[INFO] cloning repository https://github.com/BenEdridge/rust-fs-mock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenEdridge/rust-fs-mock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenEdridge%2Frust-fs-mock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenEdridge%2Frust-fs-mock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75569afb7e963aeaf0b0fbbc497423f54e6b561a
[INFO] checking BenEdridge/rust-fs-mock against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenEdridge%2Frust-fs-mock" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenEdridge/rust-fs-mock on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BenEdridge/rust-fs-mock
[INFO] finished tweaking git repo https://github.com/BenEdridge/rust-fs-mock
[INFO] tweaked toml for git repo https://github.com/BenEdridge/rust-fs-mock written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/BenEdridge/rust-fs-mock already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04997837a3477e1a02880ef728b5e6426bbd440c6f56c432aae0a9c5700c1841
[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" "04997837a3477e1a02880ef728b5e6426bbd440c6f56c432aae0a9c5700c1841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04997837a3477e1a02880ef728b5e6426bbd440c6f56c432aae0a9c5700c1841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04997837a3477e1a02880ef728b5e6426bbd440c6f56c432aae0a9c5700c1841", kill_on_drop: false }`
[INFO] [stdout] 04997837a3477e1a02880ef728b5e6426bbd440c6f56c432aae0a9c5700c1841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--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] 27ee788b1aa122b428b771988249c1196a7e4e090f1222520d0de90ffd5fe45e
[INFO] running `Command { std: "docker" "start" "-a" "27ee788b1aa122b428b771988249c1196a7e4e090f1222520d0de90ffd5fe45e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-fs-mock v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/lib.rs (41 fixes)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:722:5
[INFO] [stdout]     |
[INFO] [stdout] 722 |     pub fn new() -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 723 |         OpenOptions::new()
[INFO] [stdout]     |         ------------------ recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_dir_all`
[INFO] [stdout]     --> src/lib.rs:2209:8
[INFO] [stdout]      |
[INFO] [stdout] 2209 |     fn create_dir_all(&self, _path: &Path) -> io::Result<()> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:722:5
[INFO] [stdout]     |
[INFO] [stdout] 722 |     pub fn new() -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 723 |         OpenOptions::new()
[INFO] [stdout]     |         ------------------ recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_dir_all`
[INFO] [stdout]     --> src/lib.rs:2209:8
[INFO] [stdout]      |
[INFO] [stdout] 2209 |     fn create_dir_all(&self, _path: &Path) -> io::Result<()> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust-fs-mock v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:722:5
[INFO] [stdout]     |
[INFO] [stdout] 722 |     pub fn new() -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 723 |         OpenOptions::new()
[INFO] [stdout]     |         ------------------ recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_dir_all`
[INFO] [stdout]     --> src/lib.rs:2209:8
[INFO] [stdout]      |
[INFO] [stdout] 2209 |     fn create_dir_all(&self, _path: &Path) -> io::Result<()> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/lib.rs:722:5
[INFO] [stdout]     |
[INFO] [stdout] 722 |     pub fn new() -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 723 |         OpenOptions::new()
[INFO] [stdout]     |         ------------------ recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_dir_all`
[INFO] [stdout]     --> src/lib.rs:2209:8
[INFO] [stdout]      |
[INFO] [stdout] 2209 |     fn create_dir_all(&self, _path: &Path) -> io::Result<()> {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "27ee788b1aa122b428b771988249c1196a7e4e090f1222520d0de90ffd5fe45e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ee788b1aa122b428b771988249c1196a7e4e090f1222520d0de90ffd5fe45e", kill_on_drop: false }`
[INFO] [stdout] 27ee788b1aa122b428b771988249c1196a7e4e090f1222520d0de90ffd5fe45e