[INFO] fetching crate is_empty_derive 0.1.0...
[INFO] testing is_empty_derive-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate is_empty_derive 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate is_empty_derive 0.1.0
[INFO] finished tweaking crates.io crate is_empty_derive 0.1.0
[INFO] tweaked toml for crates.io crate is_empty_derive 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate is_empty_derive 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e56fb16d6b73885d1aafff888c6bd5236b90c38ca1a590237ea3d9f3328cd816
[INFO] running `Command { std: "docker" "start" "-a" "e56fb16d6b73885d1aafff888c6bd5236b90c38ca1a590237ea3d9f3328cd816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e56fb16d6b73885d1aafff888c6bd5236b90c38ca1a590237ea3d9f3328cd816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56fb16d6b73885d1aafff888c6bd5236b90c38ca1a590237ea3d9f3328cd816", kill_on_drop: false }`
[INFO] [stdout] e56fb16d6b73885d1aafff888c6bd5236b90c38ca1a590237ea3d9f3328cd816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c67c2a5b6950dabcd3187db998d62c7eb7a8f3a1d7b6633fb08c09d8cf3410e3
[INFO] running `Command { std: "docker" "start" "-a" "c67c2a5b6950dabcd3187db998d62c7eb7a8f3a1d7b6633fb08c09d8cf3410e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling is_empty_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "c67c2a5b6950dabcd3187db998d62c7eb7a8f3a1d7b6633fb08c09d8cf3410e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67c2a5b6950dabcd3187db998d62c7eb7a8f3a1d7b6633fb08c09d8cf3410e3", kill_on_drop: false }`
[INFO] [stdout] c67c2a5b6950dabcd3187db998d62c7eb7a8f3a1d7b6633fb08c09d8cf3410e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8a5d5fa311f1ae2513f6406466fc46d138c8d10fcde0b4b3e04daa7873ed37a
[INFO] running `Command { std: "docker" "start" "-a" "f8a5d5fa311f1ae2513f6406466fc46d138c8d10fcde0b4b3e04daa7873ed37a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling is_empty_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]   --> tests/test_expand.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct A {
[INFO] [stdout]    |        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IsEmpty` is never used
[INFO] [stdout]  --> tests/test_expand.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub trait IsEmpty {
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "f8a5d5fa311f1ae2513f6406466fc46d138c8d10fcde0b4b3e04daa7873ed37a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a5d5fa311f1ae2513f6406466fc46d138c8d10fcde0b4b3e04daa7873ed37a", kill_on_drop: false }`
[INFO] [stdout] f8a5d5fa311f1ae2513f6406466fc46d138c8d10fcde0b4b3e04daa7873ed37a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f4380f0c22c3278f59231998d754b9b376ee72838e5a6c8139855521ce3b0a7
[INFO] running `Command { std: "docker" "start" "-a" "5f4380f0c22c3278f59231998d754b9b376ee72838e5a6c8139855521ce3b0a7", kill_on_drop: false }`
[INFO] [stderr] warning: struct `A` is never constructed
[INFO] [stderr]   --> tests/test_expand.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct A {
[INFO] [stderr]    |        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IsEmpty` is never used
[INFO] [stderr]  --> tests/test_expand.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub trait IsEmpty {
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `is_empty_derive` (test "test_expand") generated 2 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/is_empty_derive-3b4f8c1e8468e97c)
[INFO] [stderr]      Running tests/test_expand.rs (/opt/rustwide/target/debug/deps/test_expand-50db61be4bc7f459)
[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 is_empty_derive
[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] [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" "5f4380f0c22c3278f59231998d754b9b376ee72838e5a6c8139855521ce3b0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4380f0c22c3278f59231998d754b9b376ee72838e5a6c8139855521ce3b0a7", kill_on_drop: false }`
[INFO] [stdout] 5f4380f0c22c3278f59231998d754b9b376ee72838e5a6c8139855521ce3b0a7