[INFO] fetching crate flag-mast-derive 0.2.1...
[INFO] testing flag-mast-derive-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flag-mast-derive 0.2.1 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate flag-mast-derive 0.2.1 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 flag-mast-derive 0.2.1
[INFO] finished tweaking crates.io crate flag-mast-derive 0.2.1
[INFO] tweaked toml for crates.io crate flag-mast-derive 0.2.1 written to /workspace/builds/worker-28/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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 1219de011708cea6cc4fcc140bbf5a054ddb3216e65bdcd5d80815188c272c9b
[INFO] running `Command { std: "docker" "start" "-a" "1219de011708cea6cc4fcc140bbf5a054ddb3216e65bdcd5d80815188c272c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1219de011708cea6cc4fcc140bbf5a054ddb3216e65bdcd5d80815188c272c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1219de011708cea6cc4fcc140bbf5a054ddb3216e65bdcd5d80815188c272c9b", kill_on_drop: false }`
[INFO] [stdout] 1219de011708cea6cc4fcc140bbf5a054ddb3216e65bdcd5d80815188c272c9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] f235ff11090cb063ce30842915c62178b9142d85798a6df774238505d3809179
[INFO] running `Command { std: "docker" "start" "-a" "f235ff11090cb063ce30842915c62178b9142d85798a6df774238505d3809179", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling flag-mast-derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.01s
[INFO] running `Command { std: "docker" "inspect" "f235ff11090cb063ce30842915c62178b9142d85798a6df774238505d3809179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f235ff11090cb063ce30842915c62178b9142d85798a6df774238505d3809179", kill_on_drop: false }`
[INFO] [stdout] f235ff11090cb063ce30842915c62178b9142d85798a6df774238505d3809179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] d66056985b4a19f01bd7bcd63707d768fa4b49e930c3b003a4277d2382242ecd
[INFO] running `Command { std: "docker" "start" "-a" "d66056985b4a19f01bd7bcd63707d768fa4b49e930c3b003a4277d2382242ecd", kill_on_drop: false }`
[INFO] [stderr]    Compiling flag-mast-derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "d66056985b4a19f01bd7bcd63707d768fa4b49e930c3b003a4277d2382242ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66056985b4a19f01bd7bcd63707d768fa4b49e930c3b003a4277d2382242ecd", kill_on_drop: false }`
[INFO] [stdout] d66056985b4a19f01bd7bcd63707d768fa4b49e930c3b003a4277d2382242ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 060f789e59179a8af17e845b2629c8a3d3ea9feb3f268e558f3495b3109dc00f
[INFO] running `Command { std: "docker" "start" "-a" "060f789e59179a8af17e845b2629c8a3d3ea9feb3f268e558f3495b3109dc00f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flag_mast_derive-9af05edc6832100d)
[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 flag-mast-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] running `Command { std: "docker" "inspect" "060f789e59179a8af17e845b2629c8a3d3ea9feb3f268e558f3495b3109dc00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060f789e59179a8af17e845b2629c8a3d3ea9feb3f268e558f3495b3109dc00f", kill_on_drop: false }`
[INFO] [stdout] 060f789e59179a8af17e845b2629c8a3d3ea9feb3f268e558f3495b3109dc00f