[INFO] cloning repository https://github.com/chiggosVikash/rust_tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chiggosVikash/rust_tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchiggosVikash%2Frust_tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchiggosVikash%2Frust_tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dba87f8d3cf0abeae14e87b6ed6e3837536b9204
[INFO] checking chiggosVikash/rust_tut against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchiggosVikash%2Frust_tut" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chiggosVikash/rust_tut
[INFO] finished tweaking git repo https://github.com/chiggosVikash/rust_tut
[INFO] tweaked toml for git repo https://github.com/chiggosVikash/rust_tut written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chiggosVikash/rust_tut on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chiggosVikash/rust_tut 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fb1d896f495daf862c9938c852429b9f4bb8aa062690696a8be47cc8c631ae7
[INFO] running `Command { std: "docker" "start" "-a" "1fb1d896f495daf862c9938c852429b9f4bb8aa062690696a8be47cc8c631ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fb1d896f495daf862c9938c852429b9f4bb8aa062690696a8be47cc8c631ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb1d896f495daf862c9938c852429b9f4bb8aa062690696a8be47cc8c631ae7", kill_on_drop: false }`
[INFO] [stdout] 1fb1d896f495daf862c9938c852429b9f4bb8aa062690696a8be47cc8c631ae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38f2d2e8a6f4e68cf3cac6a9307ec96e6be934c7b93ee90ebfdc8faf00c250e9
[INFO] running `Command { std: "docker" "start" "-a" "38f2d2e8a6f4e68cf3cac6a9307ec96e6be934c7b93ee90ebfdc8faf00c250e9", kill_on_drop: false }`
[INFO] [stderr]     Checking first_tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `attack` and `defense` are never read
[INFO] [stdout]  --> src/struct_tut.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Player{
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     attack: u64,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     defense: u64,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `attack` and `defense` are never read
[INFO] [stdout]  --> src/struct_tut.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Player{
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     attack: u64,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     defense: u64,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "38f2d2e8a6f4e68cf3cac6a9307ec96e6be934c7b93ee90ebfdc8faf00c250e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38f2d2e8a6f4e68cf3cac6a9307ec96e6be934c7b93ee90ebfdc8faf00c250e9", kill_on_drop: false }`
[INFO] [stdout] 38f2d2e8a6f4e68cf3cac6a9307ec96e6be934c7b93ee90ebfdc8faf00c250e9