[INFO] cloning repository https://github.com/mix-blockchain/mix-base
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mix-blockchain/mix-base" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmix-blockchain%2Fmix-base", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmix-blockchain%2Fmix-base'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c9ae773ed2feb40eb960c345bbdce45aad3bf5f
[INFO] checking mix-blockchain/mix-base against try#b1375b2484512d46eeace16657e5b4a5450c610b for pr-112743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmix-blockchain%2Fmix-base" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mix-blockchain/mix-base on toolchain b1375b2484512d46eeace16657e5b4a5450c610b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mix-blockchain/mix-base
[INFO] finished tweaking git repo https://github.com/mix-blockchain/mix-base
[INFO] tweaked toml for git repo https://github.com/mix-blockchain/mix-base written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mix-blockchain/mix-base 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" "+b1375b2484512d46eeace16657e5b4a5450c610b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b62f845f0d40d36e4d86e9dba65f0390dad2927362d0bebb989dd22886cfabc
[INFO] running `Command { std: "docker" "start" "-a" "5b62f845f0d40d36e4d86e9dba65f0390dad2927362d0bebb989dd22886cfabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b62f845f0d40d36e4d86e9dba65f0390dad2927362d0bebb989dd22886cfabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b62f845f0d40d36e4d86e9dba65f0390dad2927362d0bebb989dd22886cfabc", kill_on_drop: false }`
[INFO] [stdout] 5b62f845f0d40d36e4d86e9dba65f0390dad2927362d0bebb989dd22886cfabc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e22b142faafff45b47e577889d24403cf7ec542cd7814a82520f7e92d13d7ff
[INFO] running `Command { std: "docker" "start" "-a" "4e22b142faafff45b47e577889d24403cf7ec542cd7814a82520f7e92d13d7ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling gio v0.6.0
[INFO] [stderr]    Compiling pango v0.6.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.6.0
[INFO] [stderr]    Compiling cairo-rs v0.6.0
[INFO] [stderr]    Compiling atk v0.6.0
[INFO] [stderr]    Compiling gdk v0.10.0
[INFO] [stderr]    Compiling gtk v0.6.0
[INFO] [stderr]    Compiling glib-sys v0.8.0
[INFO] [stderr]    Compiling gobject-sys v0.8.0
[INFO] [stderr]    Compiling gio-sys v0.8.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.8.0
[INFO] [stderr]    Compiling pango-sys v0.8.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.8.0
[INFO] [stderr]    Compiling gdk-sys v0.8.0
[INFO] [stderr]    Compiling atk-sys v0.8.0
[INFO] [stderr]    Compiling gtk-sys v0.8.0
[INFO] [stderr]     Checking glib v0.7.1
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:429:9
[INFO] [stderr] error: could not compile `gtk` (lib)
[INFO] running `Command { std: "docker" "inspect" "4e22b142faafff45b47e577889d24403cf7ec542cd7814a82520f7e92d13d7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e22b142faafff45b47e577889d24403cf7ec542cd7814a82520f7e92d13d7ff", kill_on_drop: false }`
[INFO] [stdout] 4e22b142faafff45b47e577889d24403cf7ec542cd7814a82520f7e92d13d7ff