[INFO] fetching crate read-write-ext 1.0.0...
[INFO] testing read-write-ext-1.0.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate read-write-ext 1.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate read-write-ext 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate read-write-ext 1.0.0
[INFO] tweaked toml for crates.io crate read-write-ext 1.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate read-write-ext 1.0.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate read-write-ext 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efac0c07b858ddf9ec92d88f5e14492b7cdc57ec52141e3d0562e0bef34062f6
[INFO] running `Command { std: "docker" "start" "-a" "efac0c07b858ddf9ec92d88f5e14492b7cdc57ec52141e3d0562e0bef34062f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efac0c07b858ddf9ec92d88f5e14492b7cdc57ec52141e3d0562e0bef34062f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efac0c07b858ddf9ec92d88f5e14492b7cdc57ec52141e3d0562e0bef34062f6", kill_on_drop: false }`
[INFO] [stdout] efac0c07b858ddf9ec92d88f5e14492b7cdc57ec52141e3d0562e0bef34062f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 224be80f82d141e23d2b15debc21f1a3211c17eca5bb142757e92816ba58728e
[INFO] running `Command { std: "docker" "start" "-a" "224be80f82d141e23d2b15debc21f1a3211c17eca5bb142757e92816ba58728e", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-write-ext v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "224be80f82d141e23d2b15debc21f1a3211c17eca5bb142757e92816ba58728e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "224be80f82d141e23d2b15debc21f1a3211c17eca5bb142757e92816ba58728e", kill_on_drop: false }`
[INFO] [stdout] 224be80f82d141e23d2b15debc21f1a3211c17eca5bb142757e92816ba58728e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11408b741650fc1eb53073fd7adb320e66dbb2896569b62a57ded7891850fd9b
[INFO] running `Command { std: "docker" "start" "-a" "11408b741650fc1eb53073fd7adb320e66dbb2896569b62a57ded7891850fd9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed-buffer v1.0.0
[INFO] [stderr]    Compiling read-write-ext v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "11408b741650fc1eb53073fd7adb320e66dbb2896569b62a57ded7891850fd9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11408b741650fc1eb53073fd7adb320e66dbb2896569b62a57ded7891850fd9b", kill_on_drop: false }`
[INFO] [stdout] 11408b741650fc1eb53073fd7adb320e66dbb2896569b62a57ded7891850fd9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47bce5a76737c29078d91d6107616094f283b9df0dce2262eb636f6ec7bd58c7
[INFO] running `Command { std: "docker" "start" "-a" "47bce5a76737c29078d91d6107616094f283b9df0dce2262eb636f6ec7bd58c7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_write_ext-1d285b72b2080756)
[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]      Running tests/chain.rs (/opt/rustwide/target/debug/deps/chain-e452409c1f239a3f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test reads_first_then_second ... ok
[INFO] [stdout] test passes_flush_through ... ok
[INFO] [stdout] test both_empty ... ok
[INFO] [stdout] test doesnt_read_second_when_first_returns_error ... ok
[INFO] [stdout] test passes_write_through ... ok
[INFO] [stdout] test returns_error_from_second ... ok
[INFO] [stdout] test reads_second_when_first_empty ... ok
[INFO] [stderr]      Running tests/take.rs (/opt/rustwide/target/debug/deps/take-3b66edfa3fe744e1)
[INFO] [stdout] test doesnt_read_second_when_first_has_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test doesnt_call_read_after_len_reached ... ok
[INFO] [stdout] test empty ... ok
[INFO] [stdout] test fewer_than_len_in_multiple_reads ... ok
[INFO] [stdout] test exactly_len_in_multiple_reads ... ok
[INFO] [stdout] test exactly_len ... ok
[INFO] [stdout] test doesnt_call_read_after_len_reached_in_multiple_reads ... ok
[INFO] [stdout] test doesnt_read_when_zero ... ok
[INFO] [stdout] test read_error ... ok
[INFO] [stdout] test passes_flush_through ... ok
[INFO] [stdout] test fewer_than_len ... ok
[INFO] [stdout] test passes_write_through ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_utils.rs (/opt/rustwide/target/debug/deps/test_utils-e0f613d5111d1c16)
[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 read_write_ext
[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" "47bce5a76737c29078d91d6107616094f283b9df0dce2262eb636f6ec7bd58c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47bce5a76737c29078d91d6107616094f283b9df0dce2262eb636f6ec7bd58c7", kill_on_drop: false }`
[INFO] [stdout] 47bce5a76737c29078d91d6107616094f283b9df0dce2262eb636f6ec7bd58c7