[INFO] cloning repository https://github.com/wa7sa34cx/rust-reference
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wa7sa34cx/rust-reference" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-reference", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-reference'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8b8381a7979ee38d68e7873c8eb2ac672b6f28f
[INFO] checking wa7sa34cx/rust-reference against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-reference" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wa7sa34cx/rust-reference
[INFO] finished tweaking git repo https://github.com/wa7sa34cx/rust-reference
[INFO] tweaked toml for git repo https://github.com/wa7sa34cx/rust-reference written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wa7sa34cx/rust-reference on toolchain 3c75d5844aa65b4aa19243ac44ceda49fe4e61ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wa7sa34cx/rust-reference 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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking wa7sa34cx/rust-reference against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-reference" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wa7sa34cx/rust-reference
[INFO] finished tweaking git repo https://github.com/wa7sa34cx/rust-reference
[INFO] tweaked toml for git repo https://github.com/wa7sa34cx/rust-reference written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wa7sa34cx/rust-reference on toolchain 3c75d5844aa65b4aa19243ac44ceda49fe4e61ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wa7sa34cx/rust-reference 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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fb5ee7a1a230d95657b5dc95ab0908d3662b07dd877424ef17d6b15ec3e6221
[INFO] running `Command { std: "docker" "start" "-a" "2fb5ee7a1a230d95657b5dc95ab0908d3662b07dd877424ef17d6b15ec3e6221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fb5ee7a1a230d95657b5dc95ab0908d3662b07dd877424ef17d6b15ec3e6221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb5ee7a1a230d95657b5dc95ab0908d3662b07dd877424ef17d6b15ec3e6221", kill_on_drop: false }`
[INFO] [stdout] 2fb5ee7a1a230d95657b5dc95ab0908d3662b07dd877424ef17d6b15ec3e6221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dbc31a10e4758ff8dd913183d9dd196342017f43bd3168f667cc13b2c6eee3b
[INFO] running `Command { std: "docker" "start" "-a" "3dbc31a10e4758ff8dd913183d9dd196342017f43bd3168f667cc13b2c6eee3b", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-reference v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/main.rs:6:32
[INFO] [stdout]    |
[INFO] [stdout] 6  |     ($t:tt, $v:tt) => { $t + $v; };
[INFO] [stdout]    |                                ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let x = plus!(5.0, 7.2);
[INFO] [stdout]    |             --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `plus` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/main.rs:6:32
[INFO] [stdout]    |
[INFO] [stdout] 6  |     ($t:tt, $v:tt) => { $t + $v; };
[INFO] [stdout]    |                                ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let x = plus!(5.0, 7.2);
[INFO] [stdout]    |             --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `plus` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unsafe_example` is never used
[INFO] [stdout]   --> src/main.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | async fn unsafe_example(x: &u32) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `x` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct MyStruct {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 39 |     x: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unsafe_example` is never used
[INFO] [stdout]   --> src/main.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | async fn unsafe_example(x: &u32) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `x` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct MyStruct {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 39 |     x: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rust-reference v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3dbc31a10e4758ff8dd913183d9dd196342017f43bd3168f667cc13b2c6eee3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dbc31a10e4758ff8dd913183d9dd196342017f43bd3168f667cc13b2c6eee3b", kill_on_drop: false }`
[INFO] [stdout] 3dbc31a10e4758ff8dd913183d9dd196342017f43bd3168f667cc13b2c6eee3b