[INFO] cloning repository https://github.com/scphamster/file_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scphamster/file_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscphamster%2Ffile_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscphamster%2Ffile_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 832a6faecb594b8def78f318ca3dad3d48329b07
[INFO] building scphamster/file_reader against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscphamster%2Ffile_reader" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scphamster/file_reader on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scphamster/file_reader
[INFO] finished tweaking git repo https://github.com/scphamster/file_reader
[INFO] tweaked toml for git repo https://github.com/scphamster/file_reader written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/scphamster/file_reader 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 563e8fb6ff306337f8c3412e62440902633ff5b7ef127794f359fb7b4ed1fcc2
[INFO] running `Command { std: "docker" "start" "-a" "563e8fb6ff306337f8c3412e62440902633ff5b7ef127794f359fb7b4ed1fcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "563e8fb6ff306337f8c3412e62440902633ff5b7ef127794f359fb7b4ed1fcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "563e8fb6ff306337f8c3412e62440902633ff5b7ef127794f359fb7b4ed1fcc2", kill_on_drop: false }`
[INFO] [stdout] 563e8fb6ff306337f8c3412e62440902633ff5b7ef127794f359fb7b4ed1fcc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e18f47e6b25fa9ed41a91fa221fe0dd7480eb9f47a7234aef2fafb6b22b4fdcd
[INFO] running `Command { std: "docker" "start" "-a" "e18f47e6b25fa9ed41a91fa221fe0dd7480eb9f47a7234aef2fafb6b22b4fdcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling iana-time-zone v0.1.56
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling chrono v0.4.24
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]    Compiling file_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn check() {}
[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 4.78s
[INFO] running `Command { std: "docker" "inspect" "e18f47e6b25fa9ed41a91fa221fe0dd7480eb9f47a7234aef2fafb6b22b4fdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18f47e6b25fa9ed41a91fa221fe0dd7480eb9f47a7234aef2fafb6b22b4fdcd", kill_on_drop: false }`
[INFO] [stdout] e18f47e6b25fa9ed41a91fa221fe0dd7480eb9f47a7234aef2fafb6b22b4fdcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee2145ff56160f3c40753f69519a1f2ba1ca7d2828ba1bd4b20d0f6b3343d629
[INFO] running `Command { std: "docker" "start" "-a" "ee2145ff56160f3c40753f69519a1f2ba1ca7d2828ba1bd4b20d0f6b3343d629", kill_on_drop: false }`
[INFO] [stderr]    Compiling file_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn check() {}
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "ee2145ff56160f3c40753f69519a1f2ba1ca7d2828ba1bd4b20d0f6b3343d629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2145ff56160f3c40753f69519a1f2ba1ca7d2828ba1bd4b20d0f6b3343d629", kill_on_drop: false }`
[INFO] [stdout] ee2145ff56160f3c40753f69519a1f2ba1ca7d2828ba1bd4b20d0f6b3343d629