[INFO] cloning repository https://github.com/ianic-dev/imglib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ianic-dev/imglib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianic-dev%2Fimglib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianic-dev%2Fimglib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bd9e484708cf604fbd7de74de3b03af2a2608de
[INFO] building ianic-dev/imglib 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%2Fianic-dev%2Fimglib" "/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/ianic-dev/imglib 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/ianic-dev/imglib
[INFO] finished tweaking git repo https://github.com/ianic-dev/imglib
[INFO] tweaked toml for git repo https://github.com/ianic-dev/imglib written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ianic-dev/imglib 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] 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] 87dddc0cfcb1af7d6e20d51dbe14f3f012d689b9403e52186ba1d9e0f88e500e
[INFO] running `Command { std: "docker" "start" "-a" "87dddc0cfcb1af7d6e20d51dbe14f3f012d689b9403e52186ba1d9e0f88e500e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87dddc0cfcb1af7d6e20d51dbe14f3f012d689b9403e52186ba1d9e0f88e500e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87dddc0cfcb1af7d6e20d51dbe14f3f012d689b9403e52186ba1d9e0f88e500e", kill_on_drop: false }`
[INFO] [stdout] 87dddc0cfcb1af7d6e20d51dbe14f3f012d689b9403e52186ba1d9e0f88e500e
[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] 2db648694938b0e80fec9e907790fce7c05778c50ca8982fe78d27f4bbc9628f
[INFO] running `Command { std: "docker" "start" "-a" "2db648694938b0e80fec9e907790fce7c05778c50ca8982fe78d27f4bbc9628f", kill_on_drop: false }`
[INFO] [stderr]    Compiling imglib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/imgbuff.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Grayscale(&mut u8),
[INFO] [stdout]   |               ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 5 ~ pub enum Pixel<'a> {
[INFO] [stdout] 6 ~     Grayscale(&'a mut u8),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/imgbuff.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 |     GrayAlpha([&mut u8; 2]),
[INFO] [stdout]   |                ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 5 ~ pub enum Pixel<'a> {
[INFO] [stdout] 6 |     Grayscale(&mut u8),
[INFO] [stdout] 7 ~     GrayAlpha([&'a mut u8; 2]),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/imgbuff.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Colour([&mut u8; 3]),
[INFO] [stdout]   |             ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 5 ~ pub enum Pixel<'a> {
[INFO] [stdout] 6 |     Grayscale(&mut u8),
[INFO] [stdout] 7 |     GrayAlpha([&mut u8; 2]),
[INFO] [stdout] 8 ~     Colour([&'a mut u8; 3]),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/imgbuff.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ColourAlpha([&mut u8; 4]),
[INFO] [stdout]   |                  ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 5 ~ pub enum Pixel<'a> {
[INFO] [stdout] 6 |     Grayscale(&mut u8),
[INFO] [stdout] 7 |     GrayAlpha([&mut u8; 2]),
[INFO] [stdout] 8 |     Colour([&mut u8; 3]),
[INFO] [stdout] 9 ~     ColourAlpha([&'a mut u8; 4]),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imglib` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "2db648694938b0e80fec9e907790fce7c05778c50ca8982fe78d27f4bbc9628f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db648694938b0e80fec9e907790fce7c05778c50ca8982fe78d27f4bbc9628f", kill_on_drop: false }`
[INFO] [stdout] 2db648694938b0e80fec9e907790fce7c05778c50ca8982fe78d27f4bbc9628f