[INFO] fetching crate rust_study0 0.1.1...
[INFO] checking rust_study0-0.1.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rust_study0 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rust_study0 0.1.1
[INFO] finished tweaking crates.io crate rust_study0 0.1.1
[INFO] tweaked toml for crates.io crate rust_study0 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_study0 0.1.1 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 rust_study0 0.1.1 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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8d1c3b86ca23b41339dc0e18f421edc878dc76d1b0253efdf2acf7a35dd95da
[INFO] running `Command { std: "docker" "start" "-a" "d8d1c3b86ca23b41339dc0e18f421edc878dc76d1b0253efdf2acf7a35dd95da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8d1c3b86ca23b41339dc0e18f421edc878dc76d1b0253efdf2acf7a35dd95da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d1c3b86ca23b41339dc0e18f421edc878dc76d1b0253efdf2acf7a35dd95da", kill_on_drop: false }`
[INFO] [stdout] d8d1c3b86ca23b41339dc0e18f421edc878dc76d1b0253efdf2acf7a35dd95da
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3b08972b0483649028038b8d82ef3090030778b3aa6953ae93bdb9f0d5fe145
[INFO] running `Command { std: "docker" "start" "-a" "e3b08972b0483649028038b8d82ef3090030778b3aa6953ae93bdb9f0d5fe145", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rust_study0 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/lib.rs:206:18
[INFO] [stdout]     |
[INFO] [stdout] 206 |     struct Color(i32, i32, i32);
[INFO] [stdout]     |            ----- ^^^  ^^^  ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/lib.rs:207:20
[INFO] [stdout]     |
[INFO] [stdout] 207 |     struct Point3D(i32, i32, i32);
[INFO] [stdout]     |            ------- ^^^  ^^^  ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |     struct Device {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 352 |         addr: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Device` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/lib.rs:206:18
[INFO] [stdout]     |
[INFO] [stdout] 206 |     struct Color(i32, i32, i32);
[INFO] [stdout]     |            ----- ^^^  ^^^  ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/lib.rs:207:20
[INFO] [stdout]     |
[INFO] [stdout] 207 |     struct Point3D(i32, i32, i32);
[INFO] [stdout]     |            ------- ^^^  ^^^  ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |     struct Device {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 352 |         addr: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Device` 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 2.64s
[INFO] running `Command { std: "docker" "inspect" "e3b08972b0483649028038b8d82ef3090030778b3aa6953ae93bdb9f0d5fe145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b08972b0483649028038b8d82ef3090030778b3aa6953ae93bdb9f0d5fe145", kill_on_drop: false }`
[INFO] [stdout] e3b08972b0483649028038b8d82ef3090030778b3aa6953ae93bdb9f0d5fe145