[INFO] fetching crate extern 0.0.0...
[INFO] testing extern-0.0.0 against try#311784882baa42a9638298cb325fa01a062c9d0f+cargoflags=-Zbuild-dir-new-layout for pr-149852
[INFO] extracting crate extern 0.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate extern 0.0.0
[INFO] finished tweaking crates.io crate extern 0.0.0
[INFO] tweaked toml for crates.io crate extern 0.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate extern 0.0.0 on toolchain 311784882baa42a9638298cb325fa01a062c9d0f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "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" "+311784882baa42a9638298cb325fa01a062c9d0f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25c3ba87034d99748ab74684d07acf9705f868e2c41a066fc025f77e3c7de38c
[INFO] running `Command { std: "docker" "start" "-a" "25c3ba87034d99748ab74684d07acf9705f868e2c41a066fc025f77e3c7de38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25c3ba87034d99748ab74684d07acf9705f868e2c41a066fc025f77e3c7de38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c3ba87034d99748ab74684d07acf9705f868e2c41a066fc025f77e3c7de38c", kill_on_drop: false }`
[INFO] [stdout] 25c3ba87034d99748ab74684d07acf9705f868e2c41a066fc025f77e3c7de38c
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] e35b2e71ac4018e5feae5cbd0fd0627696e254af4baa41032ff443e3c8c73848
[INFO] running `Command { std: "docker" "start" "-a" "e35b2e71ac4018e5feae5cbd0fd0627696e254af4baa41032ff443e3c8c73848", kill_on_drop: false }`
[INFO] [stderr]    Compiling extern v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern {}
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "e35b2e71ac4018e5feae5cbd0fd0627696e254af4baa41032ff443e3c8c73848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35b2e71ac4018e5feae5cbd0fd0627696e254af4baa41032ff443e3c8c73848", kill_on_drop: false }`
[INFO] [stdout] e35b2e71ac4018e5feae5cbd0fd0627696e254af4baa41032ff443e3c8c73848
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] de23ccdd52728f53752faf101f36b1aa42bc438a2530d546b84abbd6b832f8e1
[INFO] running `Command { std: "docker" "start" "-a" "de23ccdd52728f53752faf101f36b1aa42bc438a2530d546b84abbd6b832f8e1", kill_on_drop: false }`
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern {}
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling extern v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern {}
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "de23ccdd52728f53752faf101f36b1aa42bc438a2530d546b84abbd6b832f8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de23ccdd52728f53752faf101f36b1aa42bc438a2530d546b84abbd6b832f8e1", kill_on_drop: false }`
[INFO] [stdout] de23ccdd52728f53752faf101f36b1aa42bc438a2530d546b84abbd6b832f8e1
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 612ea586f89dc28210359299355f37bdc4a1d5424c6b8e4c915b18cc4e3a97b1
[INFO] running `Command { std: "docker" "start" "-a" "612ea586f89dc28210359299355f37bdc4a1d5424c6b8e4c915b18cc4e3a97b1", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern {}
[INFO] [stderr]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` (lib) generated 1 warning (run `cargo fix --lib -p extern` to apply 1 suggestion)
[INFO] [stderr] warning: `extern` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/extern/8f5512e237f77dd7/deps/extern-8f5512e237f77dd7)
[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 extern
[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] running `Command { std: "docker" "inspect" "612ea586f89dc28210359299355f37bdc4a1d5424c6b8e4c915b18cc4e3a97b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612ea586f89dc28210359299355f37bdc4a1d5424c6b8e4c915b18cc4e3a97b1", kill_on_drop: false }`
[INFO] [stdout] 612ea586f89dc28210359299355f37bdc4a1d5424c6b8e4c915b18cc4e3a97b1