[INFO] cloning repository https://github.com/PSeitz/rust_stack_string
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PSeitz/rust_stack_string" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPSeitz%2Frust_stack_string", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPSeitz%2Frust_stack_string'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 836227b1ef21324a85a2671b179cbd4be1ec9726
[INFO] checking PSeitz/rust_stack_string against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPSeitz%2Frust_stack_string" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PSeitz/rust_stack_string
[INFO] finished tweaking git repo https://github.com/PSeitz/rust_stack_string
[INFO] tweaked toml for git repo https://github.com/PSeitz/rust_stack_string written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PSeitz/rust_stack_string on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PSeitz/rust_stack_string already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc4f6425635964f92657905964a68829f85e9ac2e6c32264bdfeeafe693ed8b5
[INFO] running `Command { std: "docker" "start" "-a" "dc4f6425635964f92657905964a68829f85e9ac2e6c32264bdfeeafe693ed8b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4f6425635964f92657905964a68829f85e9ac2e6c32264bdfeeafe693ed8b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4f6425635964f92657905964a68829f85e9ac2e6c32264bdfeeafe693ed8b5", kill_on_drop: false }`
[INFO] [stdout] dc4f6425635964f92657905964a68829f85e9ac2e6c32264bdfeeafe693ed8b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00f273d0c4f2c2decfe810cbfa9fc15afa9c0c67d683e7d536db89be6c7cf347
[INFO] running `Command { std: "docker" "start" "-a" "00f273d0c4f2c2decfe810cbfa9fc15afa9c0c67d683e7d536db89be6c7cf347", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_stack_string_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `field1`, `field2`, `some_num`, and `field3` are never read
[INFO] [stdout]   --> benches/bench.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct MyComplexStruct {
[INFO] [stdout]    |        --------------- fields in this struct
[INFO] [stdout] 10 |     pub field1: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 11 |     pub field2: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 12 |     pub some_num: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 13 |     pub field3: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field1`, `field2`, `some_num`, and `field3` are never read
[INFO] [stdout]   --> benches/bench.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct MyComplexStructStack {
[INFO] [stdout]    |        -------------------- fields in this struct
[INFO] [stdout] 17 |     pub field1: StackString20,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 18 |     pub field2: StackString20,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 19 |     pub some_num: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 20 |     pub field3: StackString20,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "00f273d0c4f2c2decfe810cbfa9fc15afa9c0c67d683e7d536db89be6c7cf347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f273d0c4f2c2decfe810cbfa9fc15afa9c0c67d683e7d536db89be6c7cf347", kill_on_drop: false }`
[INFO] [stdout] 00f273d0c4f2c2decfe810cbfa9fc15afa9c0c67d683e7d536db89be6c7cf347
