[INFO] cloning repository https://github.com/yoshuawuyts/spec-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yoshuawuyts/spec-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fspec-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fspec-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ee3bdc39b06bdf691f8904f0f8146917db90c36a [INFO] testing yoshuawuyts/spec-rust against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoshuawuyts%2Fspec-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yoshuawuyts/spec-rust on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yoshuawuyts/spec-rust [INFO] finished tweaking git repo https://github.com/yoshuawuyts/spec-rust [INFO] tweaked toml for git repo https://github.com/yoshuawuyts/spec-rust written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/yoshuawuyts/spec-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rayon v0.9.0 [INFO] [stderr] Downloaded futures-io v0.2.1 [INFO] [stderr] Downloaded futures-stable v0.2.1 [INFO] [stderr] Downloaded futures-await v0.1.1 [INFO] [stderr] Downloaded futures-await-async-macro v0.1.4 [INFO] [stderr] Downloaded cexpr v0.2.2 [INFO] [stderr] Downloaded futures-async-runtime v0.2.1 [INFO] [stderr] Downloaded futures-channel v0.2.1 [INFO] [stderr] Downloaded futures-util v0.2.1 [INFO] [stderr] Downloaded futures v0.2.1 [INFO] [stderr] Downloaded futures-await-await-macro v0.1.1 [INFO] [stderr] Downloaded tokio-threadpool v0.1.4 [INFO] [stderr] Downloaded futures-sink v0.2.1 [INFO] [stderr] Downloaded futures-core v0.2.1 [INFO] [stderr] Downloaded which v1.0.3 [INFO] [stderr] Downloaded clang-sys v0.21.1 [INFO] [stderr] Downloaded futures-executor v0.2.1 [INFO] [stderr] Downloaded proc-macro2 v0.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db4c9dacafac6d3ab89619eef3cd8d73cda0d6a0cdfdea0b8aa635703168d6c0 [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" "db4c9dacafac6d3ab89619eef3cd8d73cda0d6a0cdfdea0b8aa635703168d6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db4c9dacafac6d3ab89619eef3cd8d73cda0d6a0cdfdea0b8aa635703168d6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db4c9dacafac6d3ab89619eef3cd8d73cda0d6a0cdfdea0b8aa635703168d6c0", kill_on_drop: false }` [INFO] [stdout] db4c9dacafac6d3ab89619eef3cd8d73cda0d6a0cdfdea0b8aa635703168d6c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5ace5fae37c22e5d77c05870efff8d5f6d770cc268e1575791fda8953cfdb0bf [INFO] running `Command { std: "docker" "start" "-a" "5ace5fae37c22e5d77c05870efff8d5f6d770cc268e1575791fda8953cfdb0bf", kill_on_drop: false }` [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling bindgen v0.32.3 [INFO] [stderr] Compiling futures-await-await-macro v0.1.1 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling atty v0.2.6 [INFO] [stderr] Compiling which v1.0.3 [INFO] [stderr] Compiling futures-core v0.2.1 [INFO] [stderr] Compiling net2 v0.2.32 [INFO] [stderr] Compiling crossbeam-utils v0.3.2 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Compiling clang-sys v0.21.1 [INFO] [stderr] Compiling proc-macro2 v0.2.2 [INFO] [stderr] Compiling rayon-core v1.3.0 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Compiling bytes v0.4.6 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/lib.rs:47:34 [INFO] [stdout] | [INFO] [stdout] 47 | #![cfg_attr(feature = "nightly", feature(proc_macro))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nom v3.2.1 [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:284:13 [INFO] [stdout] | [INFO] [stdout] 284 | Nightly(proc_macro::SourceFile, FileName), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54725 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:289:20 [INFO] [stdout] | [INFO] [stdout] 289 | fn nightly(sf: proc_macro::SourceFile) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54725 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Compiling backtrace v0.3.8 [INFO] [stderr] Compiling clap v2.29.4 [INFO] [stderr] Compiling crossbeam-epoch v0.4.3 [INFO] [stderr] Compiling futures-channel v0.2.1 [INFO] [stderr] Compiling futures-io v0.2.1 [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:45 [INFO] [stdout] | [INFO] [stdout] 290 | let filename = stable::file_name(sf.path().to_string()); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54725 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mio v0.6.14 [INFO] [stdout] error[E0599]: no method named `to_string` found for struct `PathBuf` in the current scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:52 [INFO] [stdout] | [INFO] [stdout] 290 | let filename = stable::file_name(sf.path().to_string()); [INFO] [stdout] | ^^^^^^^^^ help: there is an associated function with a similar name: `to_str` [INFO] [stdout] | [INFO] [stdout] = note: the method `to_string` exists but the following trait bounds were not satisfied: [INFO] [stdout] `PathBuf: std::fmt::Display` [INFO] [stdout] which is required by `PathBuf: ToString` [INFO] [stdout] `Path: std::fmt::Display` [INFO] [stdout] which is required by `Path: ToString` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:304:44 [INFO] [stdout] | [INFO] [stdout] 304 | SourceFile::Nightly(a, _) => a.is_real(), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54725 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_def_site' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:347:27 [INFO] [stdout] | [INFO] [stdout] 347 | Span::Nightly(proc_macro::Span::def_site()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54724 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:424:55 [INFO] [stdout] | [INFO] [stdout] 424 | (Span::Nightly(a), Span::Nightly(b)) => a.eq(b), [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54725 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 8 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` [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" "5ace5fae37c22e5d77c05870efff8d5f6d770cc268e1575791fda8953cfdb0bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ace5fae37c22e5d77c05870efff8d5f6d770cc268e1575791fda8953cfdb0bf", kill_on_drop: false }` [INFO] [stdout] 5ace5fae37c22e5d77c05870efff8d5f6d770cc268e1575791fda8953cfdb0bf