[INFO] fetching crate zerogc 0.2.0-alpha.4...
[INFO] testing zerogc-0.2.0-alpha.4 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate zerogc 0.2.0-alpha.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate zerogc 0.2.0-alpha.4 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zerogc 0.2.0-alpha.4
[INFO] finished tweaking crates.io crate zerogc 0.2.0-alpha.4
[INFO] tweaked toml for crates.io crate zerogc 0.2.0-alpha.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07cbfd0aa6f9c398dc77c45e3604410639057b05bd589757554dcea17fd5647c
[INFO] running `Command { std: "docker" "start" "-a" "07cbfd0aa6f9c398dc77c45e3604410639057b05bd589757554dcea17fd5647c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07cbfd0aa6f9c398dc77c45e3604410639057b05bd589757554dcea17fd5647c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07cbfd0aa6f9c398dc77c45e3604410639057b05bd589757554dcea17fd5647c", kill_on_drop: false }`
[INFO] [stdout] 07cbfd0aa6f9c398dc77c45e3604410639057b05bd589757554dcea17fd5647c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d6888293f481013d18d1b0da47dd10b976bdeb386ee79ebbeed06cb51718f2e
[INFO] running `Command { std: "docker" "start" "-a" "4d6888293f481013d18d1b0da47dd10b976bdeb386ee79ebbeed06cb51718f2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling zerogc-derive v0.2.0-alpha.4
[INFO] [stderr]    Compiling zerogc v0.2.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.38s
[INFO] running `Command { std: "docker" "inspect" "4d6888293f481013d18d1b0da47dd10b976bdeb386ee79ebbeed06cb51718f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6888293f481013d18d1b0da47dd10b976bdeb386ee79ebbeed06cb51718f2e", kill_on_drop: false }`
[INFO] [stdout] 4d6888293f481013d18d1b0da47dd10b976bdeb386ee79ebbeed06cb51718f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a909d61ec4b699d284e2ae450b0b9b7efb776d0106c496f4d0a6a630e9ac644c
[INFO] running `Command { std: "docker" "start" "-a" "a909d61ec4b699d284e2ae450b0b9b7efb776d0106c496f4d0a6a630e9ac644c", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerogc v0.2.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "a909d61ec4b699d284e2ae450b0b9b7efb776d0106c496f4d0a6a630e9ac644c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a909d61ec4b699d284e2ae450b0b9b7efb776d0106c496f4d0a6a630e9ac644c", kill_on_drop: false }`
[INFO] [stdout] a909d61ec4b699d284e2ae450b0b9b7efb776d0106c496f4d0a6a630e9ac644c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b41f25b77e45c5a4098bbcefa65e836b370c8bdfe2bd562945794b4c7fe65fb
[INFO] running `Command { std: "docker" "start" "-a" "9b41f25b77e45c5a4098bbcefa65e836b370c8bdfe2bd562945794b4c7fe65fb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zerogc-8f6b16450542684f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test manually_traced::core::test::test_null_trace ... ok
[INFO] [stdout] test manually_traced::core::test::test_trace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zerogc
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - GcContext::basic_safepoint (line 285) - compile ... ok
[INFO] [stdout] test src/macros.rs - trait_object_trace (line 6) ... ok
[INFO] [stdout] test src/lib.rs - safepoint (line 159) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9b41f25b77e45c5a4098bbcefa65e836b370c8bdfe2bd562945794b4c7fe65fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b41f25b77e45c5a4098bbcefa65e836b370c8bdfe2bd562945794b4c7fe65fb", kill_on_drop: false }`
[INFO] [stdout] 9b41f25b77e45c5a4098bbcefa65e836b370c8bdfe2bd562945794b4c7fe65fb