[INFO] fetching crate test_for_zeven 0.1.0...
[INFO] building test_for_zeven-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate test_for_zeven 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate test_for_zeven 0.1.0
[INFO] finished tweaking crates.io crate test_for_zeven 0.1.0
[INFO] tweaked toml for crates.io crate test_for_zeven 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate test_for_zeven 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate test_for_zeven 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2031a9ccdd43723eede448ebec6dd749733e17ad5c02c6156c5f4469cacada4c
[INFO] running `Command { std: "docker" "start" "-a" "2031a9ccdd43723eede448ebec6dd749733e17ad5c02c6156c5f4469cacada4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2031a9ccdd43723eede448ebec6dd749733e17ad5c02c6156c5f4469cacada4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2031a9ccdd43723eede448ebec6dd749733e17ad5c02c6156c5f4469cacada4c", kill_on_drop: false }`
[INFO] [stdout] 2031a9ccdd43723eede448ebec6dd749733e17ad5c02c6156c5f4469cacada4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7c26a1ed00bd0ab8ac3491c21ca54cd0cf195558e89b85f5417206632cfe272
[INFO] running `Command { std: "docker" "start" "-a" "a7c26a1ed00bd0ab8ac3491c21ca54cd0cf195558e89b85f5417206632cfe272", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_for_zeven v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "a7c26a1ed00bd0ab8ac3491c21ca54cd0cf195558e89b85f5417206632cfe272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c26a1ed00bd0ab8ac3491c21ca54cd0cf195558e89b85f5417206632cfe272", kill_on_drop: false }`
[INFO] [stdout] a7c26a1ed00bd0ab8ac3491c21ca54cd0cf195558e89b85f5417206632cfe272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6042cc14bdfad66c4592e9e78e67af4f8ec8c41006a07084487088f3eeb19ac
[INFO] running `Command { std: "docker" "start" "-a" "f6042cc14bdfad66c4592e9e78e67af4f8ec8c41006a07084487088f3eeb19ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_for_zeven v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/lib.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     use std::thread;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]    --> src/lib.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use std::time::Duration;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sss` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     struct sss{
[INFO] [stdout]     |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Sss`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lib.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let s = sss{
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f6042cc14bdfad66c4592e9e78e67af4f8ec8c41006a07084487088f3eeb19ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6042cc14bdfad66c4592e9e78e67af4f8ec8c41006a07084487088f3eeb19ac", kill_on_drop: false }`
[INFO] [stdout] f6042cc14bdfad66c4592e9e78e67af4f8ec8c41006a07084487088f3eeb19ac