[INFO] cloning repository https://github.com/njust/gtk4_col_view_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/njust/gtk4_col_view_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjust%2Fgtk4_col_view_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjust%2Fgtk4_col_view_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0e9683e01161dbb9737def01665a473efb79a5f
[INFO] checking njust/gtk4_col_view_test against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjust%2Fgtk4_col_view_test" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/njust/gtk4_col_view_test on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/njust/gtk4_col_view_test
[INFO] finished tweaking git repo https://github.com/njust/gtk4_col_view_test
[INFO] tweaked toml for git repo https://github.com/njust/gtk4_col_view_test written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/njust/gtk4_col_view_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir.git`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir-files.git`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir`
[INFO] [stderr]     Updating git submodule `https://github.com/gtk-rs/gir-files`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded system-deps v3.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a157c82822bfc1e7fc08da16c8fadde2ded8809180b150c57ec31c2c01156a98
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a157c82822bfc1e7fc08da16c8fadde2ded8809180b150c57ec31c2c01156a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a157c82822bfc1e7fc08da16c8fadde2ded8809180b150c57ec31c2c01156a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a157c82822bfc1e7fc08da16c8fadde2ded8809180b150c57ec31c2c01156a98", kill_on_drop: false }`
[INFO] [stdout] a157c82822bfc1e7fc08da16c8fadde2ded8809180b150c57ec31c2c01156a98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91210095d25db6f4691251d8da2d56948f75058ee805f44638ca39ad25f65ede
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "91210095d25db6f4691251d8da2d56948f75058ee805f44638ca39ad25f65ede", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling gio v0.13.0 (https://github.com/gtk-rs/gtk-rs#f92a388a)
[INFO] [stderr]    Compiling pango v0.13.0 (https://github.com/gtk-rs/gtk-rs#f92a388a)
[INFO] [stderr]    Compiling cairo-rs v0.13.0 (https://github.com/gtk-rs/gtk-rs#f92a388a)
[INFO] [stderr]    Compiling gdk-pixbuf v0.13.0 (https://github.com/gtk-rs/gtk-rs#f92a388a)
[INFO] [stderr]    Compiling gdk4 v0.1.0 (https://github.com/gtk-rs/gtk4-rs.git#e3fd8b84)
[INFO] [stderr]    Compiling graphene-rs v0.13.0 (https://github.com/gtk-rs/gtk-rs#f92a388a)
[INFO] [stderr]    Compiling gsk4 v0.1.0 (https://github.com/gtk-rs/gtk4-rs.git#e3fd8b84)
[INFO] [stderr]    Compiling gtk4 v0.1.0 (https://github.com/gtk-rs/gtk4-rs.git#e3fd8b84)
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling anyhow v1.0.39
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling cfg-expr v0.7.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]     Checking freetype v0.7.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling field-offset v0.3.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/field-offset-0.3.3/src/lib.rs:3:53
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(fieldoffset_assert_in_const_fn, feature(const_fn))]
[INFO] [stdout]   |                                                     ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `field-offset`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "91210095d25db6f4691251d8da2d56948f75058ee805f44638ca39ad25f65ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91210095d25db6f4691251d8da2d56948f75058ee805f44638ca39ad25f65ede", kill_on_drop: false }`
[INFO] [stdout] 91210095d25db6f4691251d8da2d56948f75058ee805f44638ca39ad25f65ede