[INFO] cloning repository https://github.com/boopstep/simplefs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boopstep/simplefs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboopstep%2Fsimplefs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboopstep%2Fsimplefs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aec37ee323838aff48e49631c876654872723315
[INFO] checking boopstep/simplefs against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboopstep%2Fsimplefs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boopstep/simplefs on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boopstep/simplefs
[INFO] finished tweaking git repo https://github.com/boopstep/simplefs
[INFO] tweaked toml for git repo https://github.com/boopstep/simplefs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/boopstep/simplefs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce66c9031ddbe4c431b64c10d67c958a0099e860d119d57a25df2b76f845e63a
[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" "ce66c9031ddbe4c431b64c10d67c958a0099e860d119d57a25df2b76f845e63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce66c9031ddbe4c431b64c10d67c958a0099e860d119d57a25df2b76f845e63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce66c9031ddbe4c431b64c10d67c958a0099e860d119d57a25df2b76f845e63a", kill_on_drop: false }`
[INFO] [stdout] ce66c9031ddbe4c431b64c10d67c958a0099e860d119d57a25df2b76f845e63a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02f678f80e9dad290198c06f8f7eb68b7f2988f7220d11d4660eca1a6d453517
[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" "02f678f80e9dad290198c06f8f7eb68b7f2988f7220d11d4660eca1a6d453517", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]    Compiling simplefs-fuse v0.1.0 (/opt/rustwide/workdir/simplefs-fuse)
[INFO] [stderr]     Checking simplefs v0.1.0 (/opt/rustwide/workdir/simplefs)
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]  --> simplefs/examples/hello.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let l = args.len() as u8;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "02f678f80e9dad290198c06f8f7eb68b7f2988f7220d11d4660eca1a6d453517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f678f80e9dad290198c06f8f7eb68b7f2988f7220d11d4660eca1a6d453517", kill_on_drop: false }`
[INFO] [stdout] 02f678f80e9dad290198c06f8f7eb68b7f2988f7220d11d4660eca1a6d453517