[INFO] fetching crate io-arrays 0.3.0...
[INFO] testing io-arrays-0.3.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate io-arrays 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate io-arrays 0.3.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-arrays 0.3.0
[INFO] finished tweaking crates.io crate io-arrays 0.3.0
[INFO] tweaked toml for crates.io crate io-arrays 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 421d026f6154021807725a7e47fed48f5fc0670f89527dfca837e05cf609d501
[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" "421d026f6154021807725a7e47fed48f5fc0670f89527dfca837e05cf609d501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "421d026f6154021807725a7e47fed48f5fc0670f89527dfca837e05cf609d501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421d026f6154021807725a7e47fed48f5fc0670f89527dfca837e05cf609d501", kill_on_drop: false }`
[INFO] [stdout] 421d026f6154021807725a7e47fed48f5fc0670f89527dfca837e05cf609d501
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4c74b083a44658db97477b2b6b159f17365bc290728e73948c725ea93ca4e060
[INFO] running `Command { std: "docker" "start" "-a" "4c74b083a44658db97477b2b6b159f17365bc290728e73948c725ea93ca4e060", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling duplex v0.3.1
[INFO] [stderr]    Compiling io-lifetimes v0.1.1
[INFO] [stderr]    Compiling system-interface v0.6.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling page_size v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.6.12
[INFO] [stderr]    Compiling cap-primitives v0.13.10
[INFO] [stderr]    Compiling cap-std v0.13.10
[INFO] [stderr]    Compiling cap-fs-ext v0.13.10
[INFO] [stderr]    Compiling io-streams v0.3.1
[INFO] [stderr]    Compiling io-arrays v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling posish v0.6.3
[INFO] [stderr]    Compiling fs-set-times v0.3.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.63s
[INFO] running `Command { std: "docker" "inspect" "4c74b083a44658db97477b2b6b159f17365bc290728e73948c725ea93ca4e060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c74b083a44658db97477b2b6b159f17365bc290728e73948c725ea93ca4e060", kill_on_drop: false }`
[INFO] [stdout] 4c74b083a44658db97477b2b6b159f17365bc290728e73948c725ea93ca4e060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17234edc85a59bb85a26301a365c16d5beac534e626021c8e3cb5268a5ace654
[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" "17234edc85a59bb85a26301a365c16d5beac534e626021c8e3cb5268a5ace654", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling cap-tempfile v0.13.10
[INFO] [stderr]    Compiling io-arrays v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "17234edc85a59bb85a26301a365c16d5beac534e626021c8e3cb5268a5ace654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17234edc85a59bb85a26301a365c16d5beac534e626021c8e3cb5268a5ace654", kill_on_drop: false }`
[INFO] [stdout] 17234edc85a59bb85a26301a365c16d5beac534e626021c8e3cb5268a5ace654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 261edb322ae18cceeb265024b87c529a4c59bb84b2836aad88422f40992e16a4
[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" "261edb322ae18cceeb265024b87c529a4c59bb84b2836aad88422f40992e16a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_arrays-fbc4a560f0bfaa22)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-5f7875f8e09f5d40)
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_bytes ... ok
[INFO] [stdout] test test_write_past_end ... ok
[INFO] [stdout] test test_read_past_end ... ok
[INFO] [stdout] test test_various_edits ... ok
[INFO] [stdout] test test_streaming_read ... ok
[INFO] [stdout] test test_write_nothing_past_end ... ok
[INFO] [stdout] test test_anonymous ... ok
[INFO] [stdout] test test_small_copy ... 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] [stderr]    Doc-tests io-arrays
[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" "261edb322ae18cceeb265024b87c529a4c59bb84b2836aad88422f40992e16a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261edb322ae18cceeb265024b87c529a4c59bb84b2836aad88422f40992e16a4", kill_on_drop: false }`
[INFO] [stdout] 261edb322ae18cceeb265024b87c529a4c59bb84b2836aad88422f40992e16a4