[INFO] cloning repository https://github.com/uknowzheng/RustHelloWorld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uknowzheng/RustHelloWorld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuknowzheng%2FRustHelloWorld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuknowzheng%2FRustHelloWorld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ee18a7784d56fd6a8dc7980ba8ef0021e3cdb41
[INFO] testing uknowzheng/RustHelloWorld against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuknowzheng%2FRustHelloWorld" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uknowzheng/RustHelloWorld on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uknowzheng/RustHelloWorld
[INFO] finished tweaking git repo https://github.com/uknowzheng/RustHelloWorld
[INFO] tweaked toml for git repo https://github.com/uknowzheng/RustHelloWorld written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/uknowzheng/RustHelloWorld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52310957f800123376763ae50c2c8b9efeb4bcd52e900bc2ca1c74f402f24ae2
[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" "52310957f800123376763ae50c2c8b9efeb4bcd52e900bc2ca1c74f402f24ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52310957f800123376763ae50c2c8b9efeb4bcd52e900bc2ca1c74f402f24ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52310957f800123376763ae50c2c8b9efeb4bcd52e900bc2ca1c74f402f24ae2", kill_on_drop: false }`
[INFO] [stdout] 52310957f800123376763ae50c2c8b9efeb4bcd52e900bc2ca1c74f402f24ae2
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03d2282fcf049f005cee5ecc8456d36264081ea306adb44a16d61520b1a1addd
[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" "03d2282fcf049f005cee5ecc8456d36264081ea306adb44a16d61520b1a1addd", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/bin/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs, thread};
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03d2282fcf049f005cee5ecc8456d36264081ea306adb44a16d61520b1a1addd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d2282fcf049f005cee5ecc8456d36264081ea306adb44a16d61520b1a1addd", kill_on_drop: false }`
[INFO] [stdout] 03d2282fcf049f005cee5ecc8456d36264081ea306adb44a16d61520b1a1addd
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b648ccef4039dbf519f4153821fa5f0ba5bf868ded427019b7c663a4f12ccbc
[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" "4b648ccef4039dbf519f4153821fa5f0ba5bf868ded427019b7c663a4f12ccbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/bin/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs, thread};
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "4b648ccef4039dbf519f4153821fa5f0ba5bf868ded427019b7c663a4f12ccbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b648ccef4039dbf519f4153821fa5f0ba5bf868ded427019b7c663a4f12ccbc", kill_on_drop: false }`
[INFO] [stdout] 4b648ccef4039dbf519f4153821fa5f0ba5bf868ded427019b7c663a4f12ccbc
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d1588ac1fb51d1659b5a1909df0a2b5d5f139241b67a95e4579d44ed4675a02
[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" "2d1588ac1fb51d1659b5a1909df0a2b5d5f139241b67a95e4579d44ed4675a02", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `thread`
[INFO] [stderr]  --> src/bin/main.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{fs, thread};
[INFO] [stderr]   |               ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello-98db26e46295ab46)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main-589bf3d10f486eb7)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d1588ac1fb51d1659b5a1909df0a2b5d5f139241b67a95e4579d44ed4675a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1588ac1fb51d1659b5a1909df0a2b5d5f139241b67a95e4579d44ed4675a02", kill_on_drop: false }`
[INFO] [stdout] 2d1588ac1fb51d1659b5a1909df0a2b5d5f139241b67a95e4579d44ed4675a02