[INFO] cloning repository https://github.com/TheWaWaR/flume-multi-consumer-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheWaWaR/flume-multi-consumer-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheWaWaR%2Fflume-multi-consumer-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheWaWaR%2Fflume-multi-consumer-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ef069ab3832d537e35407ccd74e061d9f56c184
[INFO] checking TheWaWaR/flume-multi-consumer-demo against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheWaWaR%2Fflume-multi-consumer-demo" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/TheWaWaR/flume-multi-consumer-demo
[INFO] finished tweaking git repo https://github.com/TheWaWaR/flume-multi-consumer-demo
[INFO] tweaked toml for git repo https://github.com/TheWaWaR/flume-multi-consumer-demo written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TheWaWaR/flume-multi-consumer-demo on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TheWaWaR/flume-multi-consumer-demo 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buddy-alloc v0.4.2
[INFO] [stderr]   Downloaded lockfree v0.5.1
[INFO] [stderr]   Downloaded rlimit v0.6.2
[INFO] [stderr]   Downloaded owned-alloc v0.2.0
[INFO] [stderr]   Downloaded intrusive-collections v0.9.5
[INFO] [stderr]   Downloaded glommio v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b49804602c27f99b346a0db3173910dc3f204c4f8cbe5fb33ce9c56bc22ddb90
[INFO] running `Command { std: "docker" "start" "-a" "b49804602c27f99b346a0db3173910dc3f204c4f8cbe5fb33ce9c56bc22ddb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b49804602c27f99b346a0db3173910dc3f204c4f8cbe5fb33ce9c56bc22ddb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b49804602c27f99b346a0db3173910dc3f204c4f8cbe5fb33ce9c56bc22ddb90", kill_on_drop: false }`
[INFO] [stdout] b49804602c27f99b346a0db3173910dc3f204c4f8cbe5fb33ce9c56bc22ddb90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d09277d5af99413c57403b242fe9143fc6a660039c85acf9e605f687a2c4ca4
[INFO] running `Command { std: "docker" "start" "-a" "5d09277d5af99413c57403b242fe9143fc6a660039c85acf9e605f687a2c4ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking lock_api v0.4.9
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling glommio v0.8.0
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]     Checking owned-alloc v0.2.0
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking spin v0.9.6
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]     Checking buddy-alloc v0.4.2
[INFO] [stderr]     Checking lockfree v0.5.1
[INFO] [stderr]     Checking bitmaps v3.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 sketches-ddsketch v0.1.3
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking intrusive-collections v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[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" "5d09277d5af99413c57403b242fe9143fc6a660039c85acf9e605f687a2c4ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d09277d5af99413c57403b242fe9143fc6a660039c85acf9e605f687a2c4ca4", kill_on_drop: false }`
[INFO] [stdout] 5d09277d5af99413c57403b242fe9143fc6a660039c85acf9e605f687a2c4ca4