[INFO] fetching crate rsfs 0.4.1...
[INFO] testing rsfs-0.4.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate rsfs 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rsfs 0.4.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsfs 0.4.1
[INFO] finished tweaking crates.io crate rsfs 0.4.1
[INFO] tweaked toml for crates.io crate rsfs 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", 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] 05f62f5d3a3e314e22bbb3ea8aa8349b1786f114076b06ec134415356241a012
[INFO] running `Command { std: "docker" "start" "-a" "05f62f5d3a3e314e22bbb3ea8aa8349b1786f114076b06ec134415356241a012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05f62f5d3a3e314e22bbb3ea8aa8349b1786f114076b06ec134415356241a012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f62f5d3a3e314e22bbb3ea8aa8349b1786f114076b06ec134415356241a012", kill_on_drop: false }`
[INFO] [stdout] 05f62f5d3a3e314e22bbb3ea8aa8349b1786f114076b06ec134415356241a012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33ebe73881cb6e76f746c5d453c36bcae14963da4ba7cc2493c0271a296191bb
[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" "33ebe73881cb6e76f746c5d453c36bcae14963da4ba7cc2493c0271a296191bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsfs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "33ebe73881cb6e76f746c5d453c36bcae14963da4ba7cc2493c0271a296191bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ebe73881cb6e76f746c5d453c36bcae14963da4ba7cc2493c0271a296191bb", kill_on_drop: false }`
[INFO] [stdout] 33ebe73881cb6e76f746c5d453c36bcae14963da4ba7cc2493c0271a296191bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffb4f3bca5634bb75788b93e4f16a714eba05127c8511d1f9cc1a115d2805ed2
[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" "ffb4f3bca5634bb75788b93e4f16a714eba05127c8511d1f9cc1a115d2805ed2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rsfs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem/unix.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut dst = &mut self.data;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1933:14
[INFO] [stdout]      |
[INFO] [stdout] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stdout]      |              ----^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/mem/unix.rs:1958:21
[INFO] [stdout]      |
[INFO] [stdout] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stdout]      |                     ----^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "ffb4f3bca5634bb75788b93e4f16a714eba05127c8511d1f9cc1a115d2805ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb4f3bca5634bb75788b93e4f16a714eba05127c8511d1f9cc1a115d2805ed2", kill_on_drop: false }`
[INFO] [stdout] ffb4f3bca5634bb75788b93e4f16a714eba05127c8511d1f9cc1a115d2805ed2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d62d13b9784511a9d19561e3469551b7d37e3c922f350a298d21537ec5d9ddba
[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" "d62d13b9784511a9d19561e3469551b7d37e3c922f350a298d21537ec5d9ddba", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1933:14
[INFO] [stderr]      |
[INFO] [stderr] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stderr]      |              ----^^
[INFO] [stderr]      |              |
[INFO] [stderr]      |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1958:21
[INFO] [stderr]      |
[INFO] [stderr] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stderr]      |                     ----^^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem/unix.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let mut dst = &mut self.data;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1933:14
[INFO] [stderr]      |
[INFO] [stderr] 1933 |         let (mut fs, may_base) = self.traverse(normalize(&path), level)?;
[INFO] [stderr]      |              ----^^
[INFO] [stderr]      |              |
[INFO] [stderr]      |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/mem/unix.rs:1958:21
[INFO] [stderr]      |
[INFO] [stderr] 1958 |                 let mut child = *child; // copy out of the borrow
[INFO] [stderr]      |                     ----^^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rsfs-582c5f6df6728d47)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test mem::fs::test::create_dir ... ok
[INFO] [stdout] test mem::fs::test::create_dir_all ... ok
[INFO] [stdout] test mem::fs::test::equal ... ok
[INFO] [stdout] test mem::fs::test::read_dir ... ok
[INFO] [stdout] test mem::fs::test::hard_link ... ok
[INFO] [stdout] test mem::fs::test::remove ... ok
[INFO] [stdout] test mem::unix::test::read_dir ... ok
[INFO] [stdout] test mem::unix::test::remove ... ok
[INFO] [stdout] test mem::unix::test::remove_dir_all ... ok
[INFO] [stdout] test mem::unix::test::hard_link ... ok
[INFO] [stdout] test mem::fs::test::symlink ... ok
[INFO] [stdout] test mem::unix::test::open ... ok
[INFO] [stdout] test mem::unix::test::raw_file ... ok
[INFO] [stdout] test mem::fs::test::thread ... ok
[INFO] [stdout] test mem::unix::test::rename ... ok
[INFO] [stdout] test mem::fs::test::rename ... ok
[INFO] [stdout] test mem::fs::test::raw_file ... ok
[INFO] [stdout] test mem::fs::test::usage ... ok
[INFO] [stdout] test mem::fs::test::open ... ok
[INFO] [stdout] test mem::unix::test::create_dir ... ok
[INFO] [stdout] test mem::fs::test::remove_dir_all ... ok
[INFO] [stdout] test mem::unix::test::create_dir_all ... ok
[INFO] [stdout] test mem::unix::test::equal ... ok
[INFO] [stdout] test mem::unix::test::usage ... ok
[INFO] [stdout] test mem::unix::test::symlink ... ok
[INFO] [stdout] test mem::unix::test::thread ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rsfs
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name rsfs --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-561d2d05d7a26655.rlib --extern rsfs=/opt/rustwide/target/debug/deps/librsfs-be1380146b8aab00.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d62d13b9784511a9d19561e3469551b7d37e3c922f350a298d21537ec5d9ddba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62d13b9784511a9d19561e3469551b7d37e3c922f350a298d21537ec5d9ddba", kill_on_drop: false }`
[INFO] [stdout] d62d13b9784511a9d19561e3469551b7d37e3c922f350a298d21537ec5d9ddba
