[INFO] cloning repository https://github.com/gi-rust/grust-proof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gi-rust/grust-proof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgi-rust%2Fgrust-proof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgi-rust%2Fgrust-proof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3df4d31c57f5a8acc0acf1769144fbdd148ad1e
[INFO] checking gi-rust/grust-proof against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgi-rust%2Fgrust-proof" "/workspace/builds/worker-90/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-90/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gi-rust/grust-proof on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gi-rust/grust-proof
[INFO] finished tweaking git repo https://github.com/gi-rust/grust-proof
[INFO] tweaked toml for git repo https://github.com/gi-rust/grust-proof written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate git repo https://github.com/gi-rust/grust-proof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/gi-rust/grust.git`
[INFO] [stderr]     Updating git repository `https://github.com/gi-rust/glib-sys.git`
[INFO] [stderr]     Updating git repository `https://github.com/gi-rust/gobject-sys.git`
[INFO] [stderr]     Updating git repository `https://github.com/gi-rust/gio-sys.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.7
[INFO] [stderr]   Downloaded gtypes v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe299b6e7979fec0234d24b81d372f52d0bb3920465bdbf1107d751aa362d29f
[INFO] running `Command { std: "docker" "start" "-a" "fe299b6e7979fec0234d24b81d372f52d0bb3920465bdbf1107d751aa362d29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe299b6e7979fec0234d24b81d372f52d0bb3920465bdbf1107d751aa362d29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe299b6e7979fec0234d24b81d372f52d0bb3920465bdbf1107d751aa362d29f", kill_on_drop: false }`
[INFO] [stdout] fe299b6e7979fec0234d24b81d372f52d0bb3920465bdbf1107d751aa362d29f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c9b5f9a14c428673a2b796dec8f377017e8dbed912bbbacda36051e9416a2f2
[INFO] running `Command { std: "docker" "start" "-a" "6c9b5f9a14c428673a2b796dec8f377017e8dbed912bbbacda36051e9416a2f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pkg-config v0.3.7
[INFO] [stderr]     Checking libc v0.2.7
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]    Compiling glib-2-0-sys v0.47.0-dev (https://github.com/gi-rust/glib-sys.git#cd5bf488)
[INFO] [stderr]    Compiling gobject-2-0-sys v0.47.0-dev (https://github.com/gi-rust/gobject-sys.git#dc41c4cf)
[INFO] [stderr]    Compiling gio-2-0-sys v0.47.0-dev (https://github.com/gi-rust/gio-sys.git#3f8cec35)
[INFO] [stderr]     Checking gtypes v0.2.0
[INFO] [stderr]     Checking grust v0.4.0-dev (https://github.com/gi-rust/grust.git#f9d241e9)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/grust-a4872ac48faf825c/f9d241e/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(unsafe_no_drop_flag)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `unsafe_no_drop_flag` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/grust-a4872ac48faf825c/f9d241e/src/value.rs:42:3
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[unsafe_no_drop_flag]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grust` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6c9b5f9a14c428673a2b796dec8f377017e8dbed912bbbacda36051e9416a2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c9b5f9a14c428673a2b796dec8f377017e8dbed912bbbacda36051e9416a2f2", kill_on_drop: false }`
[INFO] [stdout] 6c9b5f9a14c428673a2b796dec8f377017e8dbed912bbbacda36051e9416a2f2