[INFO] fetching crate iterstream 0.1.2...
[INFO] testing iterstream-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate iterstream 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate iterstream 0.1.2 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 iterstream 0.1.2
[INFO] finished tweaking crates.io crate iterstream 0.1.2
[INFO] tweaked toml for crates.io crate iterstream 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate iterstream 0.1.2 already has a lockfile, it will not be regenerated
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 1321dc8094a6e5dab2e5c523a4fb8b0fd5c20510f7b1df8d4d8a0626ecdb1c21
[INFO] running `Command { std: "docker" "start" "-a" "1321dc8094a6e5dab2e5c523a4fb8b0fd5c20510f7b1df8d4d8a0626ecdb1c21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1321dc8094a6e5dab2e5c523a4fb8b0fd5c20510f7b1df8d4d8a0626ecdb1c21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1321dc8094a6e5dab2e5c523a4fb8b0fd5c20510f7b1df8d4d8a0626ecdb1c21", kill_on_drop: false }`
[INFO] [stdout] 1321dc8094a6e5dab2e5c523a4fb8b0fd5c20510f7b1df8d4d8a0626ecdb1c21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 620d1b83aa57669009545604d0dbb0dc97cd2d861f8ee10c3915878bb95c6862
[INFO] running `Command { std: "docker" "start" "-a" "620d1b83aa57669009545604d0dbb0dc97cd2d861f8ee10c3915878bb95c6862", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling futures-core v0.3.6
[INFO] [stderr]    Compiling futures-channel v0.3.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling futures-util v0.3.6
[INFO] [stderr]    Compiling futures-executor v0.3.6
[INFO] [stderr]    Compiling futures v0.3.6
[INFO] [stderr]    Compiling iterstream v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.80s
[INFO] running `Command { std: "docker" "inspect" "620d1b83aa57669009545604d0dbb0dc97cd2d861f8ee10c3915878bb95c6862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620d1b83aa57669009545604d0dbb0dc97cd2d861f8ee10c3915878bb95c6862", kill_on_drop: false }`
[INFO] [stdout] 620d1b83aa57669009545604d0dbb0dc97cd2d861f8ee10c3915878bb95c6862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f0b92c15fea02ab17c713c76e4e3012800bb47181bcb4b8a5ec126484edd54a7
[INFO] running `Command { std: "docker" "start" "-a" "f0b92c15fea02ab17c713c76e4e3012800bb47181bcb4b8a5ec126484edd54a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterstream v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f0b92c15fea02ab17c713c76e4e3012800bb47181bcb4b8a5ec126484edd54a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b92c15fea02ab17c713c76e4e3012800bb47181bcb4b8a5ec126484edd54a7", kill_on_drop: false }`
[INFO] [stdout] f0b92c15fea02ab17c713c76e4e3012800bb47181bcb4b8a5ec126484edd54a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 262cb1e61bac2661f5032b776d1c1bc5c1b1c11eb16b46877c7cb38857bd8480
[INFO] running `Command { std: "docker" "start" "-a" "262cb1e61bac2661f5032b776d1c1bc5c1b1c11eb16b46877c7cb38857bd8480", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iterstream-4b38dba1ae802011)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterstream
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - IterStream::to_stream_with_pool (line 81) ... ok
[INFO] [stdout] test src/lib.rs - IterStream::to_stream (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "262cb1e61bac2661f5032b776d1c1bc5c1b1c11eb16b46877c7cb38857bd8480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "262cb1e61bac2661f5032b776d1c1bc5c1b1c11eb16b46877c7cb38857bd8480", kill_on_drop: false }`
[INFO] [stdout] 262cb1e61bac2661f5032b776d1c1bc5c1b1c11eb16b46877c7cb38857bd8480