[INFO] cloning repository https://github.com/Masterchef365/tiff-concept
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Masterchef365/tiff-concept" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMasterchef365%2Ftiff-concept", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMasterchef365%2Ftiff-concept'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcd4d86666becf7bbc263a4e297e7739efc50de7
[INFO] checking Masterchef365/tiff-concept against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMasterchef365%2Ftiff-concept" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Masterchef365/tiff-concept on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Masterchef365/tiff-concept
[INFO] finished tweaking git repo https://github.com/Masterchef365/tiff-concept
[INFO] tweaked toml for git repo https://github.com/Masterchef365/tiff-concept written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Masterchef365/tiff-concept 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded failure_derive v0.1.5
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded failure v0.1.5
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded backtrace v0.3.38
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aa2585fcf75ec9e1127cd27a731e4945cceb763a4e1cb8804a9fcc844cea7ac
[INFO] running `Command { std: "docker" "start" "-a" "1aa2585fcf75ec9e1127cd27a731e4945cceb763a4e1cb8804a9fcc844cea7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa2585fcf75ec9e1127cd27a731e4945cceb763a4e1cb8804a9fcc844cea7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa2585fcf75ec9e1127cd27a731e4945cceb763a4e1cb8804a9fcc844cea7ac", kill_on_drop: false }`
[INFO] [stdout] 1aa2585fcf75ec9e1127cd27a731e4945cceb763a4e1cb8804a9fcc844cea7ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 701d724a86d59949d747a3a8c3c4cd6c83711827f1ad19e693b66d58b7db04f2
[INFO] running `Command { std: "docker" "start" "-a" "701d724a86d59949d747a3a8c3c4cd6c83711827f1ad19e693b66d58b7db04f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tiffy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `field_conversions::*`
[INFO] [stdout]  --> src/lowlevel/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use field_conversions::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `field_conversions::*`
[INFO] [stdout]  --> src/lowlevel/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use field_conversions::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "701d724a86d59949d747a3a8c3c4cd6c83711827f1ad19e693b66d58b7db04f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701d724a86d59949d747a3a8c3c4cd6c83711827f1ad19e693b66d58b7db04f2", kill_on_drop: false }`
[INFO] [stdout] 701d724a86d59949d747a3a8c3c4cd6c83711827f1ad19e693b66d58b7db04f2