[INFO] cloning repository https://github.com/kan-proj/kan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kan-proj/kan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkan-proj%2Fkan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkan-proj%2Fkan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 575dd9d1dfb7b438d1e650e8d7660dba9281b42c
[INFO] building kan-proj/kan 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%2Fkan-proj%2Fkan" "/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/kan-proj/kan 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/kan-proj/kan
[INFO] finished tweaking git repo https://github.com/kan-proj/kan
[INFO] tweaked toml for git repo https://github.com/kan-proj/kan written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kan-proj/kan 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]  Downloading crates ...
[INFO] [stderr]   Downloaded flatbuffers v22.12.6
[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] 098af453e7186f6d05777ebc15c69f721a932dd99a5de779dfecf58384b27f9d
[INFO] running `Command { std: "docker" "start" "-a" "098af453e7186f6d05777ebc15c69f721a932dd99a5de779dfecf58384b27f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "098af453e7186f6d05777ebc15c69f721a932dd99a5de779dfecf58384b27f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098af453e7186f6d05777ebc15c69f721a932dd99a5de779dfecf58384b27f9d", kill_on_drop: false }`
[INFO] [stdout] 098af453e7186f6d05777ebc15c69f721a932dd99a5de779dfecf58384b27f9d
[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] c83296f030d3fb9ffa3b1cbe73dcaf13d282235356561e203d856361b1524893
[INFO] running `Command { std: "docker" "start" "-a" "c83296f030d3fb9ffa3b1cbe73dcaf13d282235356561e203d856361b1524893", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling flatbuffers v22.12.6
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling kan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `objects` is never read
[INFO] [stdout]  --> src/meta.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Metagraph<'a, O: ?Sized> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 3 |     objects: Vec<&'a O>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Metagraph` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `Command { std: "docker" "inspect" "c83296f030d3fb9ffa3b1cbe73dcaf13d282235356561e203d856361b1524893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83296f030d3fb9ffa3b1cbe73dcaf13d282235356561e203d856361b1524893", kill_on_drop: false }`
[INFO] [stdout] c83296f030d3fb9ffa3b1cbe73dcaf13d282235356561e203d856361b1524893
[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] bbbb069789f6d0ec90147ff287b06054b2add15c6c698edc633821a44b8c0034
[INFO] running `Command { std: "docker" "start" "-a" "bbbb069789f6d0ec90147ff287b06054b2add15c6c698edc633821a44b8c0034", kill_on_drop: false }`
[INFO] [stderr]    Compiling kan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `objects` is never read
[INFO] [stdout]  --> src/meta.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Metagraph<'a, O: ?Sized> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 3 |     objects: Vec<&'a O>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Metagraph` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DateTime`
[INFO] [stdout]  --> src/file/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use chrono::{DateTime, Utc};
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::array`
[INFO] [stdout]   --> src/file/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use std::array;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/file/mod.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let m = Content::create(
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]   --> src/file/mod.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let version = project_file.version();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ops`
[INFO] [stdout]   --> src/file/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let ops = project_file.operations();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "bbbb069789f6d0ec90147ff287b06054b2add15c6c698edc633821a44b8c0034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbb069789f6d0ec90147ff287b06054b2add15c6c698edc633821a44b8c0034", kill_on_drop: false }`
[INFO] [stdout] bbbb069789f6d0ec90147ff287b06054b2add15c6c698edc633821a44b8c0034