[INFO] cloning repository https://github.com/WilliamVenner/null_fn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilliamVenner/null_fn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fnull_fn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fnull_fn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c86edc58e509259bf215c3d6a70bf08c6143bfc2
[INFO] testing WilliamVenner/null_fn against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fnull_fn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/WilliamVenner/null_fn
[INFO] finished tweaking git repo https://github.com/WilliamVenner/null_fn
[INFO] tweaked toml for git repo https://github.com/WilliamVenner/null_fn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WilliamVenner/null_fn on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/WilliamVenner/null_fn 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92d2899096826fe56ad5a60bb9a9193441a0bd41025c1e89bcb581eac32f823b
[INFO] running `Command { std: "docker" "start" "-a" "92d2899096826fe56ad5a60bb9a9193441a0bd41025c1e89bcb581eac32f823b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92d2899096826fe56ad5a60bb9a9193441a0bd41025c1e89bcb581eac32f823b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d2899096826fe56ad5a60bb9a9193441a0bd41025c1e89bcb581eac32f823b", kill_on_drop: false }`
[INFO] [stdout] 92d2899096826fe56ad5a60bb9a9193441a0bd41025c1e89bcb581eac32f823b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfac14b020d7ff7740e84e863fbcd6b9742645537b3692c0c3b5e00f6d2a0bc3
[INFO] running `Command { std: "docker" "start" "-a" "dfac14b020d7ff7740e84e863fbcd6b9742645537b3692c0c3b5e00f6d2a0bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling null_fn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "dfac14b020d7ff7740e84e863fbcd6b9742645537b3692c0c3b5e00f6d2a0bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfac14b020d7ff7740e84e863fbcd6b9742645537b3692c0c3b5e00f6d2a0bc3", kill_on_drop: false }`
[INFO] [stdout] dfac14b020d7ff7740e84e863fbcd6b9742645537b3692c0c3b5e00f6d2a0bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 802757d0c5c0ab376c795e8ad9e98641bfc56e4f71914d9bdc57a52e790d7930
[INFO] running `Command { std: "docker" "start" "-a" "802757d0c5c0ab376c795e8ad9e98641bfc56e4f71914d9bdc57a52e790d7930", kill_on_drop: false }`
[INFO] [stderr]    Compiling null_fn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "802757d0c5c0ab376c795e8ad9e98641bfc56e4f71914d9bdc57a52e790d7930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "802757d0c5c0ab376c795e8ad9e98641bfc56e4f71914d9bdc57a52e790d7930", kill_on_drop: false }`
[INFO] [stdout] 802757d0c5c0ab376c795e8ad9e98641bfc56e4f71914d9bdc57a52e790d7930
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44e6b4e5988a5268882d34bf57e572ce24ac39fcb1eec182c2cd9a4f996af09f
[INFO] running `Command { std: "docker" "start" "-a" "44e6b4e5988a5268882d34bf57e572ce24ac39fcb1eec182c2cd9a4f996af09f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/null_fn-5dedcbf2b17598d6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests null_fn
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... FAILED
[INFO] [stdout] test src/lib.rs - null_fn (line 19) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 11) stdout ----
[INFO] [stdout] error: expected expression, found `;`
[INFO] [stdout]   --> src/lib.rs:22:89
[INFO] [stdout]    |
[INFO] [stdout] 22 |         UTIL_PlayerByUserId = /* magically find the pointer to the function; sigscan? */;
[INFO] [stdout]    |                                                                                         ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `UTIL_PlayerByUserId` is defined multiple times
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = unsafe { std::mem::transmute::<*const (), _>(std:...
[INFO] [stdout]    | ----------------------------------------------------------------------------------------- previous definition of the value `UTIL_PlayerByUserId` here
[INFO] [stdout] ...
[INFO] [stdout] 16 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = std::ptr::null(); // works!
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `UTIL_PlayerByUserId` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UTIL_PlayerByUserId` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `null_fn` in this scope
[INFO] [stdout]   --> src/lib.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[null_fn]
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `null_fn` is imported here, but it is a crate, not an attribute
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate r#null_fn;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this attribute macro
[INFO] [stdout]    |
[INFO] [stdout] 11 + use null_fn::null_fn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `c_void` in this scope
[INFO] [stdout]   --> src/lib.rs:13:75
[INFO] [stdout]    |
[INFO] [stdout] 13 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = unsafe { std::mem::transmute::<*const (), _>(std:...
[INFO] [stdout]    |                                                                           ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 11 + use std::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 11 + use std::os::raw::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 11 + use core::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `c_void` in this scope
[INFO] [stdout]   --> src/lib.rs:16:75
[INFO] [stdout]    |
[INFO] [stdout] 16 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = std::ptr::null(); // works!
[INFO] [stdout]    |                                                                           ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 11 + use std::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 11 + use std::os::raw::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 11 + use core::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0428.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - null_fn (line 19) stdout ----
[INFO] [stdout] error: expected expression, found `;`
[INFO] [stdout]   --> src/lib.rs:30:89
[INFO] [stdout]    |
[INFO] [stdout] 30 |         UTIL_PlayerByUserId = /* magically find the pointer to the function; sigscan? */;
[INFO] [stdout]    |                                                                                         ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `UTIL_PlayerByUserId` is defined multiple times
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = unsafe { std::mem::transmute::<*const (), _>(std:...
[INFO] [stdout]    | ----------------------------------------------------------------------------------------- previous definition of the value `UTIL_PlayerByUserId` here
[INFO] [stdout] ...
[INFO] [stdout] 24 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = std::ptr::null(); // works!
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `UTIL_PlayerByUserId` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UTIL_PlayerByUserId` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `null_fn` in this scope
[INFO] [stdout]   --> src/lib.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[null_fn]
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `null_fn` is imported here, but it is a crate, not an attribute
[INFO] [stdout]   --> src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate r#null_fn;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this attribute macro
[INFO] [stdout]    |
[INFO] [stdout] 19 + use null_fn::null_fn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `c_void` in this scope
[INFO] [stdout]   --> src/lib.rs:21:75
[INFO] [stdout]    |
[INFO] [stdout] 21 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = unsafe { std::mem::transmute::<*const (), _>(std:...
[INFO] [stdout]    |                                                                           ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 + use std::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 19 + use std::os::raw::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 19 + use core::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `c_void` in this scope
[INFO] [stdout]   --> src/lib.rs:24:75
[INFO] [stdout]    |
[INFO] [stdout] 24 | static mut UTIL_PlayerByUserId: unsafe extern "C" fn(userid: i32) -> *mut c_void = std::ptr::null(); // works!
[INFO] [stdout]    |                                                                           ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 + use std::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 19 + use std::os::raw::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 19 + use core::ffi::c_void;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0428.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 11)
[INFO] [stdout]     src/lib.rs - null_fn (line 19)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "44e6b4e5988a5268882d34bf57e572ce24ac39fcb1eec182c2cd9a4f996af09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e6b4e5988a5268882d34bf57e572ce24ac39fcb1eec182c2cd9a4f996af09f", kill_on_drop: false }`
[INFO] [stdout] 44e6b4e5988a5268882d34bf57e572ce24ac39fcb1eec182c2cd9a4f996af09f
