[INFO] fetching crate tracing-tree2 0.3.0... [INFO] building tracing-tree2-0.3.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate tracing-tree2 0.3.0 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate tracing-tree2 0.3.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate tracing-tree2 0.3.0 [INFO] tweaked toml for crates.io crate tracing-tree2 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate tracing-tree2 0.3.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate tracing-tree2 0.3.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates-core v1.0.5 [INFO] [stderr] Downloaded tracing-attributes v0.1.23 [INFO] [stderr] Downloaded proc-macro2 v1.0.51 [INFO] [stderr] Downloaded termtree v0.4.0 [INFO] [stderr] Downloaded predicates-tree v1.0.7 [INFO] [stderr] Downloaded assert_cmd v1.0.8 [INFO] [stderr] Downloaded tracing-subscriber v0.3.16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b65ae38ff50b30dac73b06afb23e17d3be99ba30c02ee97485d94ddc928accf3 [INFO] running `Command { std: "docker" "start" "-a" "b65ae38ff50b30dac73b06afb23e17d3be99ba30c02ee97485d94ddc928accf3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b65ae38ff50b30dac73b06afb23e17d3be99ba30c02ee97485d94ddc928accf3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b65ae38ff50b30dac73b06afb23e17d3be99ba30c02ee97485d94ddc928accf3", kill_on_drop: false }` [INFO] [stdout] b65ae38ff50b30dac73b06afb23e17d3be99ba30c02ee97485d94ddc928accf3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6080bb5725bf80d82c613c48fba6fcecf636c03532e737597c82d1c6b0bd4f5f [INFO] running `Command { std: "docker" "start" "-a" "6080bb5725bf80d82c613c48fba6fcecf636c03532e737597c82d1c6b0bd4f5f", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling tracing-core v0.1.30 [INFO] [stderr] Compiling thread_local v1.1.4 [INFO] [stderr] Compiling sharded-slab v0.1.4 [INFO] [stderr] Compiling overload v0.1.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling nu-ansi-term v0.46.0 [INFO] [stderr] Compiling tracing-log v0.1.3 [INFO] [stderr] Compiling tracing-subscriber v0.3.16 [INFO] [stderr] Compiling tracing-tree2 v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.15s [INFO] running `Command { std: "docker" "inspect" "6080bb5725bf80d82c613c48fba6fcecf636c03532e737597c82d1c6b0bd4f5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6080bb5725bf80d82c613c48fba6fcecf636c03532e737597c82d1c6b0bd4f5f", kill_on_drop: false }` [INFO] [stdout] 6080bb5725bf80d82c613c48fba6fcecf636c03532e737597c82d1c6b0bd4f5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a93c944967a6970d68d33dc4d1352d8099751dfd5fece36f36bf1a67e6b66bf [INFO] running `Command { std: "docker" "start" "-a" "4a93c944967a6970d68d33dc4d1352d8099751dfd5fece36f36bf1a67e6b66bf", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.51 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling predicates-core v1.0.5 [INFO] [stderr] Compiling either v1.8.1 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling termtree v0.4.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates-tree v1.0.7 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] 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] running `Command { std: "docker" "inspect" "4a93c944967a6970d68d33dc4d1352d8099751dfd5fece36f36bf1a67e6b66bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a93c944967a6970d68d33dc4d1352d8099751dfd5fece36f36bf1a67e6b66bf", kill_on_drop: false }` [INFO] [stdout] 4a93c944967a6970d68d33dc4d1352d8099751dfd5fece36f36bf1a67e6b66bf