[INFO] cloning repository https://github.com/edwestfieldjr/deck_redux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edwestfieldjr/deck_redux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwestfieldjr%2Fdeck_redux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwestfieldjr%2Fdeck_redux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1523496ff4ac85e8f933965dde36d603aaa28f67
[INFO] checking edwestfieldjr/deck_redux against try#b8ee37b59c6e1f39bae18b85e057975ab0d89308 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedwestfieldjr%2Fdeck_redux" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edwestfieldjr/deck_redux on toolchain b8ee37b59c6e1f39bae18b85e057975ab0d89308
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/edwestfieldjr/deck_redux
[INFO] finished tweaking git repo https://github.com/edwestfieldjr/deck_redux
[INFO] tweaked toml for git repo https://github.com/edwestfieldjr/deck_redux written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/edwestfieldjr/deck_redux 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" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a6020bf706f5a0b114500957a7a16760b5a579743db94fdb8241ec2c896a041
[INFO] running `Command { std: "docker" "start" "-a" "6a6020bf706f5a0b114500957a7a16760b5a579743db94fdb8241ec2c896a041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a6020bf706f5a0b114500957a7a16760b5a579743db94fdb8241ec2c896a041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6020bf706f5a0b114500957a7a16760b5a579743db94fdb8241ec2c896a041", kill_on_drop: false }`
[INFO] [stdout] 6a6020bf706f5a0b114500957a7a16760b5a579743db94fdb8241ec2c896a041
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6c218b4cc11a666efaedabc7b273088fd1ee7890fe21fe2aa25dfd9cb7e2ee1
[INFO] running `Command { std: "docker" "start" "-a" "e6c218b4cc11a666efaedabc7b273088fd1ee7890fe21fe2aa25dfd9cb7e2ee1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking deck_redux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `len` and `is_empty` are never used
[INFO] [stdout]    --> src/deck.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 88  | impl<'a> Deck<'a> {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `len` and `is_empty` are never used
[INFO] [stdout]    --> src/deck.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 88  | impl<'a> Deck<'a> {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "e6c218b4cc11a666efaedabc7b273088fd1ee7890fe21fe2aa25dfd9cb7e2ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c218b4cc11a666efaedabc7b273088fd1ee7890fe21fe2aa25dfd9cb7e2ee1", kill_on_drop: false }`
[INFO] [stdout] e6c218b4cc11a666efaedabc7b273088fd1ee7890fe21fe2aa25dfd9cb7e2ee1