[INFO] fetching crate vingt-et-un 0.1.1...
[INFO] building vingt-et-un-0.1.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate vingt-et-un 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate vingt-et-un 0.1.1
[INFO] finished tweaking crates.io crate vingt-et-un 0.1.1
[INFO] tweaked toml for crates.io crate vingt-et-un 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vingt-et-un 0.1.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vingt-et-un 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8086f54828513c8fa77fdd9e30d0e7dcd6a9ed7f90a4bf498137eed740da6f49
[INFO] running `Command { std: "docker" "start" "-a" "8086f54828513c8fa77fdd9e30d0e7dcd6a9ed7f90a4bf498137eed740da6f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8086f54828513c8fa77fdd9e30d0e7dcd6a9ed7f90a4bf498137eed740da6f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8086f54828513c8fa77fdd9e30d0e7dcd6a9ed7f90a4bf498137eed740da6f49", kill_on_drop: false }`
[INFO] [stdout] 8086f54828513c8fa77fdd9e30d0e7dcd6a9ed7f90a4bf498137eed740da6f49
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fc76aa32a97909d59bb1facc9230ffd8c7fe3b4cdeb1c6554891bd4cffa8923
[INFO] running `Command { std: "docker" "start" "-a" "3fc76aa32a97909d59bb1facc9230ffd8c7fe3b4cdeb1c6554891bd4cffa8923", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling vingt-et-un v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `CustomShoe` is never constructed
[INFO] [stdout]   --> src/shoe.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) struct CustomShoe {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/shoe.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl CustomShoe {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 52 |     pub fn new(deck: Vec<u8>) -> Box<CustomShoe> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.37s
[INFO] running `Command { std: "docker" "inspect" "3fc76aa32a97909d59bb1facc9230ffd8c7fe3b4cdeb1c6554891bd4cffa8923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fc76aa32a97909d59bb1facc9230ffd8c7fe3b4cdeb1c6554891bd4cffa8923", kill_on_drop: false }`
[INFO] [stdout] 3fc76aa32a97909d59bb1facc9230ffd8c7fe3b4cdeb1c6554891bd4cffa8923
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eaa8b677068da48a3aaf99fa20f39cf121008fa7e97723eea3e60b2f0d582ba
[INFO] running `Command { std: "docker" "start" "-a" "1eaa8b677068da48a3aaf99fa20f39cf121008fa7e97723eea3e60b2f0d582ba", kill_on_drop: false }`
[INFO] [stdout] warning: struct `CustomShoe` is never constructed
[INFO] [stdout]   --> src/shoe.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) struct CustomShoe {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vingt-et-un v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/shoe.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl CustomShoe {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 52 |     pub fn new(deck: Vec<u8>) -> Box<CustomShoe> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "1eaa8b677068da48a3aaf99fa20f39cf121008fa7e97723eea3e60b2f0d582ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eaa8b677068da48a3aaf99fa20f39cf121008fa7e97723eea3e60b2f0d582ba", kill_on_drop: false }`
[INFO] [stdout] 1eaa8b677068da48a3aaf99fa20f39cf121008fa7e97723eea3e60b2f0d582ba