[INFO] fetching crate fuse-backend-rs 0.1.1...
[INFO] checking fuse-backend-rs-0.1.1 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate fuse-backend-rs 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fuse-backend-rs 0.1.1 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuse-backend-rs 0.1.1
[INFO] finished tweaking crates.io crate fuse-backend-rs 0.1.1
[INFO] tweaked toml for crates.io crate fuse-backend-rs 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded epoll v4.3.1
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded vmm-sys-util v0.4.0
[INFO] [stderr]   Downloaded vm-memory v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cee5a50373cdb5c8c0c695ca58cba81bdc22123430c693d955e9b7a46ec0b78
[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" "9cee5a50373cdb5c8c0c695ca58cba81bdc22123430c693d955e9b7a46ec0b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cee5a50373cdb5c8c0c695ca58cba81bdc22123430c693d955e9b7a46ec0b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cee5a50373cdb5c8c0c695ca58cba81bdc22123430c693d955e9b7a46ec0b78", kill_on_drop: false }`
[INFO] [stdout] 9cee5a50373cdb5c8c0c695ca58cba81bdc22123430c693d955e9b7a46ec0b78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dba926aadb8697a1ef525d6f3f3fe1d51d11f62e9ae0805abbd49d9cd5692adf
[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" "dba926aadb8697a1ef525d6f3f3fe1d51d11f62e9ae0805abbd49d9cd5692adf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking vm-memory v0.4.0
[INFO] [stderr]     Checking vmm-sys-util v0.4.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking epoll v4.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking fuse-backend-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/passthrough/mod.rs:497:38
[INFO] [stdout]     |
[INFO] [stdout] 497 |                     if data.refcount.compare_and_swap(curr, new, Ordering::AcqRel) == curr {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/passthrough/mod.rs:565:34
[INFO] [stdout]     |
[INFO] [stdout] 565 |                 if data.refcount.compare_and_swap(curr, new, Ordering::AcqRel) == curr {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/passthrough/mod.rs:497:38
[INFO] [stdout]     |
[INFO] [stdout] 497 |                     if data.refcount.compare_and_swap(curr, new, Ordering::AcqRel) == curr {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/passthrough/mod.rs:565:34
[INFO] [stdout]     |
[INFO] [stdout] 565 |                 if data.refcount.compare_and_swap(curr, new, Ordering::AcqRel) == curr {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/smoke.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |               panic!(format!(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 71 | |                 "exec failed: {}: {}",
[INFO] [stdout] 72 | |                 cmd,
[INFO] [stdout] 73 | |                 std::str::from_utf8(&output.stderr).unwrap()
[INFO] [stdout] 74 | |             ));
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 70 |             panic!(
[INFO] [stdout] 71 |                 "exec failed: {}: {}",
[INFO] [stdout] 72 |                 cmd,
[INFO] [stdout] 73 |                 std::str::from_utf8(&output.stderr).unwrap()
[INFO] [stdout] 74 |             );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.67s
[INFO] running `Command { std: "docker" "inspect" "dba926aadb8697a1ef525d6f3f3fe1d51d11f62e9ae0805abbd49d9cd5692adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dba926aadb8697a1ef525d6f3f3fe1d51d11f62e9ae0805abbd49d9cd5692adf", kill_on_drop: false }`
[INFO] [stdout] dba926aadb8697a1ef525d6f3f3fe1d51d11f62e9ae0805abbd49d9cd5692adf