[INFO] updating cached repository https://github.com/oxalica/nix-cache-mirror
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41bd060bea0a83176a2a8fbb2632bfe7bde8b101
[INFO] checking oxalica/nix-cache-mirror against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foxalica%2Fnix-cache-mirror" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oxalica/nix-cache-mirror on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/oxalica/nix-cache-mirror
[INFO] finished tweaking git repo https://github.com/oxalica/nix-cache-mirror
[INFO] tweaked toml for git repo https://github.com/oxalica/nix-cache-mirror written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/oxalica/nix-cache-mirror already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e483b6723f4aacbf2b3a798cdb2fdf8802dedc46f67205674ae56a4926fb11c
[INFO] running `"docker" "start" "-a" "8e483b6723f4aacbf2b3a798cdb2fdf8802dedc46f67205674ae56a4926fb11c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]     Checking async-macros v2.0.0
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking tokio-executor v0.1.9
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.12
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking async-std v1.2.0
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking rusqlite v0.20.0
[INFO] [stderr]     Checking insta v0.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]     Checking nix-cache-mirror v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/util.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(permits: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `acquire`
[INFO] [stderr]   --> src/util.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn acquire(&self) -> AcquireFuture<'_> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/util.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(permits: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `acquire`
[INFO] [stderr]   --> src/util.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn acquire(&self) -> AcquireFuture<'_> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_raw_channel`
[INFO] [stderr]   --> src/main.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn add_raw_channel() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `serve`
[INFO] [stderr]   --> src/main.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn serve() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_raw_channel`
[INFO] [stderr]   --> src/main.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn add_raw_channel() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `serve`
[INFO] [stderr]   --> src/main.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn serve() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.85s
[INFO] running `"docker" "inspect" "8e483b6723f4aacbf2b3a798cdb2fdf8802dedc46f67205674ae56a4926fb11c"`
[INFO] running `"docker" "rm" "-f" "8e483b6723f4aacbf2b3a798cdb2fdf8802dedc46f67205674ae56a4926fb11c"`
[INFO] [stdout] 8e483b6723f4aacbf2b3a798cdb2fdf8802dedc46f67205674ae56a4926fb11c