[INFO] fetching crate error-chain-utils 0.1.0...
[INFO] checking error-chain-utils-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate error-chain-utils 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate error-chain-utils 0.1.0
[INFO] finished tweaking crates.io crate error-chain-utils 0.1.0
[INFO] tweaked toml for crates.io crate error-chain-utils 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate error-chain-utils 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded error-chain-utils-macros v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f53f518a64e5df92c9edcf18fec12cd5eeca8665ec47e17b7970f941ef2e7f0d
[INFO] running `Command { std: "docker" "start" "-a" "f53f518a64e5df92c9edcf18fec12cd5eeca8665ec47e17b7970f941ef2e7f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f53f518a64e5df92c9edcf18fec12cd5eeca8665ec47e17b7970f941ef2e7f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f53f518a64e5df92c9edcf18fec12cd5eeca8665ec47e17b7970f941ef2e7f0d", kill_on_drop: false }`
[INFO] [stdout] f53f518a64e5df92c9edcf18fec12cd5eeca8665ec47e17b7970f941ef2e7f0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3866235bfcf93cc3be184bcc80d2318eda654efc7c0aa74a709b26e33e2ab7bc
[INFO] running `Command { std: "docker" "start" "-a" "3866235bfcf93cc3be184bcc80d2318eda654efc7c0aa74a709b26e33e2ab7bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling error-chain-utils-macros v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/error-chain-utils-macros-0.1.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `error-chain-utils-macros` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3866235bfcf93cc3be184bcc80d2318eda654efc7c0aa74a709b26e33e2ab7bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3866235bfcf93cc3be184bcc80d2318eda654efc7c0aa74a709b26e33e2ab7bc", kill_on_drop: false }`
[INFO] [stdout] 3866235bfcf93cc3be184bcc80d2318eda654efc7c0aa74a709b26e33e2ab7bc