[INFO] fetching crate nowo 0.0.3...
[INFO] checking nowo-0.0.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate nowo 0.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate nowo 0.0.3
[INFO] finished tweaking crates.io crate nowo 0.0.3
[INFO] tweaked toml for crates.io crate nowo 0.0.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nowo 0.0.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nowo 0.0.3 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00fc4d7d44e9047eae6a5489ff88cd51d42e71ac7ecb8c0d309b9f3dd59c5618
[INFO] running `Command { std: "docker" "start" "-a" "00fc4d7d44e9047eae6a5489ff88cd51d42e71ac7ecb8c0d309b9f3dd59c5618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00fc4d7d44e9047eae6a5489ff88cd51d42e71ac7ecb8c0d309b9f3dd59c5618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00fc4d7d44e9047eae6a5489ff88cd51d42e71ac7ecb8c0d309b9f3dd59c5618", kill_on_drop: false }`
[INFO] [stdout] 00fc4d7d44e9047eae6a5489ff88cd51d42e71ac7ecb8c0d309b9f3dd59c5618
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0736d9eb6ebcf5759968fbb0ab0ba2032fed5a720c7421d8ca7ac103e8b87726
[INFO] running `Command { std: "docker" "start" "-a" "0736d9eb6ebcf5759968fbb0ab0ba2032fed5a720c7421d8ca7ac103e8b87726", kill_on_drop: false }`
[INFO] [stderr]     Checking nowo v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]  --> src/foo/mode.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct ARange {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     pub end: u32,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ARange` 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: field `end` is never read
[INFO] [stdout]  --> src/foo/mode.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct ARange {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     pub end: u32,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ARange` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "0736d9eb6ebcf5759968fbb0ab0ba2032fed5a720c7421d8ca7ac103e8b87726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0736d9eb6ebcf5759968fbb0ab0ba2032fed5a720c7421d8ca7ac103e8b87726", kill_on_drop: false }`
[INFO] [stdout] 0736d9eb6ebcf5759968fbb0ab0ba2032fed5a720c7421d8ca7ac103e8b87726