[INFO] cloning repository https://github.com/meganomic/megamonic [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meganomic/megamonic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganomic%2Fmegamonic", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganomic%2Fmegamonic'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 51e9f991558ef538e7b66ebc33f0859daea9c358 [INFO] testing meganomic/megamonic against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganomic%2Fmegamonic" "/workspace/builds/worker-56/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/meganomic/megamonic on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/meganomic/megamonic [INFO] finished tweaking git repo https://github.com/meganomic/megamonic [INFO] tweaked toml for git repo https://github.com/meganomic/megamonic written to /workspace/builds/worker-56/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libsensors-sys v0.2.0 [INFO] [stderr] Downloaded btoi v0.4.2 [INFO] [stderr] Downloaded wrapcenum-derive v0.4.0 [INFO] [stderr] Downloaded nvml-wrapper-sys v0.5.0 [INFO] [stderr] Downloaded sensors v0.2.1 [INFO] [stderr] Downloaded nvml-wrapper v0.7.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff98cef2bddfc0e4cbd35cc73f45f8cdabd6bef19aa2c342bb99796ac17d8cb4 [INFO] running `Command { std: "docker" "start" "-a" "ff98cef2bddfc0e4cbd35cc73f45f8cdabd6bef19aa2c342bb99796ac17d8cb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff98cef2bddfc0e4cbd35cc73f45f8cdabd6bef19aa2c342bb99796ac17d8cb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff98cef2bddfc0e4cbd35cc73f45f8cdabd6bef19aa2c342bb99796ac17d8cb4", kill_on_drop: false }` [INFO] [stdout] ff98cef2bddfc0e4cbd35cc73f45f8cdabd6bef19aa2c342bb99796ac17d8cb4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ae818b32d6059b0faa3be159ec9c49eb08b552d9c6dab5cf496b167b753520f [INFO] running `Command { std: "docker" "start" "-a" "9ae818b32d6059b0faa3be159ec9c49eb08b552d9c6dab5cf496b167b753520f", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libsensors-sys v0.2.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling megamonic v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling ahash v0.7.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling libloading v0.6.7 [INFO] [stderr] Compiling nvml-wrapper-sys v0.5.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling libc-strftime v0.2.0 [INFO] [stderr] Compiling sensors v0.2.1 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling btoi v0.4.2 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling thiserror-impl v1.0.29 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling wrapcenum-derive v0.4.0 [INFO] [stderr] Compiling thiserror v1.0.29 [INFO] [stderr] Compiling nvml-wrapper v0.7.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(asm)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(backtrace)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'iter_intersperse': recently added [INFO] [stdout] --> src/system/processes.rs:207:61 [INFO] [stdout] | [INFO] [stdout] 207 | ... let cmdline: String = split.intersperse(" ").collect(); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #79524 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `megamonic` due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "9ae818b32d6059b0faa3be159ec9c49eb08b552d9c6dab5cf496b167b753520f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ae818b32d6059b0faa3be159ec9c49eb08b552d9c6dab5cf496b167b753520f", kill_on_drop: false }` [INFO] [stdout] 9ae818b32d6059b0faa3be159ec9c49eb08b552d9c6dab5cf496b167b753520f