[INFO] fetching crate xcb 0.7.8...
[INFO] checking xcb-0.7.8 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate xcb 0.7.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xcb 0.7.8 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xcb 0.7.8
[INFO] finished tweaking crates.io crate xcb 0.7.8
[INFO] tweaked toml for crates.io crate xcb 0.7.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32d78c281753fabe2c7b8442c845b5000f95cd52bab59136a949801f35e3b8f5
[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" "32d78c281753fabe2c7b8442c845b5000f95cd52bab59136a949801f35e3b8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32d78c281753fabe2c7b8442c845b5000f95cd52bab59136a949801f35e3b8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32d78c281753fabe2c7b8442c845b5000f95cd52bab59136a949801f35e3b8f5", kill_on_drop: false }`
[INFO] [stdout] 32d78c281753fabe2c7b8442c845b5000f95cd52bab59136a949801f35e3b8f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 419e5f3d185e8a8a2e680be00278e571a878c317690a5226315246b605b16beb
[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" "419e5f3d185e8a8a2e680be00278e571a878c317690a5226315246b605b16beb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling xcb v0.7.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     if try!(fs::metadata(xml_dir)).is_dir() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |         for entry in try!(fs::read_dir(xml_dir)) {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let path = try!(entry).path();
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |             if try!(fs::metadata(&path)).is_file() {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     if ext == "xml" { try!(cb(&path)); }
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let xml_file_mtime = try!(fs::metadata(&xml_file)).mtime();
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> build.rs:68:26
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let status = try!(Command::new("python3")
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static of uninhabited type
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/xcb-5818083a60edb96b/out/ffi/big_requests.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub static mut xcb_big_requests_id: xcb_extension_t;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(uninhabited_static)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
[INFO] [stdout]    = note: uninhabited statics cannot be initialized, and any access would be an immediate error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static of uninhabited type
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/xcb-5818083a60edb96b/out/ffi/xc_misc.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub static mut xcb_xc_misc_id: xcb_extension_t;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
[INFO] [stdout]     = note: uninhabited statics cannot be initialized, and any access would be an immediate error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static of uninhabited type
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/xcb-5818083a60edb96b/out/ffi/big_requests.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub static mut xcb_big_requests_id: xcb_extension_t;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(uninhabited_static)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
[INFO] [stdout]    = note: uninhabited statics cannot be initialized, and any access would be an immediate error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static of uninhabited type
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/xcb-5818083a60edb96b/out/ffi/xc_misc.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub static mut xcb_xc_misc_id: xcb_extension_t;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>
[INFO] [stdout]     = note: uninhabited statics cannot be initialized, and any access would be an immediate error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.84s
[INFO] running `Command { std: "docker" "inspect" "419e5f3d185e8a8a2e680be00278e571a878c317690a5226315246b605b16beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419e5f3d185e8a8a2e680be00278e571a878c317690a5226315246b605b16beb", kill_on_drop: false }`
[INFO] [stdout] 419e5f3d185e8a8a2e680be00278e571a878c317690a5226315246b605b16beb