[INFO] cloning repository https://github.com/psatomas/ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psatomas/ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a892a3aebb57583e7185e0a0ef7cddd26e82219
[INFO] checking psatomas/ownership against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fownership" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/psatomas/ownership
[INFO] finished tweaking git repo https://github.com/psatomas/ownership
[INFO] tweaked toml for git repo https://github.com/psatomas/ownership written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/psatomas/ownership on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/psatomas/ownership 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c94a38ed8bce5b545b353fbb121f335ac171ac527603258d69d26c803ed9dca
[INFO] running `Command { std: "docker" "start" "-a" "1c94a38ed8bce5b545b353fbb121f335ac171ac527603258d69d26c803ed9dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c94a38ed8bce5b545b353fbb121f335ac171ac527603258d69d26c803ed9dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c94a38ed8bce5b545b353fbb121f335ac171ac527603258d69d26c803ed9dca", kill_on_drop: false }`
[INFO] [stdout] 1c94a38ed8bce5b545b353fbb121f335ac171ac527603258d69d26c803ed9dca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 226cf75abe8c48afb4ca1ae4ee72c8b7405b5f30e76f2261f5ef8cc30a9d6131
[INFO] running `Command { std: "docker" "start" "-a" "226cf75abe8c48afb4ca1ae4ee72c8b7405b5f30e76f2261f5ef8cc30a9d6131", kill_on_drop: false }`
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid character '&' in crate name: `string_&string_str_and_&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_integer_reference`
[INFO] [stdout]  --> src/bin/references_and_borrowing.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let my_integer_reference = &my_stack_value;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_integer_reference`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_heap_reference`
[INFO] [stdout]  --> src/bin/references_and_borrowing.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let my_heap_reference = &my_heap_value;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_heap_reference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cake`
[INFO] [stdout]  --> src/bin/return_values_I.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 |    let cake = bake_cake();
[INFO] [stdout]   |        ^^^^ help: if this is intentional, prefix it with an underscore: `_cake`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `genius`
[INFO] [stdout]  --> src/bin/the_clone_method.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let genius = person.clone();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_genius`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ownership` (bin "string_&string_str_and_&str" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `ref1`
[INFO] [stdout]  --> src/bin/mutable_references_restriction.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let ref1 = &mut car;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_ref1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "226cf75abe8c48afb4ca1ae4ee72c8b7405b5f30e76f2261f5ef8cc30a9d6131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "226cf75abe8c48afb4ca1ae4ee72c8b7405b5f30e76f2261f5ef8cc30a9d6131", kill_on_drop: false }`
[INFO] [stdout] 226cf75abe8c48afb4ca1ae4ee72c8b7405b5f30e76f2261f5ef8cc30a9d6131