[INFO] fetching crate vmap 0.4.4...
[INFO] testing vmap-0.4.4 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate vmap 0.4.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate vmap 0.4.4 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 vmap 0.4.4
[INFO] finished tweaking crates.io crate vmap 0.4.4
[INFO] tweaked toml for crates.io crate vmap 0.4.4 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 536cd51fde4ceb97956ffe37c9b4d99941bc66149c16ad2247e14bcbc715704f
[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" "536cd51fde4ceb97956ffe37c9b4d99941bc66149c16ad2247e14bcbc715704f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "536cd51fde4ceb97956ffe37c9b4d99941bc66149c16ad2247e14bcbc715704f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536cd51fde4ceb97956ffe37c9b4d99941bc66149c16ad2247e14bcbc715704f", kill_on_drop: false }`
[INFO] [stdout] 536cd51fde4ceb97956ffe37c9b4d99941bc66149c16ad2247e14bcbc715704f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 66150bf266e8406b0b5d9338d657909308f9243d35d1efc457735d5c9e881d0a
[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" "66150bf266e8406b0b5d9338d657909308f9243d35d1efc457735d5c9e881d0a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling system_error v0.1.1
[INFO] [stderr]    Compiling vmap v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "66150bf266e8406b0b5d9338d657909308f9243d35d1efc457735d5c9e881d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66150bf266e8406b0b5d9338d657909308f9243d35d1efc457735d5c9e881d0a", kill_on_drop: false }`
[INFO] [stdout] 66150bf266e8406b0b5d9338d657909308f9243d35d1efc457735d5c9e881d0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6a0202974af9066c4ca452932f5a15d86a57afb71bcea9cc44cd6f0656db5750
[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" "6a0202974af9066c4ca452932f5a15d86a57afb71bcea9cc44cd6f0656db5750", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling vmap v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "6a0202974af9066c4ca452932f5a15d86a57afb71bcea9cc44cd6f0656db5750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0202974af9066c4ca452932f5a15d86a57afb71bcea9cc44cd6f0656db5750", kill_on_drop: false }`
[INFO] [stdout] 6a0202974af9066c4ca452932f5a15d86a57afb71bcea9cc44cd6f0656db5750
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] cb92bd2359dc0368201c710f4bb599e9bd35f74d5295b77f5e24c15a14be1f4f
[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" "cb92bd2359dc0368201c710f4bb599e9bd35f74d5295b77f5e24c15a14be1f4f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 16 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vmap-99c86340e1462dce)
[INFO] [stdout] test io::tests::wrap ... ok
[INFO] [stdout] test tests::volatile ... ok
[INFO] [stdout] test tests::allocation_size ... ok
[INFO] [stdout] test tests::write_into_mut ... ok
[INFO] [stdout] test tests::alloc_offset ... ok
[INFO] [stdout] test tests::alloc_min ... ok
[INFO] [stdout] test tests::alloc_exact ... ok
[INFO] [stdout] test io::tests::size ... ok
[INFO] [stdout] test io::tests::overwrite ... ok
[INFO] [stdout] test tests::read_exact ... ok
[INFO] [stdout] test tests::copy ... ok
[INFO] [stdout] test tests::unaligned ... ok
[INFO] [stdout] test tests::read_end ... ok
[INFO] [stdout] test tests::truncate ... ok
[INFO] [stdout] test tests::read_max ... ok
[INFO] [stderr]    Doc-tests vmap
[INFO] [stdout] test tests::read_min ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stdout] test src/error.rs - error::Error::io (line 47) ... ok
[INFO] [stdout] test src/error.rs - error::Error::operation (line 206) ... ok
[INFO] [stdout] test src/error.rs - error::Error::kind (line 181) ... ok
[INFO] [stdout] test src/error.rs - error::Error::last_os_error (line 137) ... ok
[INFO] [stdout] test src/error.rs - error::Error::system (line 91) ... ok
[INFO] [stdout] test src/error.rs - error::Error::raw_os_error (line 153) ... ok
[INFO] [stdout] test src/error.rs - error::Operation::as_str (line 338) ... ok
[INFO] [stdout] test src/error.rs - error::Error::kernel (line 114) ... ok
[INFO] [stdout] test src/error.rs - error::Input::as_str (line 401) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/error.rs - error::Error::input (line 69) ... ok
[INFO] [stdout] test src/io/ring.rs - io::ring::InfiniteRing (line 158) ... ok
[INFO] [stdout] test src/io/ring.rs - io::ring::Ring (line 22) ... ok
[INFO] [stdout] test src/io/buffer.rs - io::buffer::BufWriter (line 118) ... ok
[INFO] [stdout] test src/io/buffer.rs - io::buffer::BufReader (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - AllocSize (line 290) ... ok
[INFO] [stdout] test src/lib.rs - (line 92) ... ok
[INFO] [stdout] test src/lib.rs - allocation_size (line 257) ... ok
[INFO] [stdout] test src/lib.rs - Size::size (line 443) ... ok
[INFO] [stdout] test src/map.rs - map::Map::file_max (line 143) ... ok
[INFO] [stdout] test src/lib.rs - Size::offset (line 425) ... ok
[INFO] [stdout] test src/lib.rs - Size::round (line 385) ... ok
[INFO] [stdout] test src/lib.rs - Size::with_size (line 369) ... ok
[INFO] [stdout] test src/lib.rs - Size::truncate (line 405) ... ok
[INFO] [stdout] test src/lib.rs - page_size (line 236) ... ok
[INFO] [stdout] test src/lib.rs - Size::count (line 461) ... ok
[INFO] [stdout] test src/map.rs - map::Map (line 20) ... ok
[INFO] [stdout] test src/lib.rs - Size (line 311) ... ok
[INFO] [stdout] test src/map.rs - map::Map::into_map_mut (line 185) ... ok
[INFO] [stdout] test src/map.rs - map::Map::file (line 107) ... ok
[INFO] [stdout] test src/map.rs - map::Map::open (line 79) ... ok
[INFO] [stdout] test src/map.rs - map::MapMut::copy (line 444) ... ok
[INFO] [stdout] test src/map.rs - map::Map::with_options (line 50) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::alloc (line 1474) ... ok
[INFO] [stdout] test src/map.rs - map::MapMut::with_options (line 337) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::create (line 855) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::copy (line 824) ... ok
[INFO] [stdout] test src/map.rs - map::MapMut::new (line 370) ... ok
[INFO] [stdout] test src/map.rs - map::MapMut::into_map (line 505) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::len (line 1061) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::create_new (line 898) ... ok
[INFO] [stdout] test src/map.rs - map::MapMut::open (line 388) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::len (line 1026) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::len (line 1102) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::map_if (line 1409) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::map (line 1373) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::write (line 792) ... FAILED
[INFO] [stdout] test src/map.rs - map::Options<T>::offset (line 976) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::resize (line 1238) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::open (line 1299) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::resize (line 1170) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::open_if (line 1337) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::resize (line 1198) ... ok
[INFO] [stdout] test src/map.rs - map::Options<T>::truncate (line 934) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/map.rs - map::Options<T>::write (line 792) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Error { op: MapFile, kind: ReadOnlyFilesystem, io: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/map.rs - map::Options<T>::write (line 792)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 54 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 20.47s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "cb92bd2359dc0368201c710f4bb599e9bd35f74d5295b77f5e24c15a14be1f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb92bd2359dc0368201c710f4bb599e9bd35f74d5295b77f5e24c15a14be1f4f", kill_on_drop: false }`
[INFO] [stdout] cb92bd2359dc0368201c710f4bb599e9bd35f74d5295b77f5e24c15a14be1f4f