[INFO] cloning repository https://github.com/MUsmanZahid/helium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MUsmanZahid/helium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMUsmanZahid%2Fhelium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMUsmanZahid%2Fhelium'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b291c537dba82ea509f95d23a95fb3420d393b8
[INFO] building MUsmanZahid/helium 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%2FMUsmanZahid%2Fhelium" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MUsmanZahid/helium 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/MUsmanZahid/helium
[INFO] finished tweaking git repo https://github.com/MUsmanZahid/helium
[INFO] tweaked toml for git repo https://github.com/MUsmanZahid/helium written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MUsmanZahid/helium 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9f8bc408440b644b04b25cd1da074c5e875e7e70f58c48833127b9705f83fa04
[INFO] running `Command { std: "docker" "start" "-a" "9f8bc408440b644b04b25cd1da074c5e875e7e70f58c48833127b9705f83fa04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8bc408440b644b04b25cd1da074c5e875e7e70f58c48833127b9705f83fa04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8bc408440b644b04b25cd1da074c5e875e7e70f58c48833127b9705f83fa04", kill_on_drop: false }`
[INFO] [stdout] 9f8bc408440b644b04b25cd1da074c5e875e7e70f58c48833127b9705f83fa04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f02bb45b5f24e7f8b19bac7d1a26111856b5cb4f27c551a60d8070f47b06aa0e
[INFO] running `Command { std: "docker" "start" "-a" "f02bb45b5f24e7f8b19bac7d1a26111856b5cb4f27c551a60d8070f47b06aa0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling helium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC(u32, u32),
[INFO] [stdout]     |     --------------- ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC((), ()),
[INFO] [stdout]     |                     ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(u8),
[INFO] [stdout]     |     ------------------- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(()),
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f02bb45b5f24e7f8b19bac7d1a26111856b5cb4f27c551a60d8070f47b06aa0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02bb45b5f24e7f8b19bac7d1a26111856b5cb4f27c551a60d8070f47b06aa0e", kill_on_drop: false }`
[INFO] [stdout] f02bb45b5f24e7f8b19bac7d1a26111856b5cb4f27c551a60d8070f47b06aa0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 29bf499dc0f4183ba1cf1cfb65686493e07b1fd666de9d6475c142840c063085
[INFO] running `Command { std: "docker" "start" "-a" "29bf499dc0f4183ba1cf1cfb65686493e07b1fd666de9d6475c142840c063085", kill_on_drop: false }`
[INFO] [stderr]    Compiling helium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC(u32, u32),
[INFO] [stdout]     |     --------------- ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC((), ()),
[INFO] [stdout]     |                     ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(u8),
[INFO] [stdout]     |     ------------------- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(()),
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC(u32, u32),
[INFO] [stdout]     |     --------------- ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 277 |     InvalidChunkCRC((), ()),
[INFO] [stdout]     |                     ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(u8),
[INFO] [stdout]     |     ------------------- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PngError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 285 |     UnsupportedBitDepth(()),
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "29bf499dc0f4183ba1cf1cfb65686493e07b1fd666de9d6475c142840c063085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29bf499dc0f4183ba1cf1cfb65686493e07b1fd666de9d6475c142840c063085", kill_on_drop: false }`
[INFO] [stdout] 29bf499dc0f4183ba1cf1cfb65686493e07b1fd666de9d6475c142840c063085