4b59c5]::ops::cargo_test::run_tests
[INFO] [stderr]   27:     0x569604308907 - cargo[3ab226bf18cdb067]::commands::test::exec
[INFO] [stderr]   28:     0x5696042aadaa - <cargo[3ab226bf18cdb067]::cli::Exec>::exec
[INFO] [stderr]   29:     0x5696042a8556 - cargo[3ab226bf18cdb067]::main
[INFO] [stderr]   30:     0x569604282143 - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]   31:     0x5696042971c9 - std[31e582c13f4e914f]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]   32:     0x5696048cffa4 - <&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:287:21
[INFO] [stderr]   33:     0x5696048cffa4 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stderr]   34:     0x5696048cffa4 - std[31e582c13f4e914f]::panicking::catch_unwind::<i32, &dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stderr]   35:     0x5696048cffa4 - std[31e582c13f4e914f]::panic::catch_unwind::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stderr]   36:     0x5696048cffa4 - std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:175:24
[INFO] [stderr]   37:     0x5696048cffa4 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stderr]   38:     0x5696048cffa4 - std[31e582c13f4e914f]::panicking::catch_unwind::<isize, std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stderr]   39:     0x5696048cffa4 - std[31e582c13f4e914f]::panic::catch_unwind::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stderr]   40:     0x5696048cffa4 - std[31e582c13f4e914f]::rt::lang_start_internal
[INFO] [stderr]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:171:5
[INFO] [stderr]   41:     0x569604351c75 - main
[INFO] [stderr]   42:     0x77b36f4431ca - <unknown>
[INFO] [stderr]   43:     0x77b36f44328b - __libc_start_main
[INFO] [stderr]   44:     0x569603826569 - <unknown>
[INFO] [stderr]   45:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "8c91f79fdc264a50b6664076d527898053446b5f981948d5494e2aad5c7c2e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c91f79fdc264a50b6664076d527898053446b5f981948d5494e2aad5c7c2e95", kill_on_drop: false }`
[INFO] [stdout] 8c91f79fdc264a50b6664076d527898053446b5f981948d5494e2aad5c7c2e95