[INFO] fetching crate screenruster 0.2.1... [INFO] testing screenruster-0.2.1 against 1.90.0 for beta-1.91-3 [INFO] extracting crate screenruster 0.2.1 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate screenruster 0.2.1 [INFO] finished tweaking crates.io crate screenruster 0.2.1 [INFO] tweaked toml for crates.io crate screenruster 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate screenruster 0.2.1 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate screenruster 0.2.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded xcb-util v0.2.2 [INFO] [stderr] Downloaded xkb v0.2.1 [INFO] [stderr] Downloaded xkbcommon-sys v0.7.4 [INFO] [stderr] Downloaded screenruster-saver v0.2.2 [INFO] [stderr] Downloaded users v0.9.1 [INFO] [stderr] Downloaded shell32-sys v0.1.2 [INFO] [stderr] Downloaded c2-chacha v0.2.3 [INFO] [stderr] Downloaded ole32-sys v0.2.0 [INFO] [stderr] Downloaded serde v1.0.104 [INFO] [stderr] Downloaded unicode-width v0.1.7 [INFO] [stderr] Downloaded libdbus-sys v0.2.1 [INFO] [stderr] Downloaded dbus v0.6.5 [INFO] [stderr] Downloaded crossbeam-channel v0.3.9 [INFO] [stderr] Downloaded crossbeam-channel v0.4.0 [INFO] [stderr] Downloaded clap v2.33.0 [INFO] [stderr] Downloaded aho-corasick v0.7.6 [INFO] [stderr] Downloaded regex-syntax v0.6.12 [INFO] [stderr] Downloaded xcb v0.9.0 [INFO] [stderr] Downloaded regex v1.3.1 [INFO] [stderr] Downloaded getrandom v0.1.13 [INFO] [stderr] Downloaded rand v0.7.2 [INFO] [stderr] Downloaded pam-sys v0.5.6 [INFO] [stderr] Downloaded crossbeam-utils v0.6.6 [INFO] [stderr] Downloaded rand_chacha v0.2.1 [INFO] [stderr] Downloaded crossbeam-utils v0.7.0 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded app_dirs v1.2.1 [INFO] [stderr] Downloaded json v0.12.0 [INFO] [stderr] Downloaded memchr v2.2.1 [INFO] [stderr] Downloaded termcolor v1.0.5 [INFO] [stderr] Downloaded wasi v0.7.0 [INFO] [stderr] Downloaded wincolor v1.0.2 [INFO] [stderr] Downloaded toml v0.5.5 [INFO] [stderr] Downloaded winapi-util v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 43043cfef8a0754712ebc00730dd6f74ff1502da2cd312e2bc1569a3892058cd [INFO] running `Command { std: "docker" "start" "-a" "43043cfef8a0754712ebc00730dd6f74ff1502da2cd312e2bc1569a3892058cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "43043cfef8a0754712ebc00730dd6f74ff1502da2cd312e2bc1569a3892058cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43043cfef8a0754712ebc00730dd6f74ff1502da2cd312e2bc1569a3892058cd", kill_on_drop: false }` [INFO] [stdout] 43043cfef8a0754712ebc00730dd6f74ff1502da2cd312e2bc1569a3892058cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 661782867d82d7bb8225b83ef1936488b626362db2cd26e546398c4a03de5fca [INFO] running `Command { std: "docker" "start" "-a" "661782867d82d7bb8225b83ef1936488b626362db2cd26e546398c4a03de5fca", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling pam-sys v0.5.6 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling xkbcommon-sys v0.7.4 [INFO] [stderr] Compiling libdbus-sys v0.2.1 [INFO] [stderr] Compiling termcolor v1.0.5 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling xcb v0.9.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling crossbeam-channel v0.4.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling json v0.12.0 [INFO] [stderr] Compiling xdg v2.2.0 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling app_dirs v1.2.1 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling dbus v0.6.5 [INFO] [stderr] Compiling users v0.9.1 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling screenruster-saver v0.2.2 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/screenruster-saver-0.2.2/src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | #![feature(type_ascription)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `screenruster-saver` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "661782867d82d7bb8225b83ef1936488b626362db2cd26e546398c4a03de5fca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "661782867d82d7bb8225b83ef1936488b626362db2cd26e546398c4a03de5fca", kill_on_drop: false }` [INFO] [stdout] 661782867d82d7bb8225b83ef1936488b626362db2cd26e546398c4a03de5fca