[INFO] cloning repository https://github.com/skywa04885/ivory_bus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skywa04885/ivory_bus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskywa04885%2Fivory_bus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskywa04885%2Fivory_bus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 163c7ef84e6081b294ad68955230e02835cd9b02
[INFO] checking skywa04885/ivory_bus against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskywa04885%2Fivory_bus" "/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/skywa04885/ivory_bus
[INFO] finished tweaking git repo https://github.com/skywa04885/ivory_bus
[INFO] tweaked toml for git repo https://github.com/skywa04885/ivory_bus written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skywa04885/ivory_bus on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skywa04885/ivory_bus 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking skywa04885/ivory_bus against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskywa04885%2Fivory_bus" "/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/skywa04885/ivory_bus
[INFO] finished tweaking git repo https://github.com/skywa04885/ivory_bus
[INFO] tweaked toml for git repo https://github.com/skywa04885/ivory_bus written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skywa04885/ivory_bus on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skywa04885/ivory_bus 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.60
[INFO] [stderr]   Downloaded tokio-executor-trait v2.1.0
[INFO] [stderr]   Downloaded executor-trait v2.1.0
[INFO] [stderr]   Downloaded reactor-trait v1.1.0
[INFO] [stderr]   Downloaded tokio-reactor-trait v1.1.0
[INFO] [stderr]   Downloaded pinky-swear v6.1.0
[INFO] [stderr]   Downloaded tcp-stream v0.24.4
[INFO] [stderr]   Downloaded amq-protocol-tcp v7.0.1
[INFO] [stderr]   Downloaded rustls-connector v0.16.1
[INFO] [stderr]   Downloaded amq-protocol-uri v7.0.1
[INFO] [stderr]   Downloaded async-global-executor-trait v2.1.0
[INFO] [stderr]   Downloaded async-reactor-trait v1.1.0
[INFO] [stderr]   Downloaded block-padding v0.3.2
[INFO] [stderr]   Downloaded p12 v0.6.3
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] [stderr]   Downloaded lapin v2.1.1
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded concurrent-queue v2.0.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded amq-protocol-types v7.0.1
[INFO] [stderr]   Downloaded amq-protocol v7.0.1
[INFO] [stderr]   Downloaded rustls v0.20.7
[INFO] [stderr]   Downloaded nalgebra v0.31.4
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d53b58980b18a25e5a04d53851610843d168a5b03bbc92d47d468c8b20f2f726
[INFO] running `Command { std: "docker" "start" "-a" "d53b58980b18a25e5a04d53851610843d168a5b03bbc92d47d468c8b20f2f726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d53b58980b18a25e5a04d53851610843d168a5b03bbc92d47d468c8b20f2f726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d53b58980b18a25e5a04d53851610843d168a5b03bbc92d47d468c8b20f2f726", kill_on_drop: false }`
[INFO] [stdout] d53b58980b18a25e5a04d53851610843d168a5b03bbc92d47d468c8b20f2f726
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 996f83478f3383c3b629fcd716b3b391d9a5bb68c0aa32a60c388e909a9d894d
[INFO] running `Command { std: "docker" "start" "-a" "996f83478f3383c3b629fcd716b3b391d9a5bb68c0aa32a60c388e909a9d894d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]    Compiling async-trait v0.1.60
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]     Checking parking_lot_core v0.9.5
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stderr]     Checking rustls-pemfile v1.0.1
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]     Checking nom v7.1.2
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling tokio v1.24.1
[INFO] [stderr]     Checking yasna v0.5.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 tracing-core v0.1.30
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rustls-native-certs v0.6.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking mio v0.8.5
[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" "996f83478f3383c3b629fcd716b3b391d9a5bb68c0aa32a60c388e909a9d894d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996f83478f3383c3b629fcd716b3b391d9a5bb68c0aa32a60c388e909a9d894d", kill_on_drop: false }`
[INFO] [stdout] 996f83478f3383c3b629fcd716b3b391d9a5bb68c0aa32a60c388e909a9d894d