[INFO] updating cached repository https://github.com/Joshua-Wright/hardlink-deduplicator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da207b3f7c6dc3b027f1aee3b022db061bd8454a
[INFO] checking Joshua-Wright/hardlink-deduplicator against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshua-Wright%2Fhardlink-deduplicator" "/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/Joshua-Wright/hardlink-deduplicator 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/Joshua-Wright/hardlink-deduplicator
[INFO] finished tweaking git repo https://github.com/Joshua-Wright/hardlink-deduplicator
[INFO] tweaked toml for git repo https://github.com/Joshua-Wright/hardlink-deduplicator written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Joshua-Wright/hardlink-deduplicator 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] [stderr]     Blocking waiting for file lock on package cache
[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] 305f0037462c63e1139cc7eb9e61be5121fd843ea58bf3621b1b25df51c45dab
[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" "305f0037462c63e1139cc7eb9e61be5121fd843ea58bf3621b1b25df51c45dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "305f0037462c63e1139cc7eb9e61be5121fd843ea58bf3621b1b25df51c45dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "305f0037462c63e1139cc7eb9e61be5121fd843ea58bf3621b1b25df51c45dab", kill_on_drop: false }`
[INFO] [stdout] 305f0037462c63e1139cc7eb9e61be5121fd843ea58bf3621b1b25df51c45dab
[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] dcd72ab1c7c19bd793b7c26b2ea1d1aab3a3010552e438f9ffe0fe092ac3c972
[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" "dcd72ab1c7c19bd793b7c26b2ea1d1aab3a3010552e438f9ffe0fe092ac3c972", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling fasthash-sys v0.3.2 (https://github.com/Joshua-Wright/rust-fasthash/?rev=bd0ef9b9391ca80d1a115c3207e1f8417bb4c6b9#bd0ef9b9)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking xoroshiro128 v0.3.0
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking fasthash v0.4.0 (https://github.com/Joshua-Wright/rust-fasthash/?rev=bd0ef9b9391ca80d1a115c3207e1f8417bb4c6b9#bd0ef9b9)
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling mockall_derive v0.7.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking mockall v0.7.1
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking humantime-serde v1.0.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking hardlink-deduplicator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `accessed`
[INFO] [stdout]   --> src/lib/file_entry.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let (size, modified, accessed, created, inode) = fs.metadata(&absolute_path)?;
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accessed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash_to_hex_str`
[INFO] [stdout]   --> src/lib/fast_hash.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn hash_to_hex_str(hash: u128) -> String {
[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: `reload_from_disk`
[INFO] [stdout]   --> src/lib/file_entry.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn reload_from_disk<F: fs::AbstractFs, P1: AsRef<Path>>(&self, fs: &F, base_path: P1) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `relative_folder`
[INFO] [stdout]   --> src/lib/file_entry.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn relative_folder(&self) -> &Path {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `accessed`
[INFO] [stdout]   --> src/lib/file_entry.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let (size, modified, accessed, created, inode) = fs.metadata(&absolute_path)?;
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accessed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reload_from_disk`
[INFO] [stdout]   --> src/lib/file_entry.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn reload_from_disk<F: fs::AbstractFs, P1: AsRef<Path>>(&self, fs: &F, base_path: P1) -> Result<Self> {
[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 1m 22s
[INFO] running `Command { std: "docker" "inspect" "dcd72ab1c7c19bd793b7c26b2ea1d1aab3a3010552e438f9ffe0fe092ac3c972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd72ab1c7c19bd793b7c26b2ea1d1aab3a3010552e438f9ffe0fe092ac3c972", kill_on_drop: false }`
[INFO] [stdout] dcd72ab1c7c19bd793b7c26b2ea1d1aab3a3010552e438f9ffe0fe092ac3c972