[INFO] cloning repository https://github.com/kbacha/hex-escape-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kbacha/hex-escape-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbacha%2Fhex-escape-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbacha%2Fhex-escape-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad3ba57e8468d021269e0130757dcef607399db3
[INFO] testing kbacha/hex-escape-bench against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbacha%2Fhex-escape-bench" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kbacha/hex-escape-bench on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kbacha/hex-escape-bench
[INFO] finished tweaking git repo https://github.com/kbacha/hex-escape-bench
[INFO] tweaked toml for git repo https://github.com/kbacha/hex-escape-bench written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/kbacha/hex-escape-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4434e25818593a4938c5e88db554b7e6ea9e9cdcdef811ddda5dc2a1b73138ab
[INFO] running `Command { std: "docker" "start" "-a" "4434e25818593a4938c5e88db554b7e6ea9e9cdcdef811ddda5dc2a1b73138ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4434e25818593a4938c5e88db554b7e6ea9e9cdcdef811ddda5dc2a1b73138ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4434e25818593a4938c5e88db554b7e6ea9e9cdcdef811ddda5dc2a1b73138ab", kill_on_drop: false }`
[INFO] [stdout] 4434e25818593a4938c5e88db554b7e6ea9e9cdcdef811ddda5dc2a1b73138ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edd761e3f07aa13301bd40d83c023326ae98b0e0ec853e19f4be81296122e886
[INFO] running `Command { std: "docker" "start" "-a" "edd761e3f07aa13301bd40d83c023326ae98b0e0ec853e19f4be81296122e886", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex-escape-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from_utf8_unchecked` that must be used
[INFO] [stdout]   --> src/main.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |             unsafe { std::str::from_utf8_unchecked(&[*b1, *b2]); }
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "edd761e3f07aa13301bd40d83c023326ae98b0e0ec853e19f4be81296122e886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd761e3f07aa13301bd40d83c023326ae98b0e0ec853e19f4be81296122e886", kill_on_drop: false }`
[INFO] [stdout] edd761e3f07aa13301bd40d83c023326ae98b0e0ec853e19f4be81296122e886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08d3c5f893ea04f6f8477214e9b79c7e35e0881991556b40dc9ca45522c0477b
[INFO] running `Command { std: "docker" "start" "-a" "08d3c5f893ea04f6f8477214e9b79c7e35e0881991556b40dc9ca45522c0477b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hex-escape-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from_utf8_unchecked` that must be used
[INFO] [stdout]   --> src/main.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |             unsafe { std::str::from_utf8_unchecked(&[*b1, *b2]); }
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` 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 0.62s
[INFO] running `Command { std: "docker" "inspect" "08d3c5f893ea04f6f8477214e9b79c7e35e0881991556b40dc9ca45522c0477b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d3c5f893ea04f6f8477214e9b79c7e35e0881991556b40dc9ca45522c0477b", kill_on_drop: false }`
[INFO] [stdout] 08d3c5f893ea04f6f8477214e9b79c7e35e0881991556b40dc9ca45522c0477b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 808e4cb2df5ae244573b0048c910deecff197a90fe75026a1a9b0fb2c8de1242
[INFO] running `Command { std: "docker" "start" "-a" "808e4cb2df5ae244573b0048c910deecff197a90fe75026a1a9b0fb2c8de1242", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused return value of `from_utf8_unchecked` that must be used
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:64:22
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 64 |             unsafe { std::str::from_utf8_unchecked(&[*b1, *b2]); }
[INFO] [stdout] 
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hex-escape-bench` (bin "hex-escape-bench" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hex_escape_bench-f6c7b796b590fd24)
[INFO] running `Command { std: "docker" "inspect" "808e4cb2df5ae244573b0048c910deecff197a90fe75026a1a9b0fb2c8de1242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "808e4cb2df5ae244573b0048c910deecff197a90fe75026a1a9b0fb2c8de1242", kill_on_drop: false }`
[INFO] [stdout] 808e4cb2df5ae244573b0048c910deecff197a90fe75026a1a9b0fb2c8de1242