[INFO] fetching crate grep_cdylib 0.1.3...
[INFO] testing grep_cdylib-0.1.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate grep_cdylib 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate grep_cdylib 0.1.3
[INFO] finished tweaking crates.io crate grep_cdylib 0.1.3
[INFO] tweaked toml for crates.io crate grep_cdylib 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grep_cdylib 0.1.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grep_cdylib 0.1.3 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0b2ed8b03cf51f294eae4d3add9ac23808f93d0bae65ad8d2a948293e0bdb52
[INFO] running `Command { std: "docker" "start" "-a" "e0b2ed8b03cf51f294eae4d3add9ac23808f93d0bae65ad8d2a948293e0bdb52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0b2ed8b03cf51f294eae4d3add9ac23808f93d0bae65ad8d2a948293e0bdb52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0b2ed8b03cf51f294eae4d3add9ac23808f93d0bae65ad8d2a948293e0bdb52", kill_on_drop: false }`
[INFO] [stdout] e0b2ed8b03cf51f294eae4d3add9ac23808f93d0bae65ad8d2a948293e0bdb52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae6b8127b536064e4e6b4b524504298184d461610b62772f546e27bfaea5c849
[INFO] running `Command { std: "docker" "start" "-a" "ae6b8127b536064e4e6b4b524504298184d461610b62772f546e27bfaea5c849", kill_on_drop: false }`
[INFO] [stderr]    Compiling grep_cdylib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "ae6b8127b536064e4e6b4b524504298184d461610b62772f546e27bfaea5c849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6b8127b536064e4e6b4b524504298184d461610b62772f546e27bfaea5c849", kill_on_drop: false }`
[INFO] [stdout] ae6b8127b536064e4e6b4b524504298184d461610b62772f546e27bfaea5c849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f559914db228049fd6acf28e0802ea96325ab0552a45185ad2b1f979bd15bd65
[INFO] running `Command { std: "docker" "start" "-a" "f559914db228049fd6acf28e0802ea96325ab0552a45185ad2b1f979bd15bd65", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling grep_cdylib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]   --> examples/grep_extern/main.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | mod lib;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: lib.rs is the root of this crate's library target
[INFO] [stdout]    = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]    = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Ok`, `BufferTooSmall`, and `End` are never constructed
[INFO] [stdout]   --> examples/grep_extern/interface.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum GetStrResult {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 10 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     BufferTooSmall,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lib` is never read
[INFO] [stdout]  --> examples/grep_extern/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Lib {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 7 |     pub lib: Arc<Library>,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Lib` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "f559914db228049fd6acf28e0802ea96325ab0552a45185ad2b1f979bd15bd65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f559914db228049fd6acf28e0802ea96325ab0552a45185ad2b1f979bd15bd65", kill_on_drop: false }`
[INFO] [stdout] f559914db228049fd6acf28e0802ea96325ab0552a45185ad2b1f979bd15bd65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ba4dcd2930dfdc32baf4cd82128c409620dc551f28f04069859b257e599e9b5
[INFO] running `Command { std: "docker" "start" "-a" "1ba4dcd2930dfdc32baf4cd82128c409620dc551f28f04069859b257e599e9b5", kill_on_drop: false }`
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]   --> examples/grep_extern/main.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | mod lib;
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: lib.rs is the root of this crate's library target
[INFO] [stderr]    = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]    = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Ok`, `BufferTooSmall`, and `End` are never constructed
[INFO] [stderr]   --> examples/grep_extern/interface.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub enum GetStrResult {
[INFO] [stderr]    |          ------------ variants in this enum
[INFO] [stderr] 10 |     Ok,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 11 |     BufferTooSmall,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 12 |     End,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `lib` is never read
[INFO] [stderr]  --> examples/grep_extern/lib.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Lib {
[INFO] [stderr]   |            --- field in this struct
[INFO] [stderr] 7 |     pub lib: Arc<Library>,
[INFO] [stderr]   |         ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Lib` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `grep_cdylib` (example "grep_extern") generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grep_cdylib-da150b0956ef8836)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1ba4dcd2930dfdc32baf4cd82128c409620dc551f28f04069859b257e599e9b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba4dcd2930dfdc32baf4cd82128c409620dc551f28f04069859b257e599e9b5", kill_on_drop: false }`
[INFO] [stdout] 1ba4dcd2930dfdc32baf4cd82128c409620dc551f28f04069859b257e599e9b5