[INFO] fetching crate hi-ffi 0.6.0...
[INFO] testing hi-ffi-0.6.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065
[INFO] extracting crate hi-ffi 0.6.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate hi-ffi 0.6.0
[INFO] finished tweaking crates.io crate hi-ffi 0.6.0
[INFO] tweaked toml for crates.io crate hi-ffi 0.6.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hi-ffi 0.6.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hi-ffi 0.6.0 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fafa7734668ad7cd0cd8cf3b318ed61f5ee5058b9b569368a4d91447e5e34030
[INFO] running `Command { std: "docker" "start" "-a" "fafa7734668ad7cd0cd8cf3b318ed61f5ee5058b9b569368a4d91447e5e34030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fafa7734668ad7cd0cd8cf3b318ed61f5ee5058b9b569368a4d91447e5e34030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fafa7734668ad7cd0cd8cf3b318ed61f5ee5058b9b569368a4d91447e5e34030", kill_on_drop: false }`
[INFO] [stdout] fafa7734668ad7cd0cd8cf3b318ed61f5ee5058b9b569368a4d91447e5e34030
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cbbe417e48e682e6328a47615624f916bcb156bb00044d40bb1b35ba07947de
[INFO] running `Command { std: "docker" "start" "-a" "0cbbe417e48e682e6328a47615624f916bcb156bb00044d40bb1b35ba07947de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling hi-ffi v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `prepend_each_line_with_n_tabs` is never used
[INFO] [stdout]    --> src/lib.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn prepend_each_line_with_n_tabs(s: &str, n: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `discriminant` are never read
[INFO] [stdout]   --> src/wrapper/enum_wrapper.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumVariant {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 13 |     pub(crate) name: Ident,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 14 |     pub(crate) discriminant: Option<String>,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnumVariant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "0cbbe417e48e682e6328a47615624f916bcb156bb00044d40bb1b35ba07947de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cbbe417e48e682e6328a47615624f916bcb156bb00044d40bb1b35ba07947de", kill_on_drop: false }`
[INFO] [stdout] 0cbbe417e48e682e6328a47615624f916bcb156bb00044d40bb1b35ba07947de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee96dea96e2cdadfd4ab01430c61256faeaf853c0fa93867736d2fac4c47e443
[INFO] running `Command { std: "docker" "start" "-a" "ee96dea96e2cdadfd4ab01430c61256faeaf853c0fa93867736d2fac4c47e443", kill_on_drop: false }`
[INFO] [stderr]    Compiling hi-ffi v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `prepend_each_line_with_n_tabs` is never used
[INFO] [stdout]    --> src/lib.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn prepend_each_line_with_n_tabs(s: &str, n: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `discriminant` are never read
[INFO] [stdout]   --> src/wrapper/enum_wrapper.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumVariant {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 13 |     pub(crate) name: Ident,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 14 |     pub(crate) discriminant: Option<String>,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnumVariant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prepend_each_line_with_n_tabs` is never used
[INFO] [stdout]    --> src/lib.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn prepend_each_line_with_n_tabs(s: &str, n: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `discriminant` are never read
[INFO] [stdout]   --> src/wrapper/enum_wrapper.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumVariant {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 13 |     pub(crate) name: Ident,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 14 |     pub(crate) discriminant: Option<String>,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnumVariant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "ee96dea96e2cdadfd4ab01430c61256faeaf853c0fa93867736d2fac4c47e443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee96dea96e2cdadfd4ab01430c61256faeaf853c0fa93867736d2fac4c47e443", kill_on_drop: false }`
[INFO] [stdout] ee96dea96e2cdadfd4ab01430c61256faeaf853c0fa93867736d2fac4c47e443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 570f854aea17ea2d67f1ffe13f1eceab9cb209158893272c97967cad7087679c
[INFO] running `Command { std: "docker" "start" "-a" "570f854aea17ea2d67f1ffe13f1eceab9cb209158893272c97967cad7087679c", kill_on_drop: false }`
[INFO] [stderr] warning: function `prepend_each_line_with_n_tabs` is never used
[INFO] [stderr]    --> src/lib.rs:199:4
[INFO] [stderr]     |
[INFO] [stderr] 199 | fn prepend_each_line_with_n_tabs(s: &str, n: usize) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `discriminant` are never read
[INFO] [stderr]   --> src/wrapper/enum_wrapper.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct EnumVariant {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 13 |     pub(crate) name: Ident,
[INFO] [stderr]    |                ^^^^
[INFO] [stderr] 14 |     pub(crate) discriminant: Option<String>,
[INFO] [stderr]    |                ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `EnumVariant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `hi-ffi` (lib) generated 2 warnings
[INFO] [stderr] warning: `hi-ffi` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hi_ffi-2e7478ad4ba463dd)
[INFO] [stdout] 
[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] [stderr]    Doc-tests hi_ffi
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/../README.md - (line 240) ... ignored
[INFO] [stdout] test src/../README.md - (line 34) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/../README.md - (line 34) stdout ----
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/../README.md:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[ffi]
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Unable to create rust directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/../README.md:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[ffi]
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Unable to create rust directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/../README.md:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | #[ffi]
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Unable to create rust directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/../README.md:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[ffi]
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Unable to create rust directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> src/../README.md:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | #[ffi]
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Unable to create rust directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/../README.md - (line 34)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.19s; merged doctests compilation took 0.09s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "570f854aea17ea2d67f1ffe13f1eceab9cb209158893272c97967cad7087679c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "570f854aea17ea2d67f1ffe13f1eceab9cb209158893272c97967cad7087679c", kill_on_drop: false }`
[INFO] [stdout] 570f854aea17ea2d67f1ffe13f1eceab9cb209158893272c97967cad7087679c
