[INFO] cloning repository https://github.com/tusan-tsvetkoff/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tusan-tsvetkoff/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftusan-tsvetkoff%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftusan-tsvetkoff%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cfaab719bcca72e927c903f203c5fc923529efb
[INFO] building tusan-tsvetkoff/pngme 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%2Ftusan-tsvetkoff%2Fpngme" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tusan-tsvetkoff/pngme 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/tusan-tsvetkoff/pngme
[INFO] finished tweaking git repo https://github.com/tusan-tsvetkoff/pngme
[INFO] tweaked toml for git repo https://github.com/tusan-tsvetkoff/pngme written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tusan-tsvetkoff/pngme 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5ce94d6950900f61cee56d46cece8aa0698b485d8c330bec420ce02c5a805aa9
[INFO] running `Command { std: "docker" "start" "-a" "5ce94d6950900f61cee56d46cece8aa0698b485d8c330bec420ce02c5a805aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ce94d6950900f61cee56d46cece8aa0698b485d8c330bec420ce02c5a805aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ce94d6950900f61cee56d46cece8aa0698b485d8c330bec420ce02c5a805aa9", kill_on_drop: false }`
[INFO] [stdout] 5ce94d6950900f61cee56d46cece8aa0698b485d8c330bec420ce02c5a805aa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 670a0749be095bb90019153adbabb2b2b0f5fdece03f8a914a6d26462b36e45d
[INFO] running `Command { std: "docker" "start" "-a" "670a0749be095bb90019153adbabb2b2b0f5fdece03f8a914a6d26462b36e45d", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::write`
[INFO] [stdout]  --> src/chunk_type.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `convert::TryInto` and `io`
[INFO] [stdout]  --> src/chunk_type.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{convert::TryInto, io};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/chunk_type.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{anyhow, bail};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chunk`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let chunk = ChunkType::from_str("Rust").unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chunk`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]   --> src/chunk_type.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Type {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `valid_bit` and `position` are never used
[INFO] [stdout]   --> src/chunk_type.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Type {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 20 |     fn valid_bit(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn position(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_safe_to_copy` and `is_valid` are never used
[INFO] [stdout]   --> src/chunk_type.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl ChunkType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "670a0749be095bb90019153adbabb2b2b0f5fdece03f8a914a6d26462b36e45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670a0749be095bb90019153adbabb2b2b0f5fdece03f8a914a6d26462b36e45d", kill_on_drop: false }`
[INFO] [stdout] 670a0749be095bb90019153adbabb2b2b0f5fdece03f8a914a6d26462b36e45d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3e74d2ac73183b84d630245af4c3c37c8ec9eb4cae95f8bf66c8ee7b10cddb8a
[INFO] running `Command { std: "docker" "start" "-a" "3e74d2ac73183b84d630245af4c3c37c8ec9eb4cae95f8bf66c8ee7b10cddb8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::write`
[INFO] [stdout]  --> src/chunk_type.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `convert::TryInto` and `io`
[INFO] [stdout]  --> src/chunk_type.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{convert::TryInto, io};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/chunk_type.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::{anyhow, bail};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chunk`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let chunk = ChunkType::from_str("Rust").unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chunk`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]   --> src/chunk_type.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Type {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `valid_bit` and `position` are never used
[INFO] [stdout]   --> src/chunk_type.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Type {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 20 |     fn valid_bit(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn position(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "3e74d2ac73183b84d630245af4c3c37c8ec9eb4cae95f8bf66c8ee7b10cddb8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e74d2ac73183b84d630245af4c3c37c8ec9eb4cae95f8bf66c8ee7b10cddb8a", kill_on_drop: false }`
[INFO] [stdout] 3e74d2ac73183b84d630245af4c3c37c8ec9eb4cae95f8bf66c8ee7b10cddb8a