[INFO] cloning repository https://github.com/kentnl-rust/ccache_stats_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kentnl-rust/ccache_stats_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentnl-rust%2Fccache_stats_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentnl-rust%2Fccache_stats_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae9e1c7fda8f1a795793897c4169e1bf49e94a78
[INFO] checking kentnl-rust/ccache_stats_reader against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentnl-rust%2Fccache_stats_reader" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kentnl-rust/ccache_stats_reader on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kentnl-rust/ccache_stats_reader
[INFO] finished tweaking git repo https://github.com/kentnl-rust/ccache_stats_reader
[INFO] tweaked toml for git repo https://github.com/kentnl-rust/ccache_stats_reader written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/kentnl-rust/ccache_stats_reader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f79b6f5c630439c82ecc9496efa9f49c7eb5b777534b2f2241407268f1b931ff
[INFO] running `Command { std: "docker" "start" "-a" "f79b6f5c630439c82ecc9496efa9f49c7eb5b777534b2f2241407268f1b931ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f79b6f5c630439c82ecc9496efa9f49c7eb5b777534b2f2241407268f1b931ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79b6f5c630439c82ecc9496efa9f49c7eb5b777534b2f2241407268f1b931ff", kill_on_drop: false }`
[INFO] [stdout] f79b6f5c630439c82ecc9496efa9f49c7eb5b777534b2f2241407268f1b931ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c894c2854d90f3c1d6b7ae19366ac5ec752231fd817cd744ca503fa358db1945
[INFO] running `Command { std: "docker" "start" "-a" "c894c2854d90f3c1d6b7ae19366ac5ec752231fd817cd744ca503fa358db1945", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking ccache_stats_reader v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/cache_field.rs:131:38
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn as_usize(self) -> usize { (self as usize) }
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/cache_field.rs:131:38
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn as_usize(self) -> usize { (self as usize) }
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "c894c2854d90f3c1d6b7ae19366ac5ec752231fd817cd744ca503fa358db1945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c894c2854d90f3c1d6b7ae19366ac5ec752231fd817cd744ca503fa358db1945", kill_on_drop: false }`
[INFO] [stdout] c894c2854d90f3c1d6b7ae19366ac5ec752231fd817cd744ca503fa358db1945