[INFO] fetching crate iovec 0.1.4...
[INFO] testing iovec-0.1.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate iovec 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate iovec 0.1.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c24b2b88c1adba809a762116ebc881221ec2e164a0a20c0f8edccb30643cef2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c24b2b88c1adba809a762116ebc881221ec2e164a0a20c0f8edccb30643cef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c24b2b88c1adba809a762116ebc881221ec2e164a0a20c0f8edccb30643cef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c24b2b88c1adba809a762116ebc881221ec2e164a0a20c0f8edccb30643cef2", kill_on_drop: false }`
[INFO] [stdout] 8c24b2b88c1adba809a762116ebc881221ec2e164a0a20c0f8edccb30643cef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b605664810c4b7e634712b59f41d5dd9fae3a31ea533f4735ac6253385cfe74
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9b605664810c4b7e634712b59f41d5dd9fae3a31ea533f4735ac6253385cfe74", kill_on_drop: false }`
[INFO] [stderr]    Compiling iovec v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "9b605664810c4b7e634712b59f41d5dd9fae3a31ea533f4735ac6253385cfe74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b605664810c4b7e634712b59f41d5dd9fae3a31ea533f4735ac6253385cfe74", kill_on_drop: false }`
[INFO] [stdout] 9b605664810c4b7e634712b59f41d5dd9fae3a31ea533f4735ac6253385cfe74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2484ab81e31dd6d0914a0202e6f15a0fd07bc1cb95ba8cc4765122d2c1c09d7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c2484ab81e31dd6d0914a0202e6f15a0fd07bc1cb95ba8cc4765122d2c1c09d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling iovec v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "c2484ab81e31dd6d0914a0202e6f15a0fd07bc1cb95ba8cc4765122d2c1c09d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2484ab81e31dd6d0914a0202e6f15a0fd07bc1cb95ba8cc4765122d2c1c09d7", kill_on_drop: false }`
[INFO] [stdout] c2484ab81e31dd6d0914a0202e6f15a0fd07bc1cb95ba8cc4765122d2c1c09d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 001a3eb7caa960d6577520726c9f08e8326a15bc4923a3c64ff725b43cd37a8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "001a3eb7caa960d6577520726c9f08e8326a15bc4923a3c64ff725b43cd37a8e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iovec-7976a97f10438c1e
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iovec
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::convert_ref ... ok
[INFO] [stdout] test test::convert_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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 (line 8) ... ok
[INFO] [stdout] test src/unix.rs - unix::as_os_slice (line 32) ... 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 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "001a3eb7caa960d6577520726c9f08e8326a15bc4923a3c64ff725b43cd37a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001a3eb7caa960d6577520726c9f08e8326a15bc4923a3c64ff725b43cd37a8e", kill_on_drop: false }`
[INFO] [stdout] 001a3eb7caa960d6577520726c9f08e8326a15bc4923a3c64ff725b43cd37a8e