[INFO] fetching crate buffett_program_interface 0.1.0...
[INFO] testing buffett_program_interface-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate buffett_program_interface 0.1.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate buffett_program_interface 0.1.0 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 buffett_program_interface 0.1.0
[INFO] finished tweaking crates.io crate buffett_program_interface 0.1.0
[INFO] tweaked toml for crates.io crate buffett_program_interface 0.1.0 written to /workspace/builds/worker-73/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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] a972de83a602100c0f583272566cc5e6c4a48a30681da5871bfb82ade158f7f2
[INFO] running `Command { std: "docker" "start" "-a" "a972de83a602100c0f583272566cc5e6c4a48a30681da5871bfb82ade158f7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a972de83a602100c0f583272566cc5e6c4a48a30681da5871bfb82ade158f7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a972de83a602100c0f583272566cc5e6c4a48a30681da5871bfb82ade158f7f2", kill_on_drop: false }`
[INFO] [stdout] a972de83a602100c0f583272566cc5e6c4a48a30681da5871bfb82ade158f7f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 5df03d4fc4c7654638fab815ad5c4e3f9bdf30b04166bf2114fc2bed049b45e1
[INFO] running `Command { std: "docker" "start" "-a" "5df03d4fc4c7654638fab815ad5c4e3f9bdf30b04166bf2114fc2bed049b45e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling bs58 v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling buffett_program_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.41s
[INFO] running `Command { std: "docker" "inspect" "5df03d4fc4c7654638fab815ad5c4e3f9bdf30b04166bf2114fc2bed049b45e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df03d4fc4c7654638fab815ad5c4e3f9bdf30b04166bf2114fc2bed049b45e1", kill_on_drop: false }`
[INFO] [stdout] 5df03d4fc4c7654638fab815ad5c4e3f9bdf30b04166bf2114fc2bed049b45e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 9f7895ae6ccc9a4eb4ca2b7a682ace26568d4c81816f0faf92cad5047b27fbef
[INFO] running `Command { std: "docker" "start" "-a" "9f7895ae6ccc9a4eb4ca2b7a682ace26568d4c81816f0faf92cad5047b27fbef", kill_on_drop: false }`
[INFO] [stderr]    Compiling buffett_program_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "9f7895ae6ccc9a4eb4ca2b7a682ace26568d4c81816f0faf92cad5047b27fbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7895ae6ccc9a4eb4ca2b7a682ace26568d4c81816f0faf92cad5047b27fbef", kill_on_drop: false }`
[INFO] [stdout] 9f7895ae6ccc9a4eb4ca2b7a682ace26568d4c81816f0faf92cad5047b27fbef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 27f6ca01135996f9103520ceb79156807469fa9ef3cbce621df89846fcce3a71
[INFO] running `Command { std: "docker" "start" "-a" "27f6ca01135996f9103520ceb79156807469fa9ef3cbce621df89846fcce3a71", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/common-fab38db6fa7290cd)
[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 common
[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" "27f6ca01135996f9103520ceb79156807469fa9ef3cbce621df89846fcce3a71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27f6ca01135996f9103520ceb79156807469fa9ef3cbce621df89846fcce3a71", kill_on_drop: false }`
[INFO] [stdout] 27f6ca01135996f9103520ceb79156807469fa9ef3cbce621df89846fcce3a71