[INFO] cloning repository https://github.com/zekesonxx/regexfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zekesonxx/regexfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzekesonxx%2Fregexfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzekesonxx%2Fregexfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf6aa6118ca1e5e8b77a4ed6cc9d37147f8db1ea
[INFO] checking zekesonxx/regexfs against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzekesonxx%2Fregexfs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zekesonxx/regexfs on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zekesonxx/regexfs
[INFO] finished tweaking git repo https://github.com/zekesonxx/regexfs
[INFO] tweaked toml for git repo https://github.com/zekesonxx/regexfs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/zekesonxx/regexfs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c98a06837f3826493eb2ffacb7735d7aa93521a248d6b4bdf0e55270bf8daf0
[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" "4c98a06837f3826493eb2ffacb7735d7aa93521a248d6b4bdf0e55270bf8daf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c98a06837f3826493eb2ffacb7735d7aa93521a248d6b4bdf0e55270bf8daf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c98a06837f3826493eb2ffacb7735d7aa93521a248d6b4bdf0e55270bf8daf0", kill_on_drop: false }`
[INFO] [stdout] 4c98a06837f3826493eb2ffacb7735d7aa93521a248d6b4bdf0e55270bf8daf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74541d1accfa5e2694e364fb3dd0b8d23762924d203d98c275dfdfe9f5afc5ec
[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" "74541d1accfa5e2694e364fb3dd0b8d23762924d203d98c275dfdfe9f5afc5ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking regexfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `libc::ENOENT`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::ENOENT;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Timespec`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use time::Timespec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FileAttr`, `FileType`, `Filesystem`, `ReplyAttr`, `ReplyData`, `ReplyDirectory`, `ReplyEntry`, `Request`
[INFO] [stdout]   --> src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | use fuse::{FileType, FileAttr, Filesystem, Request, ReplyData, ReplyEntry, ReplyAttr, ReplyDirectory};
[INFO] [stdout]    |            ^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/regexfs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ReplyOpen`
[INFO] [stdout]   --> src/regexfs.rs:11:103
[INFO] [stdout]    |
[INFO] [stdout] 11 | use fuse::{FileType, FileAttr, Filesystem, Request, ReplyData, ReplyEntry, ReplyAttr, ReplyDirectory, ReplyOpen};
[INFO] [stdout]    |                                                                                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::ENOENT`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::ENOENT;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Timespec`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use time::Timespec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FileAttr`, `FileType`, `Filesystem`, `ReplyAttr`, `ReplyData`, `ReplyDirectory`, `ReplyEntry`, `Request`
[INFO] [stdout]   --> src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | use fuse::{FileType, FileAttr, Filesystem, Request, ReplyData, ReplyEntry, ReplyAttr, ReplyDirectory};
[INFO] [stdout]    |            ^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/regexfs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ReplyOpen`
[INFO] [stdout]   --> src/regexfs.rs:11:103
[INFO] [stdout]    |
[INFO] [stdout] 11 | use fuse::{FileType, FileAttr, Filesystem, Request, ReplyData, ReplyEntry, ReplyAttr, ReplyDirectory, ReplyOpen};
[INFO] [stdout]    |                                                                                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut filesystem = regexfs::RegexFS::new(PathBuf::from(env::args_os().nth(1).unwrap()), env::args_os().nth(2).unwrap().to_string_lo...
[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/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut filesystem = regexfs::RegexFS::new(PathBuf::from(env::args_os().nth(1).unwrap()), env::args_os().nth(2).unwrap().to_string_lo...
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.54s
[INFO] running `Command { std: "docker" "inspect" "74541d1accfa5e2694e364fb3dd0b8d23762924d203d98c275dfdfe9f5afc5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74541d1accfa5e2694e364fb3dd0b8d23762924d203d98c275dfdfe9f5afc5ec", kill_on_drop: false }`
[INFO] [stdout] 74541d1accfa5e2694e364fb3dd0b8d23762924d203d98c275dfdfe9f5afc5ec