[INFO] fetching crate buffett_program_interface 0.1.0...
[INFO] testing buffett_program_interface-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate buffett_program_interface 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate buffett_program_interface 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 951c664dcbe0ee7bbd8f81a83ac358d4273fcee8c09a6e760080bc2baf1c1223
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "951c664dcbe0ee7bbd8f81a83ac358d4273fcee8c09a6e760080bc2baf1c1223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "951c664dcbe0ee7bbd8f81a83ac358d4273fcee8c09a6e760080bc2baf1c1223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "951c664dcbe0ee7bbd8f81a83ac358d4273fcee8c09a6e760080bc2baf1c1223", kill_on_drop: false }`
[INFO] [stdout] 951c664dcbe0ee7bbd8f81a83ac358d4273fcee8c09a6e760080bc2baf1c1223
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc2ef8063d2aa50a3633d616399514672f7127b59f62bca380ac86ef3e90c1cb
[INFO] running `Command { std: "docker" "start" "-a" "dc2ef8063d2aa50a3633d616399514672f7127b59f62bca380ac86ef3e90c1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling bs58 v0.2.5
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling buffett_program_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "dc2ef8063d2aa50a3633d616399514672f7127b59f62bca380ac86ef3e90c1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc2ef8063d2aa50a3633d616399514672f7127b59f62bca380ac86ef3e90c1cb", kill_on_drop: false }`
[INFO] [stdout] dc2ef8063d2aa50a3633d616399514672f7127b59f62bca380ac86ef3e90c1cb
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc6c00974c515811ac8a172ee22c7436692242a842b14c9863822f697f7241a2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bc6c00974c515811ac8a172ee22c7436692242a842b14c9863822f697f7241a2", 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 0.68s
[INFO] running `Command { std: "docker" "inspect" "bc6c00974c515811ac8a172ee22c7436692242a842b14c9863822f697f7241a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6c00974c515811ac8a172ee22c7436692242a842b14c9863822f697f7241a2", kill_on_drop: false }`
[INFO] [stdout] bc6c00974c515811ac8a172ee22c7436692242a842b14c9863822f697f7241a2
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88c6aba9eb6cb913c8706292c42b19997be03aedac63729d2e4f7e7b45cb3187
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "88c6aba9eb6cb913c8706292c42b19997be03aedac63729d2e4f7e7b45cb3187", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/common-1d1f3647f9edfd42
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests common
[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] [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" "88c6aba9eb6cb913c8706292c42b19997be03aedac63729d2e4f7e7b45cb3187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c6aba9eb6cb913c8706292c42b19997be03aedac63729d2e4f7e7b45cb3187", kill_on_drop: false }`
[INFO] [stdout] 88c6aba9eb6cb913c8706292c42b19997be03aedac63729d2e4f7e7b45cb3187