[INFO] fetching crate ouroboros 0.10.1...
[INFO] testing ouroboros-0.10.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ouroboros 0.10.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ouroboros 0.10.1 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 ouroboros 0.10.1
[INFO] finished tweaking crates.io crate ouroboros 0.10.1
[INFO] tweaked toml for crates.io crate ouroboros 0.10.1 written to /workspace/builds/worker-3/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b57ce4ace6a40c0144c4e1516f856d8d23ca3cb16a43ecd7ea1441f093cd117a
[INFO] running `Command { std: "docker" "start" "-a" "b57ce4ace6a40c0144c4e1516f856d8d23ca3cb16a43ecd7ea1441f093cd117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57ce4ace6a40c0144c4e1516f856d8d23ca3cb16a43ecd7ea1441f093cd117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57ce4ace6a40c0144c4e1516f856d8d23ca3cb16a43ecd7ea1441f093cd117a", kill_on_drop: false }`
[INFO] [stdout] b57ce4ace6a40c0144c4e1516f856d8d23ca3cb16a43ecd7ea1441f093cd117a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 5e8cce7b5915fb8a1c7c1682e43ff497038a9cca80c929b907a9914354706826
[INFO] running `Command { std: "docker" "start" "-a" "5e8cce7b5915fb8a1c7c1682e43ff497038a9cca80c929b907a9914354706826", kill_on_drop: false }`
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling aliasable v0.1.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling ouroboros_macro v0.10.1
[INFO] [stderr]    Compiling ouroboros v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "5e8cce7b5915fb8a1c7c1682e43ff497038a9cca80c929b907a9914354706826", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e8cce7b5915fb8a1c7c1682e43ff497038a9cca80c929b907a9914354706826", kill_on_drop: false }`
[INFO] [stdout] 5e8cce7b5915fb8a1c7c1682e43ff497038a9cca80c929b907a9914354706826
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9cc10326879201819d26207883cd83cbf4234dde4e86ca7b722377e00f33bbb4
[INFO] running `Command { std: "docker" "start" "-a" "9cc10326879201819d26207883cd83cbf4234dde4e86ca7b722377e00f33bbb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ouroboros v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "9cc10326879201819d26207883cd83cbf4234dde4e86ca7b722377e00f33bbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc10326879201819d26207883cd83cbf4234dde4e86ca7b722377e00f33bbb4", kill_on_drop: false }`
[INFO] [stdout] 9cc10326879201819d26207883cd83cbf4234dde4e86ca7b722377e00f33bbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 7a1defa59d07e4db61c18be70fb4254c03033655baf71e68eddebfc676c7c74e
[INFO] running `Command { std: "docker" "start" "-a" "7a1defa59d07e4db61c18be70fb4254c03033655baf71e68eddebfc676c7c74e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ouroboros-93fb9c67ecc6f3e5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ouroboros
[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 3 tests
[INFO] [stdout] test src/lib.rs - self_referencing (line 154) ... ignored
[INFO] [stdout] test src/lib.rs - self_referencing (line 80) ... ok
[INFO] [stdout] test src/lib.rs - self_referencing (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a1defa59d07e4db61c18be70fb4254c03033655baf71e68eddebfc676c7c74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1defa59d07e4db61c18be70fb4254c03033655baf71e68eddebfc676c7c74e", kill_on_drop: false }`
[INFO] [stdout] 7a1defa59d07e4db61c18be70fb4254c03033655baf71e68eddebfc676c7c74e