[INFO] fetching crate sifter 0.1.0...
[INFO] testing sifter-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sifter 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sifter 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 sifter 0.1.0
[INFO] finished tweaking crates.io crate sifter 0.1.0
[INFO] tweaked toml for crates.io crate sifter 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 12f7faaad7195ed284dff8d6865d67fd73fc3da0e7221e441865e145487e58aa
[INFO] running `Command { std: "docker" "start" "-a" "12f7faaad7195ed284dff8d6865d67fd73fc3da0e7221e441865e145487e58aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12f7faaad7195ed284dff8d6865d67fd73fc3da0e7221e441865e145487e58aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f7faaad7195ed284dff8d6865d67fd73fc3da0e7221e441865e145487e58aa", kill_on_drop: false }`
[INFO] [stdout] 12f7faaad7195ed284dff8d6865d67fd73fc3da0e7221e441865e145487e58aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] cf49c0387a48bddfa915ee5394f316c01d8930f8b8d86d82da5982adee98d7ac
[INFO] running `Command { std: "docker" "start" "-a" "cf49c0387a48bddfa915ee5394f316c01d8930f8b8d86d82da5982adee98d7ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling sifter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "cf49c0387a48bddfa915ee5394f316c01d8930f8b8d86d82da5982adee98d7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf49c0387a48bddfa915ee5394f316c01d8930f8b8d86d82da5982adee98d7ac", kill_on_drop: false }`
[INFO] [stdout] cf49c0387a48bddfa915ee5394f316c01d8930f8b8d86d82da5982adee98d7ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4a61603bf2909a2a2a2eca8d16bdfb782e5fee67bb0e9f6eedbc70ed14686d61
[INFO] running `Command { std: "docker" "start" "-a" "4a61603bf2909a2a2a2eca8d16bdfb782e5fee67bb0e9f6eedbc70ed14686d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling sifter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "4a61603bf2909a2a2a2eca8d16bdfb782e5fee67bb0e9f6eedbc70ed14686d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a61603bf2909a2a2a2eca8d16bdfb782e5fee67bb0e9f6eedbc70ed14686d61", kill_on_drop: false }`
[INFO] [stdout] 4a61603bf2909a2a2a2eca8d16bdfb782e5fee67bb0e9f6eedbc70ed14686d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d3d023e4b53796a57c0259c9d20b0e248bb15083b69639bf5e81bd0d9dc01d0b
[INFO] running `Command { std: "docker" "start" "-a" "d3d023e4b53796a57c0259c9d20b0e248bb15083b69639bf5e81bd0d9dc01d0b", 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/sifter-30b1cfb31052d8f5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sifter
[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" "d3d023e4b53796a57c0259c9d20b0e248bb15083b69639bf5e81bd0d9dc01d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d023e4b53796a57c0259c9d20b0e248bb15083b69639bf5e81bd0d9dc01d0b", kill_on_drop: false }`
[INFO] [stdout] d3d023e4b53796a57c0259c9d20b0e248bb15083b69639bf5e81bd0d9dc01d0b