[INFO] fetching crate tg-rcore-tutorial-user 0.4.10...
[INFO] testing tg-rcore-tutorial-user-0.4.10 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate tg-rcore-tutorial-user 0.4.10 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tg-rcore-tutorial-user 0.4.10
[INFO] finished tweaking crates.io crate tg-rcore-tutorial-user 0.4.10
[INFO] tweaked toml for crates.io crate tg-rcore-tutorial-user 0.4.10 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-rcore-tutorial-user 0.4.10 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tg-rcore-tutorial-user 0.4.10 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b1dd216af211b35216a76b3d5dcb803e2e9006947e0f0f9a8918f46e3bee606
[INFO] running `Command { std: "docker" "start" "-a" "9b1dd216af211b35216a76b3d5dcb803e2e9006947e0f0f9a8918f46e3bee606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1dd216af211b35216a76b3d5dcb803e2e9006947e0f0f9a8918f46e3bee606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1dd216af211b35216a76b3d5dcb803e2e9006947e0f0f9a8918f46e3bee606", kill_on_drop: false }`
[INFO] [stdout] 9b1dd216af211b35216a76b3d5dcb803e2e9006947e0f0f9a8918f46e3bee606
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a8f4b9031158e973dd980ac59257f027e5ccdabc9412cfab8b8309a9b344545
[INFO] running `Command { std: "docker" "start" "-a" "2a8f4b9031158e973dd980ac59257f027e5ccdabc9412cfab8b8309a9b344545", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling numeric-enum-macro v0.2.0
[INFO] [stderr]    Compiling tg-rcore-tutorial-syscall v0.4.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling tg-rcore-tutorial-user v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling customizable-buddy v0.0.4
[INFO] [stderr]    Compiling tg-rcore-tutorial-signal-defs v0.4.8
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling tg-rcore-tutorial-console v0.4.8
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/test_condvar.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     A = 1;
[INFO] [stdout]    |     ^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/bin/test_condvar.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | unsafe fn first() -> isize {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `core::ptr::const_ptr::<impl *const T>::read_volatile` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/test_condvar.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 |     while (&raw const A).read_volatile() == 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/bin/test_condvar.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | unsafe fn second() -> isize {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `core::ptr::const_ptr::<impl *const T>::read_volatile` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/test_condvar.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let a = (&raw const A).read_volatile();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `core::ptr::const_ptr::<impl *const T>::read_volatile` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/test_condvar.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let a = (&raw const A).read_volatile();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcpJowRZ/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcpJowRZ/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/12forktest-f98d5697ca936948" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustc1vNMZF/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc1vNMZF/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/sbrk-b8e9f7c30d5bcd59" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "12forktest") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "sbrk") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustc0YqAv2/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc0YqAv2/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_condvar-42ed1617098d4f77" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcp2KRUO/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcp2KRUO/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/fork_exit-c0895d90b997d450" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcXBHRbc/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcXBHRbc/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch6_file2-b2c424e45fe815b1" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustckEPYjl/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustckEPYjl/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch4_unmap2-2662c8892cdb6a26" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "fork_exit") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch4_unmap2") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "test_condvar") due to 1 previous error; 4 warnings emitted
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch6_file2") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcnNnYte/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcnNnYte/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/05write_a-bc08ccbda8320e8a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcHjHwqn/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-da1a4ec6c63f0375,libtg_rcore_tutorial_syscall-e72e044839b0f268,libtg_rcore_tutorial_signal_defs-9e2896d29983ea43,libnumeric_enum_macro-cc155e67242600de,libbitflags-e9eea2028f9becb3,libtg_rcore_tutorial_console-4ae126f7a2899876,libspin-8367eaa6ccc41342,liblock_api-ec0a520dc28c2410,libscopeguard-e8cce494a631202a,liblog-635f30ca537115c6,libcustomizable_buddy-52b6a22e76272ee5}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcHjHwqn/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch7b_usertest-67ed5a1855007bc6" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-da1a4ec6c63f0375.user_lib.c91dde569ed2283e-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-da1a4ec6c63f0375.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "05write_a") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch7b_usertest") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2a8f4b9031158e973dd980ac59257f027e5ccdabc9412cfab8b8309a9b344545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8f4b9031158e973dd980ac59257f027e5ccdabc9412cfab8b8309a9b344545", kill_on_drop: false }`
[INFO] [stdout] 2a8f4b9031158e973dd980ac59257f027e5ccdabc9412cfab8b8309a9b344545
