[INFO] cloning repository https://github.com/squidboylan/sfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/squidboylan/sfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsquidboylan%2Fsfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsquidboylan%2Fsfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2f34176dd94ca51e2b57da4fe7fa4d3ce1fcc8d
[INFO] checking squidboylan/sfs against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsquidboylan%2Fsfs" "/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/squidboylan/sfs on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/squidboylan/sfs
[INFO] finished tweaking git repo https://github.com/squidboylan/sfs
[INFO] tweaked toml for git repo https://github.com/squidboylan/sfs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/squidboylan/sfs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdcef5e30533fa793ef5588048192a669454e7f648943cd6ace678d5845a73c8
[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" "cdcef5e30533fa793ef5588048192a669454e7f648943cd6ace678d5845a73c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdcef5e30533fa793ef5588048192a669454e7f648943cd6ace678d5845a73c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdcef5e30533fa793ef5588048192a669454e7f648943cd6ace678d5845a73c8", kill_on_drop: false }`
[INFO] [stdout] cdcef5e30533fa793ef5588048192a669454e7f648943cd6ace678d5845a73c8
[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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] 194e67d5d0cb425e171f6dfa9c9dd4105cbf1d0a6fd68a49f0ffbe2eab379c32
[INFO] running `Command { std: "docker" "start" "-a" "194e67d5d0cb425e171f6dfa9c9dd4105cbf1d0a6fd68a49f0ffbe2eab379c32", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking sfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `load_from_file`
[INFO] [stdout]   --> src/fs/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn load_from_file(image: &mut File) -> Result<SuperBlock> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_from_file`
[INFO] [stdout]    --> src/fs/mod.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn load_from_file(image: &mut File) -> Result<SFS> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.11s
[INFO] running `Command { std: "docker" "inspect" "194e67d5d0cb425e171f6dfa9c9dd4105cbf1d0a6fd68a49f0ffbe2eab379c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194e67d5d0cb425e171f6dfa9c9dd4105cbf1d0a6fd68a49f0ffbe2eab379c32", kill_on_drop: false }`
[INFO] [stdout] 194e67d5d0cb425e171f6dfa9c9dd4105cbf1d0a6fd68a49f0ffbe2eab379c32