[INFO] cloning repository https://github.com/chengzhong001/rust-programming [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chengzhong001/rust-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchengzhong001%2Frust-programming", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchengzhong001%2Frust-programming'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e9fda6ebbfb5a8d4daf8978ae8f1264547d7a85e [INFO] checking chengzhong001/rust-programming against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchengzhong001%2Frust-programming" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/chengzhong001/rust-programming [INFO] finished tweaking git repo https://github.com/chengzhong001/rust-programming [INFO] tweaked toml for git repo https://github.com/chengzhong001/rust-programming written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/chengzhong001/rust-programming on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/chengzhong001/rust-programming 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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3b41ae0c87c2f84c9e95b74d6c6e3cf57c61873c4e40429821ad9e92fee2586e [INFO] running `Command { std: "docker" "start" "-a" "3b41ae0c87c2f84c9e95b74d6c6e3cf57c61873c4e40429821ad9e92fee2586e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b41ae0c87c2f84c9e95b74d6c6e3cf57c61873c4e40429821ad9e92fee2586e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b41ae0c87c2f84c9e95b74d6c6e3cf57c61873c4e40429821ad9e92fee2586e", kill_on_drop: false }` [INFO] [stdout] 3b41ae0c87c2f84c9e95b74d6c6e3cf57c61873c4e40429821ad9e92fee2586e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de8acc5b80390c6badd637067e865b0740fe08f866a1e9bc3ba602bf4e76e006 [INFO] running `Command { std: "docker" "start" "-a" "de8acc5b80390c6badd637067e865b0740fe08f866a1e9bc3ba602bf4e76e006", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling proc-macro2 v1.0.47 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.103 [INFO] [stderr] Compiling unicode-ident v1.0.5 [INFO] [stderr] Compiling libc v0.2.137 [INFO] [stderr] Checking advanced_features v0.1.0 (/opt/rustwide/workdir/19-advanced_features) [INFO] [stderr] Checking smart_pointer v0.1.0 (/opt/rustwide/workdir/15-smart_pointer) [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking hello_macro v0.1.0 (/opt/rustwide/workdir/19-advanced_features/hello_macro) [INFO] [stderr] Checking generic_traits_lifetime v0.1.0 (/opt/rustwide/workdir/10-generic_traits_lifetime) [INFO] [stderr] Checking iterators_and_closures v0.1.0 (/opt/rustwide/workdir/13-iterators_and_closures) [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking oop v0.1.0 (/opt/rustwide/workdir/17-oop) [INFO] [stderr] Checking command_line_program v0.1.0 (/opt/rustwide/workdir/12-command_line_program) [INFO] [stderr] Checking web_server v0.1.0 (/opt/rustwide/workdir/20-web_server) [INFO] [stderr] Checking cargo_and_cargo_io v0.1.0 (/opt/rustwide/workdir/14-cargo_and_cargo_io) [INFO] [stderr] Checking packages_crate_modules v0.1.0 (/opt/rustwide/workdir/07-packages_crate_modules) [INFO] [stderr] Checking automated_tests v0.1.0 (/opt/rustwide/workdir/11-automated_tests) [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> 19-advanced_features/examples/unsafe.rs:82:33 [INFO] [stdout] | [INFO] [stdout] 82 | println!("COUNTER: {}", COUNTER); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking ownership v0.1.0 (/opt/rustwide/workdir/04-ownership) [INFO] [stderr] Checking hello_cargo v0.1.0 (/opt/rustwide/workdir/01-hello_cargo) [INFO] [stderr] Checking common_collectios v0.1.0 (/opt/rustwide/workdir/08-common_collectios) [INFO] [stderr] Checking enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/06-enums_and_pattern_matching) [INFO] [stderr] Checking error_handling v0.1.0 (/opt/rustwide/workdir/09-error_handling) [INFO] [stderr] Checking pattern_and_matching v0.1.0 (/opt/rustwide/workdir/18-pattern_and_matching) [INFO] [stderr] Checking fearless_concurrency v0.1.0 (/opt/rustwide/workdir/16-fearless_concurrency) [INFO] [stderr] Checking common_programming_concepts v0.1.0 (/opt/rustwide/workdir/03-common_programming_concepts) [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking structs v0.1.0 (/opt/rustwide/workdir/05-structs) [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "de8acc5b80390c6badd637067e865b0740fe08f866a1e9bc3ba602bf4e76e006", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de8acc5b80390c6badd637067e865b0740fe08f866a1e9bc3ba602bf4e76e006", kill_on_drop: false }` [INFO] [stdout] de8acc5b80390c6badd637067e865b0740fe08f866a1e9bc3ba602bf4e76e006