[INFO] cloning repository https://github.com/davidbarsky/tracing-reproduction [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidbarsky/tracing-reproduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftracing-reproduction", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftracing-reproduction'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3663f47b17bf5c9f02a73fec6bf623ff562d35bd [INFO] checking davidbarsky/tracing-reproduction against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ftracing-reproduction" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/davidbarsky/tracing-reproduction on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/davidbarsky/tracing-reproduction [INFO] finished tweaking git repo https://github.com/davidbarsky/tracing-reproduction [INFO] tweaked toml for git repo https://github.com/davidbarsky/tracing-reproduction written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/davidbarsky/tracing-reproduction already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", 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] 38fe09b4dbc02dd7f57804c0b8753736d6515711021cccb79dea8bdd64c3eab8 [INFO] running `Command { std: "docker" "start" "-a" "38fe09b4dbc02dd7f57804c0b8753736d6515711021cccb79dea8bdd64c3eab8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "38fe09b4dbc02dd7f57804c0b8753736d6515711021cccb79dea8bdd64c3eab8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38fe09b4dbc02dd7f57804c0b8753736d6515711021cccb79dea8bdd64c3eab8", kill_on_drop: false }` [INFO] [stdout] 38fe09b4dbc02dd7f57804c0b8753736d6515711021cccb79dea8bdd64c3eab8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dab47510de3adff82db9a2b08b54f2c3710955f4da350ecb1809bacf20245e7b [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" "dab47510de3adff82db9a2b08b54f2c3710955f4da350ecb1809bacf20245e7b", 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] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking tracing-core v0.1.7 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling tracing-attributes v0.1.5 [INFO] [stderr] Checking tracing v0.1.10 [INFO] [stderr] Checking tracing-reproduction v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the trait bound `Option<&'a Id>: From>` is not satisfied [INFO] [stdout] --> src/main.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | span.follows_from(curr.id()); [INFO] [stdout] | ^^^^^^^^^^^^ the trait `From>` is not implemented for `Option<&'a Id>` [INFO] [stdout] | [INFO] [stdout] = help: the following implementations were found: [INFO] [stdout] as From<&'a Option>> [INFO] [stdout] as From<&'a mut Option>> [INFO] [stdout] as From> [INFO] [stdout] = note: required because of the requirements on the impl of `for<'a> Into>` for `Option` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `Option<&'a Id>: From>` is not satisfied [INFO] [stdout] --> src/main.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | span.follows_from(curr.id()); [INFO] [stdout] | ^^^^^^^^^^^^ the trait `From>` is not implemented for `Option<&'a Id>` [INFO] [stdout] | [INFO] [stdout] = help: the following implementations were found: [INFO] [stdout] as From<&'a Option>> [INFO] [stdout] as From<&'a mut Option>> [INFO] [stdout] as From> [INFO] [stdout] = note: required because of the requirements on the impl of `for<'a> Into>` for `Option` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tracing-reproduction` [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [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" "dab47510de3adff82db9a2b08b54f2c3710955f4da350ecb1809bacf20245e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dab47510de3adff82db9a2b08b54f2c3710955f4da350ecb1809bacf20245e7b", kill_on_drop: false }` [INFO] [stdout] dab47510de3adff82db9a2b08b54f2c3710955f4da350ecb1809bacf20245e7b