[INFO] cloning repository https://github.com/twocucao/mipha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twocucao/mipha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 477c38ca9d745054a6b7c4e2bb67171ea21588d7
[INFO] checking twocucao/mipha against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwocucao%2Fmipha" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twocucao/mipha on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twocucao/mipha
[INFO] finished tweaking git repo https://github.com/twocucao/mipha
[INFO] tweaked toml for git repo https://github.com/twocucao/mipha written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/twocucao/mipha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded widestring v0.4.3
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[INFO] [stderr]   Downloaded awc v2.0.1
[INFO] [stderr]   Downloaded rgb v0.8.25
[INFO] [stderr]   Downloaded scroll v0.10.2
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[INFO] [stderr]   Downloaded py-spy v0.3.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12899c8ce43b7b9635506ce2c300cb19ab923aba14a3a5d213326896d909c912
[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" "12899c8ce43b7b9635506ce2c300cb19ab923aba14a3a5d213326896d909c912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12899c8ce43b7b9635506ce2c300cb19ab923aba14a3a5d213326896d909c912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12899c8ce43b7b9635506ce2c300cb19ab923aba14a3a5d213326896d909c912", kill_on_drop: false }`
[INFO] [stdout] 12899c8ce43b7b9635506ce2c300cb19ab923aba14a3a5d213326896d909c912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec13eaf51790e30e24ca521d3b8810f557c84129cfec9b90e697831058f8a88
[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" "4ec13eaf51790e30e24ca521d3b8810f557c84129cfec9b90e697831058f8a88", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.80
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[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling actix-macros v0.1.2
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[INFO] [stderr]    Compiling enum-as-inner v0.3.3
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[INFO] [stderr]     Checking goblin v0.1.3
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[INFO] [stderr]     Checking diesel v1.4.5
[INFO] [stderr]     Checking addr2line v0.11.0
[INFO] [stderr]     Checking actix-rt v1.1.1
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[INFO] [stderr]     Checking mipha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/spy.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn trace(&mut self, pid: i32, sample_rate: u64, trace_line: &str) -> String {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/spy.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut stacktrace = StackTraces {
[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: struct is never constructed: `Tracer`
[INFO] [stdout]   --> src/spy.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Tracer {}
[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: `new`
[INFO] [stdout]   --> src/spy.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `trace`
[INFO] [stdout]   --> src/spy.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn trace(&mut self, pid: i32, sample_rate: u64, trace_line: &str) -> String {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `index`
[INFO] [stdout]  --> src/main.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | async fn index(req: HttpRequest) -> &'static str {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/spy.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn trace(&mut self, pid: i32, sample_rate: u64, trace_line: &str) -> String {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/spy.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut stacktrace = StackTraces {
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/spy.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 12s
[INFO] running `Command { std: "docker" "inspect" "4ec13eaf51790e30e24ca521d3b8810f557c84129cfec9b90e697831058f8a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec13eaf51790e30e24ca521d3b8810f557c84129cfec9b90e697831058f8a88", kill_on_drop: false }`
[INFO] [stdout] 4ec13eaf51790e30e24ca521d3b8810f557c84129cfec9b90e697831058f8a88