[INFO] cloning repository https://github.com/dc25/rust_vec_dyn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dc25/rust_vec_dyn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdc25%2Frust_vec_dyn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdc25%2Frust_vec_dyn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9708acc887fc5827fe866bed9b47d22fe1ce61ba
[INFO] checking dc25/rust_vec_dyn against master#e43d139a82620a268d3828a73e12a8679339e8f8 for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdc25%2Frust_vec_dyn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dc25/rust_vec_dyn
[INFO] finished tweaking git repo https://github.com/dc25/rust_vec_dyn
[INFO] tweaked toml for git repo https://github.com/dc25/rust_vec_dyn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dc25/rust_vec_dyn on toolchain e43d139a82620a268d3828a73e12a8679339e8f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e43d139a82620a268d3828a73e12a8679339e8f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dc25/rust_vec_dyn 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" "+e43d139a82620a268d3828a73e12a8679339e8f8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+e43d139a82620a268d3828a73e12a8679339e8f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c0811384f25dbd0c5a6c591126c5fe6510e78894b40ecc1dcfdd358420e0a89
[INFO] running `Command { std: "docker" "start" "-a" "2c0811384f25dbd0c5a6c591126c5fe6510e78894b40ecc1dcfdd358420e0a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0811384f25dbd0c5a6c591126c5fe6510e78894b40ecc1dcfdd358420e0a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0811384f25dbd0c5a6c591126c5fe6510e78894b40ecc1dcfdd358420e0a89", kill_on_drop: false }`
[INFO] [stdout] 2c0811384f25dbd0c5a6c591126c5fe6510e78894b40ecc1dcfdd358420e0a89
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+e43d139a82620a268d3828a73e12a8679339e8f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f027ba5919f0776948c343ca64c083afb1a967319f6e3cf4e8a1748c129ea65c
[INFO] running `Command { std: "docker" "start" "-a" "f027ba5919f0776948c343ca64c083afb1a967319f6e3cf4e8a1748c129ea65c", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_dyn_experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `foo` is never read
[INFO] [stdout]   --> src/main.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Matrix {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 12 |     foo: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matrix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bar` is never read
[INFO] [stdout]   --> src/main.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Material {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 17 |     bar: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Material` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `foo` is never read
[INFO] [stdout]   --> src/main.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Matrix {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 12 |     foo: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matrix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bar` is never read
[INFO] [stdout]   --> src/main.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Material {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 17 |     bar: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Material` 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 0.11s
[INFO] running `Command { std: "docker" "inspect" "f027ba5919f0776948c343ca64c083afb1a967319f6e3cf4e8a1748c129ea65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f027ba5919f0776948c343ca64c083afb1a967319f6e3cf4e8a1748c129ea65c", kill_on_drop: false }`
[INFO] [stdout] f027ba5919f0776948c343ca64c083afb1a967319f6e3cf4e8a1748c129ea65c