[INFO] cloning repository https://github.com/afaur/objc-basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/afaur/objc-basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafaur%2Fobjc-basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafaur%2Fobjc-basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1f60457cf43eb5ba68a4af9892334806cf4953e
[INFO] testing afaur/objc-basic against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafaur%2Fobjc-basic" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/afaur/objc-basic on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/afaur/objc-basic
[INFO] finished tweaking git repo https://github.com/afaur/objc-basic
[INFO] tweaked toml for git repo https://github.com/afaur/objc-basic written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/afaur/objc-basic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98618375b252d05107d98a511e72a3474bd6737d1ddbee067d759aba25c461cf
[INFO] running `Command { std: "docker" "start" "-a" "98618375b252d05107d98a511e72a3474bd6737d1ddbee067d759aba25c461cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98618375b252d05107d98a511e72a3474bd6737d1ddbee067d759aba25c461cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98618375b252d05107d98a511e72a3474bd6737d1ddbee067d759aba25c461cf", kill_on_drop: false }`
[INFO] [stdout] 98618375b252d05107d98a511e72a3474bd6737d1ddbee067d759aba25c461cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c58eb22acdd8eda3f6bb708c9a4407570b4020f21548295c5a42bf152a8353a
[INFO] running `Command { std: "docker" "start" "-a" "0c58eb22acdd8eda3f6bb708c9a4407570b4020f21548295c5a42bf152a8353a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.14
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.1
[INFO] [stderr]    Compiling objc-basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `objc::Encode`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use objc::Encode;
[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 1.89s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c58eb22acdd8eda3f6bb708c9a4407570b4020f21548295c5a42bf152a8353a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c58eb22acdd8eda3f6bb708c9a4407570b4020f21548295c5a42bf152a8353a", kill_on_drop: false }`
[INFO] [stdout] 0c58eb22acdd8eda3f6bb708c9a4407570b4020f21548295c5a42bf152a8353a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9925db902f8274f5b65540cb91c576e33ea3255bb60892c9c2d1583f0b620e96
[INFO] running `Command { std: "docker" "start" "-a" "9925db902f8274f5b65540cb91c576e33ea3255bb60892c9c2d1583f0b620e96", kill_on_drop: false }`
[INFO] [stderr]    Compiling objc-basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `objc::Encode`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use objc::Encode;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9925db902f8274f5b65540cb91c576e33ea3255bb60892c9c2d1583f0b620e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9925db902f8274f5b65540cb91c576e33ea3255bb60892c9c2d1583f0b620e96", kill_on_drop: false }`
[INFO] [stdout] 9925db902f8274f5b65540cb91c576e33ea3255bb60892c9c2d1583f0b620e96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9fcc3ab1b83a42e15b643e7f8103cda5a7f8cd88b49aeaff4b1c23630ea074e
[INFO] running `Command { std: "docker" "start" "-a" "f9fcc3ab1b83a42e15b643e7f8103cda5a7f8cd88b49aeaff4b1c23630ea074e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `objc::Encode`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use objc::Encode;
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/objc_basic-e8de74adf92c2ad0)
[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" "f9fcc3ab1b83a42e15b643e7f8103cda5a7f8cd88b49aeaff4b1c23630ea074e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9fcc3ab1b83a42e15b643e7f8103cda5a7f8cd88b49aeaff4b1c23630ea074e", kill_on_drop: false }`
[INFO] [stdout] f9fcc3ab1b83a42e15b643e7f8103cda5a7f8cd88b49aeaff4b1c23630ea074e