[INFO] cloning repository https://github.com/JaniM/stgolf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JaniM/stgolf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Fstgolf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Fstgolf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeb1befec89351206020255731d0ad4344a593a4
[INFO] checking JaniM/stgolf against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaniM%2Fstgolf" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JaniM/stgolf on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JaniM/stgolf
[INFO] finished tweaking git repo https://github.com/JaniM/stgolf
[INFO] tweaked toml for git repo https://github.com/JaniM/stgolf written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JaniM/stgolf 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded derivative v1.0.2
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded syn v0.15.40
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1513c92a7e0956a5a12acef634fd2a61363cc90857f15ebbe261bd93fd0ed35d
[INFO] running `Command { std: "docker" "start" "-a" "1513c92a7e0956a5a12acef634fd2a61363cc90857f15ebbe261bd93fd0ed35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1513c92a7e0956a5a12acef634fd2a61363cc90857f15ebbe261bd93fd0ed35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1513c92a7e0956a5a12acef634fd2a61363cc90857f15ebbe261bd93fd0ed35d", kill_on_drop: false }`
[INFO] [stdout] 1513c92a7e0956a5a12acef634fd2a61363cc90857f15ebbe261bd93fd0ed35d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9ea28eaf537087caa4a4a8822d01914e1fe3e1e9a24a72eaa13ed60d31d77f
[INFO] running `Command { std: "docker" "start" "-a" "ea9ea28eaf537087caa4a4a8822d01914e1fe3e1e9a24a72eaa13ed60d31d77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking stgolf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, slice_patterns)]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, slice_patterns)]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct ExprDecl {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 82 |     name: &'static str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprDecl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct ExprDecl {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 82 |     name: &'static str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExprDecl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "ea9ea28eaf537087caa4a4a8822d01914e1fe3e1e9a24a72eaa13ed60d31d77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9ea28eaf537087caa4a4a8822d01914e1fe3e1e9a24a72eaa13ed60d31d77f", kill_on_drop: false }`
[INFO] [stdout] ea9ea28eaf537087caa4a4a8822d01914e1fe3e1e9a24a72eaa13ed60d31d77f