[INFO] cloning repository https://github.com/zaytsev/idea-rust-nix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zaytsev/idea-rust-nix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaytsev%2Fidea-rust-nix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaytsev%2Fidea-rust-nix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e50eaebf06fcebf65111213acf3dd84b9adbe5ce
[INFO] testing zaytsev/idea-rust-nix against try#c3758fdc4730d7700b25a13cccff296a08f42c00 for pr-91743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaytsev%2Fidea-rust-nix" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zaytsev/idea-rust-nix on toolchain c3758fdc4730d7700b25a13cccff296a08f42c00
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zaytsev/idea-rust-nix
[INFO] finished tweaking git repo https://github.com/zaytsev/idea-rust-nix
[INFO] tweaked toml for git repo https://github.com/zaytsev/idea-rust-nix written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/zaytsev/idea-rust-nix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b710d1c5b68f3de66d9e5d8cabd2c0b6077d074db632b564efe000c1d0ee643b
[INFO] running `Command { std: "docker" "start" "-a" "b710d1c5b68f3de66d9e5d8cabd2c0b6077d074db632b564efe000c1d0ee643b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b710d1c5b68f3de66d9e5d8cabd2c0b6077d074db632b564efe000c1d0ee643b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b710d1c5b68f3de66d9e5d8cabd2c0b6077d074db632b564efe000c1d0ee643b", kill_on_drop: false }`
[INFO] [stdout] b710d1c5b68f3de66d9e5d8cabd2c0b6077d074db632b564efe000c1d0ee643b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58092cbd733bb0ca4c097a6f25373415edd8900d2c32fbc6649499e9e3649ac9
[INFO] running `Command { std: "docker" "start" "-a" "58092cbd733bb0ca4c097a6f25373415edd8900d2c32fbc6649499e9e3649ac9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nixdemoapp1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `MyResult`
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | type MyResult<T, E> = Result<T, E>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `myfn1`
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn myfn1() -> MyResult<String, String> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "58092cbd733bb0ca4c097a6f25373415edd8900d2c32fbc6649499e9e3649ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58092cbd733bb0ca4c097a6f25373415edd8900d2c32fbc6649499e9e3649ac9", kill_on_drop: false }`
[INFO] [stdout] 58092cbd733bb0ca4c097a6f25373415edd8900d2c32fbc6649499e9e3649ac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 227f0a19bb29b253225603fbae8f22b5d512a02962c77e48429b2be6cd1502f2
[INFO] running `Command { std: "docker" "start" "-a" "227f0a19bb29b253225603fbae8f22b5d512a02962c77e48429b2be6cd1502f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling nixdemoapp1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `MyResult`
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | type MyResult<T, E> = Result<T, E>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `myfn1`
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn myfn1() -> MyResult<String, String> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/nixdemoapp1-af5f98687bb72ff5)
[INFO] running `Command { std: "docker" "inspect" "227f0a19bb29b253225603fbae8f22b5d512a02962c77e48429b2be6cd1502f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227f0a19bb29b253225603fbae8f22b5d512a02962c77e48429b2be6cd1502f2", kill_on_drop: false }`
[INFO] [stdout] 227f0a19bb29b253225603fbae8f22b5d512a02962c77e48429b2be6cd1502f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c36cbe5eaa4c0d613d1e97087e4e1c825df09dcf200d859886c79f35ae1a5c7e
[INFO] running `Command { std: "docker" "start" "-a" "c36cbe5eaa4c0d613d1e97087e4e1c825df09dcf200d859886c79f35ae1a5c7e", kill_on_drop: false }`
[INFO] [stderr] warning: type alias is never used: `MyResult`
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | type MyResult<T, E> = Result<T, E>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `myfn1`
[INFO] [stderr]  --> src/main.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn myfn1() -> MyResult<String, String> {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `nixdemoapp1` (bin "nixdemoapp1" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nixdemoapp1-af5f98687bb72ff5)
[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" "c36cbe5eaa4c0d613d1e97087e4e1c825df09dcf200d859886c79f35ae1a5c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36cbe5eaa4c0d613d1e97087e4e1c825df09dcf200d859886c79f35ae1a5c7e", kill_on_drop: false }`
[INFO] [stdout] c36cbe5eaa4c0d613d1e97087e4e1c825df09dcf200d859886c79f35ae1a5c7e