[INFO] fetching crate yoke 0.2.3...
[INFO] testing yoke-0.2.3 against 1.55.0 for beta-1.56-2
[INFO] extracting crate yoke 0.2.3 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate yoke 0.2.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yoke 0.2.3
[INFO] finished tweaking crates.io crate yoke 0.2.3
[INFO] tweaked toml for crates.io crate yoke 0.2.3 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yoke-derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] def52221e43c94b2498d70f960d350246e2eb02ed9d5bee24eaadbe8d29fc5e3
[INFO] running `Command { std: "docker" "start" "-a" "def52221e43c94b2498d70f960d350246e2eb02ed9d5bee24eaadbe8d29fc5e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "def52221e43c94b2498d70f960d350246e2eb02ed9d5bee24eaadbe8d29fc5e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def52221e43c94b2498d70f960d350246e2eb02ed9d5bee24eaadbe8d29fc5e3", kill_on_drop: false }`
[INFO] [stdout] def52221e43c94b2498d70f960d350246e2eb02ed9d5bee24eaadbe8d29fc5e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b4cf98b2eda7509d48a81972ce7da52a6d2791a40a7b0172194dea7d9897c85
[INFO] running `Command { std: "docker" "start" "-a" "8b4cf98b2eda7509d48a81972ce7da52a6d2791a40a7b0172194dea7d9897c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling yoke v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.03s
[INFO] running `Command { std: "docker" "inspect" "8b4cf98b2eda7509d48a81972ce7da52a6d2791a40a7b0172194dea7d9897c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b4cf98b2eda7509d48a81972ce7da52a6d2791a40a7b0172194dea7d9897c85", kill_on_drop: false }`
[INFO] [stdout] 8b4cf98b2eda7509d48a81972ce7da52a6d2791a40a7b0172194dea7d9897c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5a9ef3b0acf11a45fafcafb768c08627935c720dd119db0535a5f7acaa5427b
[INFO] running `Command { std: "docker" "start" "-a" "b5a9ef3b0acf11a45fafcafb768c08627935c720dd119db0535a5f7acaa5427b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling yoke v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.20s
[INFO] running `Command { std: "docker" "inspect" "b5a9ef3b0acf11a45fafcafb768c08627935c720dd119db0535a5f7acaa5427b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a9ef3b0acf11a45fafcafb768c08627935c720dd119db0535a5f7acaa5427b", kill_on_drop: false }`
[INFO] [stdout] b5a9ef3b0acf11a45fafcafb768c08627935c720dd119db0535a5f7acaa5427b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75389a6e61dc93efe8e69ecff43b32a538fe05f5057d29749305326e8c9e90c6
[INFO] running `Command { std: "docker" "start" "-a" "75389a6e61dc93efe8e69ecff43b32a538fe05f5057d29749305326e8c9e90c6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yoke-7794d8ab1c87cce0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test yoke::test_clone ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yoke
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::project (line 545) ... ignored
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::project (line 558) ... ignored
[INFO] [stdout] test src/yokeable.rs - yokeable::Yokeable::transform_mut (line 163) - compile fail ... ok
[INFO] [stdout] test src/yoke.rs - yoke::_ (line 724) - compile fail ... ok
[INFO] [stdout] test src/yoke.rs - yoke::_ (line 737) - compile fail ... ok
[INFO] [stdout] test src/yoke.rs - yoke::_ (line 711) - compile fail ... ok
[INFO] [stdout] test src/yokeable.rs - yokeable::Yokeable::transform_mut (line 140) - compile fail ... ok
[INFO] [stdout] test src/trait_hack.rs - trait_hack (line 141) ... ok
[INFO] [stdout] test src/trait_hack.rs - trait_hack (line 31) - compile fail ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::into_backing_cart (line 226) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, ()>::new_always_owned (line 373) ... ok
[INFO] [stdout] test src/trait_hack.rs - trait_hack::YokeTraitHack (line 219) ... ok
[INFO] [stdout] test src/yokeable.rs - yokeable::Yokeable (line 46) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke (line 35) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::into_backing_cart (line 243) ... ok
[INFO] [stdout] test src/yokeable.rs - yokeable::Yokeable::transform_mut (line 213) ... ok
[INFO] [stdout] test src/trait_hack.rs - trait_hack (line 78) ... ok
[INFO] [stdout] test src/zero_copy_from.rs - zero_copy_from::Yoke<Y, Box<C>>::attach_to_box_cart (line 126) ... ok
[INFO] [stdout] test src/zero_copy_from.rs - zero_copy_from::ZeroCopyFrom (line 31) ... ok
[INFO] [stdout] test src/zero_copy_from.rs - zero_copy_from::Yoke<Y, &'b C>::attach_to_borrowed_cart (line 98) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::try_attach_to_cart_badly (line 149) ... ok
[INFO] [stdout] test src/zero_copy_from.rs - zero_copy_from::Yoke<Y, Rc<C>>::attach_to_rc_cart (line 156) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::attach_to_cart_badly (line 109) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::get (line 184) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, Option<C>>::new_owned (line 403) ... ok
[INFO] [stdout] test src/yoke.rs - yoke::Yoke<Y, C>::with_mut (line 279) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 2.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "75389a6e61dc93efe8e69ecff43b32a538fe05f5057d29749305326e8c9e90c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75389a6e61dc93efe8e69ecff43b32a538fe05f5057d29749305326e8c9e90c6", kill_on_drop: false }`
[INFO] [stdout] 75389a6e61dc93efe8e69ecff43b32a538fe05f5057d29749305326e8c9e90c6