[INFO] fetching crate flatmap 0.0.0...
[INFO] testing flatmap-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flatmap 0.0.0 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate flatmap 0.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flatmap 0.0.0
[INFO] finished tweaking crates.io crate flatmap 0.0.0
[INFO] tweaked toml for crates.io crate flatmap 0.0.0 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c00d14402a847b2b1256d212a003d6cfa58149d31d565818178d7f0034b98ca2
[INFO] running `Command { std: "docker" "start" "-a" "c00d14402a847b2b1256d212a003d6cfa58149d31d565818178d7f0034b98ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c00d14402a847b2b1256d212a003d6cfa58149d31d565818178d7f0034b98ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00d14402a847b2b1256d212a003d6cfa58149d31d565818178d7f0034b98ca2", kill_on_drop: false }`
[INFO] [stdout] c00d14402a847b2b1256d212a003d6cfa58149d31d565818178d7f0034b98ca2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c362f1e762e4a442582d7faaa70ef3f863e69f3f40b887072121e2289e274314
[INFO] running `Command { std: "docker" "start" "-a" "c362f1e762e4a442582d7faaa70ef3f863e69f3f40b887072121e2289e274314", kill_on_drop: false }`
[INFO] [stderr]    Compiling flatmap v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "c362f1e762e4a442582d7faaa70ef3f863e69f3f40b887072121e2289e274314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c362f1e762e4a442582d7faaa70ef3f863e69f3f40b887072121e2289e274314", kill_on_drop: false }`
[INFO] [stdout] c362f1e762e4a442582d7faaa70ef3f863e69f3f40b887072121e2289e274314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac0d63d24b2fda654b51e4cc51d8d4deca63fb965267323d863e826ebb41b0df
[INFO] running `Command { std: "docker" "start" "-a" "ac0d63d24b2fda654b51e4cc51d8d4deca63fb965267323d863e826ebb41b0df", kill_on_drop: false }`
[INFO] [stderr]    Compiling flatmap v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "ac0d63d24b2fda654b51e4cc51d8d4deca63fb965267323d863e826ebb41b0df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0d63d24b2fda654b51e4cc51d8d4deca63fb965267323d863e826ebb41b0df", kill_on_drop: false }`
[INFO] [stdout] ac0d63d24b2fda654b51e4cc51d8d4deca63fb965267323d863e826ebb41b0df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5211b1106fc897ae6692e0bc995c427959019af92034249253f9a0de33c78c68
[INFO] running `Command { std: "docker" "start" "-a" "5211b1106fc897ae6692e0bc995c427959019af92034249253f9a0de33c78c68", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flatmap-d42273052fc4a236)
[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 flatmap
[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" "5211b1106fc897ae6692e0bc995c427959019af92034249253f9a0de33c78c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5211b1106fc897ae6692e0bc995c427959019af92034249253f9a0de33c78c68", kill_on_drop: false }`
[INFO] [stdout] 5211b1106fc897ae6692e0bc995c427959019af92034249253f9a0de33c78c68