[INFO] fetching crate iter-tee 0.1.0...
[INFO] testing iter-tee-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate iter-tee 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate iter-tee 0.1.0 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 iter-tee 0.1.0
[INFO] finished tweaking crates.io crate iter-tee 0.1.0
[INFO] tweaked toml for crates.io crate iter-tee 0.1.0 written to /workspace/builds/worker-10/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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 2018cf159ff9ab1c280edbb52f5cd34517861eeabba214cf326959b217c13a70
[INFO] running `Command { std: "docker" "start" "-a" "2018cf159ff9ab1c280edbb52f5cd34517861eeabba214cf326959b217c13a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2018cf159ff9ab1c280edbb52f5cd34517861eeabba214cf326959b217c13a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2018cf159ff9ab1c280edbb52f5cd34517861eeabba214cf326959b217c13a70", kill_on_drop: false }`
[INFO] [stdout] 2018cf159ff9ab1c280edbb52f5cd34517861eeabba214cf326959b217c13a70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] fcf6835cf35ce64df1b4179aca780621d73f3b3940c2236ea95cc04557ea1382
[INFO] running `Command { std: "docker" "start" "-a" "fcf6835cf35ce64df1b4179aca780621d73f3b3940c2236ea95cc04557ea1382", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-tee v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "fcf6835cf35ce64df1b4179aca780621d73f3b3940c2236ea95cc04557ea1382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf6835cf35ce64df1b4179aca780621d73f3b3940c2236ea95cc04557ea1382", kill_on_drop: false }`
[INFO] [stdout] fcf6835cf35ce64df1b4179aca780621d73f3b3940c2236ea95cc04557ea1382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] abd56f5941dd1646d629bd81635f1c6af18bdce8423ba1b9420c835ea3ad001d
[INFO] running `Command { std: "docker" "start" "-a" "abd56f5941dd1646d629bd81635f1c6af18bdce8423ba1b9420c835ea3ad001d", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-tee v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "abd56f5941dd1646d629bd81635f1c6af18bdce8423ba1b9420c835ea3ad001d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd56f5941dd1646d629bd81635f1c6af18bdce8423ba1b9420c835ea3ad001d", kill_on_drop: false }`
[INFO] [stdout] abd56f5941dd1646d629bd81635f1c6af18bdce8423ba1b9420c835ea3ad001d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ba7e25b5351f3024660c0ff9a690d98b635c23802bc8c31f9a72120ca8602c2a
[INFO] running `Command { std: "docker" "start" "-a" "ba7e25b5351f3024660c0ff9a690d98b635c23802bc8c31f9a72120ca8602c2a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iter_tee-f5fac6993c1c4b50)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::drop_in_the_middle ... ok
[INFO] [stdout] test tests::just_one_tee ... ok
[INFO] [stdout] test tests::two_tees ... ok
[INFO] [stdout] test tests::clone_in_the_middle ... ok
[INFO] [stdout] test tests::two_tees_parallel ... ok
[INFO] [stdout] test tests::ten_tees_parallel ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iter-tee
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba7e25b5351f3024660c0ff9a690d98b635c23802bc8c31f9a72120ca8602c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7e25b5351f3024660c0ff9a690d98b635c23802bc8c31f9a72120ca8602c2a", kill_on_drop: false }`
[INFO] [stdout] ba7e25b5351f3024660c0ff9a690d98b635c23802bc8c31f9a72120ca8602c2a