[INFO] cloning repository https://github.com/roesnera/rust_structs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roesnera/rust_structs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_structs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_structs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7553c0d4548a6781d2a3ac05adf7a1ab9341e42c
[INFO] checking roesnera/rust_structs against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_structs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/roesnera/rust_structs
[INFO] finished tweaking git repo https://github.com/roesnera/rust_structs
[INFO] tweaked toml for git repo https://github.com/roesnera/rust_structs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/roesnera/rust_structs on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/roesnera/rust_structs 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "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 roesnera/rust_structs against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froesnera%2Frust_structs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/roesnera/rust_structs
[INFO] finished tweaking git repo https://github.com/roesnera/rust_structs
[INFO] tweaked toml for git repo https://github.com/roesnera/rust_structs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/roesnera/rust_structs on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/roesnera/rust_structs 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44b7cbd34b6f70d1a4f1998c0821ef9988bfe446f10ecca0b5e91903376a5910
[INFO] running `Command { std: "docker" "start" "-a" "44b7cbd34b6f70d1a4f1998c0821ef9988bfe446f10ecca0b5e91903376a5910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44b7cbd34b6f70d1a4f1998c0821ef9988bfe446f10ecca0b5e91903376a5910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b7cbd34b6f70d1a4f1998c0821ef9988bfe446f10ecca0b5e91903376a5910", kill_on_drop: false }`
[INFO] [stdout] 44b7cbd34b6f70d1a4f1998c0821ef9988bfe446f10ecca0b5e91903376a5910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46136b38a7119fa125fc8a40d691cad311c8b2587a6f84e1cea88f81e062e773
[INFO] running `Command { std: "docker" "start" "-a" "46136b38a7119fa125fc8a40d691cad311c8b2587a6f84e1cea88f81e062e773", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_structs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:103:14
[INFO] [stdout]     |
[INFO] [stdout] 103 | struct Point(i32, i32);
[INFO] [stdout]     |        ----- ^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 103 - struct Point(i32, i32);
[INFO] [stdout] 103 + struct Point((), i32);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:103:14
[INFO] [stdout]     |
[INFO] [stdout] 103 | struct Point(i32, i32);
[INFO] [stdout]     |        ----- ^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 103 - struct Point(i32, i32);
[INFO] [stdout] 103 + struct Point((), i32);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "46136b38a7119fa125fc8a40d691cad311c8b2587a6f84e1cea88f81e062e773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46136b38a7119fa125fc8a40d691cad311c8b2587a6f84e1cea88f81e062e773", kill_on_drop: false }`
[INFO] [stdout] 46136b38a7119fa125fc8a40d691cad311c8b2587a6f84e1cea88f81e062e773