[INFO] fetching crate discreet 0.1.0...
[INFO] checking discreet-0.1.0 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate discreet 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate discreet 0.1.0
[INFO] finished tweaking crates.io crate discreet 0.1.0
[INFO] tweaked toml for crates.io crate discreet 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate discreet 0.1.0 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate discreet 0.1.0 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" "+38c2997544af84fe301d600d6896397738163002" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cee822eede90296ea026ca09412ab38ab04e78b3cb9ec6c73e2f023d1f3b3b63
[INFO] running `Command { std: "docker" "start" "-a" "cee822eede90296ea026ca09412ab38ab04e78b3cb9ec6c73e2f023d1f3b3b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cee822eede90296ea026ca09412ab38ab04e78b3cb9ec6c73e2f023d1f3b3b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee822eede90296ea026ca09412ab38ab04e78b3cb9ec6c73e2f023d1f3b3b63", kill_on_drop: false }`
[INFO] [stdout] cee822eede90296ea026ca09412ab38ab04e78b3cb9ec6c73e2f023d1f3b3b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb7e8021b995b7f9526bf2a4a14519a740039a4eb5419a0a3778eaf2078e221d
[INFO] running `Command { std: "docker" "start" "-a" "bb7e8021b995b7f9526bf2a4a14519a740039a4eb5419a0a3778eaf2078e221d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling discreet-common v0.1.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling discreet-macros v0.1.0
[INFO] [stderr]     Checking discreet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `progress` and `grid` are never read
[INFO] [stdout]  --> src/finite_diff_2d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FiniteDiffMethod2D<Stencil: FiniteDifferenceStencil2D> {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 4 |     progress: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     grid: Vec<f64>,
[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 `progress` and `grid` are never read
[INFO] [stdout]  --> src/finite_diff_2d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FiniteDiffMethod2D<Stencil: FiniteDifferenceStencil2D> {
[INFO] [stdout]   |            ------------------ fields in this struct
[INFO] [stdout] 4 |     progress: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 5 |     grid: Vec<f64>,
[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 5.13s
[INFO] running `Command { std: "docker" "inspect" "bb7e8021b995b7f9526bf2a4a14519a740039a4eb5419a0a3778eaf2078e221d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb7e8021b995b7f9526bf2a4a14519a740039a4eb5419a0a3778eaf2078e221d", kill_on_drop: false }`
[INFO] [stdout] bb7e8021b995b7f9526bf2a4a14519a740039a4eb5419a0a3778eaf2078e221d