[INFO] cloning repository https://github.com/mattdeboard/prepend_line [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattdeboard/prepend_line" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdeboard%2Fprepend_line", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdeboard%2Fprepend_line'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e4dc1c7a8266c455ef3c617f4a8b37bd0b4b676c [INFO] checking mattdeboard/prepend_line against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdeboard%2Fprepend_line" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mattdeboard/prepend_line on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mattdeboard/prepend_line [INFO] finished tweaking git repo https://github.com/mattdeboard/prepend_line [INFO] tweaked toml for git repo https://github.com/mattdeboard/prepend_line written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/mattdeboard/prepend_line already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 494fc8336eb81d8e7b7606eab8caab26b5a48235e5e2d8d6c6f8abd807d7e02c [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" "494fc8336eb81d8e7b7606eab8caab26b5a48235e5e2d8d6c6f8abd807d7e02c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "494fc8336eb81d8e7b7606eab8caab26b5a48235e5e2d8d6c6f8abd807d7e02c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "494fc8336eb81d8e7b7606eab8caab26b5a48235e5e2d8d6c6f8abd807d7e02c", kill_on_drop: false }` [INFO] [stdout] 494fc8336eb81d8e7b7606eab8caab26b5a48235e5e2d8d6c6f8abd807d7e02c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9ed54ebc1ee6f7d7f83e8ff431803e8f1e65f2ebfb0ecaa16aeee2ff823d3ce [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" "e9ed54ebc1ee6f7d7f83e8ff431803e8f1e65f2ebfb0ecaa16aeee2ff823d3ce", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.12 [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.71 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Compiling ryu v0.2.3 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.16 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Compiling log v0.4.3 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking regex-syntax v0.6.2 [INFO] [stderr] Compiling lazy_static v1.1.0 [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-macro2-0.4.12/src/unstable.rs:346:27 [INFO] [stdout] | [INFO] [stdout] 346 | Span::Nightly(proc_macro::Span::def_site()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54724 for more information [INFO] [stdout] = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [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" "e9ed54ebc1ee6f7d7f83e8ff431803e8f1e65f2ebfb0ecaa16aeee2ff823d3ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9ed54ebc1ee6f7d7f83e8ff431803e8f1e65f2ebfb0ecaa16aeee2ff823d3ce", kill_on_drop: false }` [INFO] [stdout] e9ed54ebc1ee6f7d7f83e8ff431803e8f1e65f2ebfb0ecaa16aeee2ff823d3ce