[INFO] fetching crate ngnk 0.2.3...
[INFO] testing ngnk-0.2.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate ngnk 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ngnk 0.2.3
[INFO] finished tweaking crates.io crate ngnk 0.2.3
[INFO] tweaked toml for crates.io crate ngnk 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ngnk 0.2.3 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.65.1 (available: v0.72.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 597d5d1793c4e80e767660721c8a59d7887657c7458513556fe4f15a4030344f
[INFO] running `Command { std: "docker" "start" "-a" "597d5d1793c4e80e767660721c8a59d7887657c7458513556fe4f15a4030344f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "597d5d1793c4e80e767660721c8a59d7887657c7458513556fe4f15a4030344f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "597d5d1793c4e80e767660721c8a59d7887657c7458513556fe4f15a4030344f", kill_on_drop: false }`
[INFO] [stdout] 597d5d1793c4e80e767660721c8a59d7887657c7458513556fe4f15a4030344f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32222bf468b01becefad99263f4747939c8567231c3da14b7359d57d55da90bb
[INFO] running `Command { std: "docker" "start" "-a" "32222bf468b01becefad99263f4747939c8567231c3da14b7359d57d55da90bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling ngnk v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stdout]   --> src/lib.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a);
[INFO] [stdout]    |                           ------ ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stdout]    = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stdout]    = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]    = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.30s
[INFO] running `Command { std: "docker" "inspect" "32222bf468b01becefad99263f4747939c8567231c3da14b7359d57d55da90bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32222bf468b01becefad99263f4747939c8567231c3da14b7359d57d55da90bb", kill_on_drop: false }`
[INFO] [stdout] 32222bf468b01becefad99263f4747939c8567231c3da14b7359d57d55da90bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 098e1288c39e38afb2ed86286f3b0c6288df0d2c42ae5d0d4b1c2db1cd7153ac
[INFO] running `Command { std: "docker" "start" "-a" "098e1288c39e38afb2ed86286f3b0c6288df0d2c42ae5d0d4b1c2db1cd7153ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling ngnk v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stdout]   --> src/lib.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a);
[INFO] [stdout]    |                           ------ ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stdout]    = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stdout]    = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]    = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stdout]   --> src/lib.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a);
[INFO] [stdout]    |                           ------ ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stdout]    = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stdout]    = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]    = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "098e1288c39e38afb2ed86286f3b0c6288df0d2c42ae5d0d4b1c2db1cd7153ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098e1288c39e38afb2ed86286f3b0c6288df0d2c42ae5d0d4b1c2db1cd7153ac", kill_on_drop: false }`
[INFO] [stdout] 098e1288c39e38afb2ed86286f3b0c6288df0d2c42ae5d0d4b1c2db1cd7153ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28a53a4cb10ef049bad0a86f3c9e0256696b00dcc619ae677d55673023289676
[INFO] running `Command { std: "docker" "start" "-a" "28a53a4cb10ef049bad0a86f3c9e0256696b00dcc619ae677d55673023289676", kill_on_drop: false }`
[INFO] [stderr] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stderr]   --> src/lib.rs:32:34
[INFO] [stderr]    |
[INFO] [stderr] 32 |     unsafe{ let b:*mut i8=vec![].as_mut_ptr();raw::CK(b,a);
[INFO] [stderr]    |                           ------ ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]    |
[INFO] [stderr]    = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]    = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stderr]    = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stderr]    = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stderr]    = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ngnk` (lib) generated 1 warning
[INFO] [stderr] warning: `ngnk` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ngnk-c00c13758fc01d33)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/ngnk-c00c13758fc01d33` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "28a53a4cb10ef049bad0a86f3c9e0256696b00dcc619ae677d55673023289676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a53a4cb10ef049bad0a86f3c9e0256696b00dcc619ae677d55673023289676", kill_on_drop: false }`
[INFO] [stdout] 28a53a4cb10ef049bad0a86f3c9e0256696b00dcc619ae677d55673023289676
