[INFO] fetching crate tand 0.1.0...
[INFO] testing tand-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tand 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tand 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 tand 0.1.0
[INFO] finished tweaking crates.io crate tand 0.1.0
[INFO] tweaked toml for crates.io crate tand 0.1.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 923ce1adbacff67ca77d3bc9328723b3eb1109a585ef2688466f360737bab82b
[INFO] running `Command { std: "docker" "start" "-a" "923ce1adbacff67ca77d3bc9328723b3eb1109a585ef2688466f360737bab82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "923ce1adbacff67ca77d3bc9328723b3eb1109a585ef2688466f360737bab82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "923ce1adbacff67ca77d3bc9328723b3eb1109a585ef2688466f360737bab82b", kill_on_drop: false }`
[INFO] [stdout] 923ce1adbacff67ca77d3bc9328723b3eb1109a585ef2688466f360737bab82b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f22b2a5957a205c0a5e85a5ebd49d2cc05438ef870256b4cd74c4f7071c90491
[INFO] running `Command { std: "docker" "start" "-a" "f22b2a5957a205c0a5e85a5ebd49d2cc05438ef870256b4cd74c4f7071c90491", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tand v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "f22b2a5957a205c0a5e85a5ebd49d2cc05438ef870256b4cd74c4f7071c90491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22b2a5957a205c0a5e85a5ebd49d2cc05438ef870256b4cd74c4f7071c90491", kill_on_drop: false }`
[INFO] [stdout] f22b2a5957a205c0a5e85a5ebd49d2cc05438ef870256b4cd74c4f7071c90491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 075b718548b29899cddf6a72001a5182a5509a198f3e4bf8361c02dcf3d28d34
[INFO] running `Command { std: "docker" "start" "-a" "075b718548b29899cddf6a72001a5182a5509a198f3e4bf8361c02dcf3d28d34", kill_on_drop: false }`
[INFO] [stderr]    Compiling tand v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "075b718548b29899cddf6a72001a5182a5509a198f3e4bf8361c02dcf3d28d34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075b718548b29899cddf6a72001a5182a5509a198f3e4bf8361c02dcf3d28d34", kill_on_drop: false }`
[INFO] [stdout] 075b718548b29899cddf6a72001a5182a5509a198f3e4bf8361c02dcf3d28d34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a05eee655d8dcb92353edf8f402976598c4b9efa3fc171e4aedb3aebf46b151c
[INFO] running `Command { std: "docker" "start" "-a" "a05eee655d8dcb92353edf8f402976598c4b9efa3fc171e4aedb3aebf46b151c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tand-0e7c6534ecd0a59d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests tand
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "a05eee655d8dcb92353edf8f402976598c4b9efa3fc171e4aedb3aebf46b151c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05eee655d8dcb92353edf8f402976598c4b9efa3fc171e4aedb3aebf46b151c", kill_on_drop: false }`
[INFO] [stdout] a05eee655d8dcb92353edf8f402976598c4b9efa3fc171e4aedb3aebf46b151c