[INFO] fetching crate read-write-pipe 0.1.0...
[INFO] testing read-write-pipe-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate read-write-pipe 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate read-write-pipe 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 read-write-pipe 0.1.0
[INFO] finished tweaking crates.io crate read-write-pipe 0.1.0
[INFO] tweaked toml for crates.io crate read-write-pipe 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate read-write-pipe 0.1.0 already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f46414967b1697d5be01f25323e473ad3216b42105ff2c5528dbbce6a29dfddf
[INFO] running `Command { std: "docker" "start" "-a" "f46414967b1697d5be01f25323e473ad3216b42105ff2c5528dbbce6a29dfddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f46414967b1697d5be01f25323e473ad3216b42105ff2c5528dbbce6a29dfddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46414967b1697d5be01f25323e473ad3216b42105ff2c5528dbbce6a29dfddf", kill_on_drop: false }`
[INFO] [stdout] f46414967b1697d5be01f25323e473ad3216b42105ff2c5528dbbce6a29dfddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b246682be6c1b5545c31a52c1abbbbba91c7b272ca6eb65368905f450952eca8
[INFO] running `Command { std: "docker" "start" "-a" "b246682be6c1b5545c31a52c1abbbbba91c7b272ca6eb65368905f450952eca8", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-write-pipe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "b246682be6c1b5545c31a52c1abbbbba91c7b272ca6eb65368905f450952eca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b246682be6c1b5545c31a52c1abbbbba91c7b272ca6eb65368905f450952eca8", kill_on_drop: false }`
[INFO] [stdout] b246682be6c1b5545c31a52c1abbbbba91c7b272ca6eb65368905f450952eca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 58e3bbfbc374f7677c5cab4ecd39ebc04e2fa2d58263ef8ae5a0b89fd2cca2a1
[INFO] running `Command { std: "docker" "start" "-a" "58e3bbfbc374f7677c5cab4ecd39ebc04e2fa2d58263ef8ae5a0b89fd2cca2a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-write-pipe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "58e3bbfbc374f7677c5cab4ecd39ebc04e2fa2d58263ef8ae5a0b89fd2cca2a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58e3bbfbc374f7677c5cab4ecd39ebc04e2fa2d58263ef8ae5a0b89fd2cca2a1", kill_on_drop: false }`
[INFO] [stdout] 58e3bbfbc374f7677c5cab4ecd39ebc04e2fa2d58263ef8ae5a0b89fd2cca2a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 06032c4a2ccd37a8f6c921bb8c1342eba838b04e519f3c17b3b8f5ff34a5e67a
[INFO] running `Command { std: "docker" "start" "-a" "06032c4a2ccd37a8f6c921bb8c1342eba838b04e519f3c17b3b8f5ff34a5e67a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/read_write_pipe-ad57a0db21432246)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::writes_all_bytes_from_reader_into_writer ... 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 read-write-pipe
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ReadWritePipe (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "06032c4a2ccd37a8f6c921bb8c1342eba838b04e519f3c17b3b8f5ff34a5e67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06032c4a2ccd37a8f6c921bb8c1342eba838b04e519f3c17b3b8f5ff34a5e67a", kill_on_drop: false }`
[INFO] [stdout] 06032c4a2ccd37a8f6c921bb8c1342eba838b04e519f3c17b3b8f5ff34a5e67a