[INFO] fetching crate iovec 0.1.4...
[INFO] testing iovec-0.1.4 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate iovec 0.1.4 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate iovec 0.1.4 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iovec 0.1.4
[INFO] finished tweaking crates.io crate iovec 0.1.4
[INFO] tweaked toml for crates.io crate iovec 0.1.4 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34538c2d7a326c4874389b4564a2d6effa8f8343add535fbe0972744808febef
[INFO] running `Command { std: "docker" "start" "-a" "34538c2d7a326c4874389b4564a2d6effa8f8343add535fbe0972744808febef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34538c2d7a326c4874389b4564a2d6effa8f8343add535fbe0972744808febef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34538c2d7a326c4874389b4564a2d6effa8f8343add535fbe0972744808febef", kill_on_drop: false }`
[INFO] [stdout] 34538c2d7a326c4874389b4564a2d6effa8f8343add535fbe0972744808febef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dc982787d3655816fa75c75574bfd45176f49c61534f72e731f08a60650333c
[INFO] running `Command { std: "docker" "start" "-a" "7dc982787d3655816fa75c75574bfd45176f49c61534f72e731f08a60650333c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling iovec v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "7dc982787d3655816fa75c75574bfd45176f49c61534f72e731f08a60650333c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc982787d3655816fa75c75574bfd45176f49c61534f72e731f08a60650333c", kill_on_drop: false }`
[INFO] [stdout] 7dc982787d3655816fa75c75574bfd45176f49c61534f72e731f08a60650333c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23554311c6207d9c1237adf74c9f848d47c24295583cdaf5d68f6c374e584d19
[INFO] running `Command { std: "docker" "start" "-a" "23554311c6207d9c1237adf74c9f848d47c24295583cdaf5d68f6c374e584d19", kill_on_drop: false }`
[INFO] [stderr]    Compiling iovec v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "23554311c6207d9c1237adf74c9f848d47c24295583cdaf5d68f6c374e584d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23554311c6207d9c1237adf74c9f848d47c24295583cdaf5d68f6c374e584d19", kill_on_drop: false }`
[INFO] [stdout] 23554311c6207d9c1237adf74c9f848d47c24295583cdaf5d68f6c374e584d19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f8bf14b91b918efdcaf2ebfc07f44fae77f2a8eb8f0e957fbf5f66b3041260d
[INFO] running `Command { std: "docker" "start" "-a" "3f8bf14b91b918efdcaf2ebfc07f44fae77f2a8eb8f0e957fbf5f66b3041260d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iovec-b409767ebadd99e1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::convert_mut ... ok
[INFO] [stdout] test test::convert_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iovec
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/unix.rs - unix::as_os_slice_mut (line 54) ... ok
[INFO] [stdout] test src/unix.rs - unix::as_os_slice (line 32) ... ok
[INFO] [stdout] test src/unix.rs - unix (line 8) ... ok
[INFO] [stdout] test src/lib.rs - IoVec (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3f8bf14b91b918efdcaf2ebfc07f44fae77f2a8eb8f0e957fbf5f66b3041260d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8bf14b91b918efdcaf2ebfc07f44fae77f2a8eb8f0e957fbf5f66b3041260d", kill_on_drop: false }`
[INFO] [stdout] 3f8bf14b91b918efdcaf2ebfc07f44fae77f2a8eb8f0e957fbf5f66b3041260d