[INFO] fetching crate ivory_bus 0.1.5...
[INFO] checking ivory_bus-0.1.5 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate ivory_bus 0.1.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ivory_bus 0.1.5 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ivory_bus 0.1.5
[INFO] finished tweaking crates.io crate ivory_bus 0.1.5
[INFO] tweaked toml for crates.io crate ivory_bus 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate ivory_bus 0.1.5 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.60
[INFO] [stderr]   Downloaded executor-trait v2.1.0
[INFO] [stderr]   Downloaded tokio-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 paste v1.0.11
[INFO] [stderr]   Downloaded lapin v2.1.1
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded des v0.8.1
[INFO] [stderr]   Downloaded block-padding v0.3.2
[INFO] [stderr]   Downloaded cipher v0.4.3
[INFO] [stderr]   Downloaded rustls v0.20.7
[INFO] [stderr]   Downloaded rc2 v0.8.1
[INFO] [stderr]   Downloaded yasna v0.5.1
[INFO] [stderr]   Downloaded p12 v0.6.3
[INFO] [stderr]   Downloaded rustls-connector v0.16.1
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded tcp-stream v0.24.4
[INFO] [stderr]   Downloaded amq-protocol-tcp v7.0.1
[INFO] [stderr]   Downloaded amq-protocol-types v7.0.1
[INFO] [stderr]   Downloaded amq-protocol-uri v7.0.1
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded amq-protocol 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 pinky-swear v6.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec156b10d7c186ac17285d559d85518e1b1cd2c64a4e632298d0878dffb68c9a
[INFO] running `Command { std: "docker" "start" "-a" "ec156b10d7c186ac17285d559d85518e1b1cd2c64a4e632298d0878dffb68c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec156b10d7c186ac17285d559d85518e1b1cd2c64a4e632298d0878dffb68c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec156b10d7c186ac17285d559d85518e1b1cd2c64a4e632298d0878dffb68c9a", kill_on_drop: false }`
[INFO] [stdout] ec156b10d7c186ac17285d559d85518e1b1cd2c64a4e632298d0878dffb68c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca33dc51362eebde0fecc1bdb1b2c65cdf1a38103264c67d9be3eefa7277df13
[INFO] running `Command { std: "docker" "start" "-a" "ca33dc51362eebde0fecc1bdb1b2c65cdf1a38103264c67d9be3eefa7277df13", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.60
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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]    Compiling rustls v0.20.7
[INFO] [stderr]     Checking rustls-pemfile v1.0.1
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking concurrent-queue v2.0.0
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking rustls-native-certs v0.6.2
[INFO] [stderr]    Compiling tokio v1.24.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ca33dc51362eebde0fecc1bdb1b2c65cdf1a38103264c67d9be3eefa7277df13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca33dc51362eebde0fecc1bdb1b2c65cdf1a38103264c67d9be3eefa7277df13", kill_on_drop: false }`
[INFO] [stdout] ca33dc51362eebde0fecc1bdb1b2c65cdf1a38103264c67d9be3eefa7277df13
