[INFO] fetching crate jhon 1.0.0...
[INFO] checking jhon-1.0.0 against 1.95.0 for pr-155915
[INFO] extracting crate jhon 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate jhon 1.0.0
[INFO] finished tweaking crates.io crate jhon 1.0.0
[INFO] tweaked toml for crates.io crate jhon 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate jhon 1.0.0 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] crate crates.io crate jhon 1.0.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v1.0.22
[INFO] [stderr]   Downloaded zmij v1.0.14
[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] 8f4e8bb2824c67cb0511125b890411c4e212d53f5d4324cf8a0ea0d27fa3f607
[INFO] running `Command { std: "docker" "start" "-a" "8f4e8bb2824c67cb0511125b890411c4e212d53f5d4324cf8a0ea0d27fa3f607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f4e8bb2824c67cb0511125b890411c4e212d53f5d4324cf8a0ea0d27fa3f607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4e8bb2824c67cb0511125b890411c4e212d53f5d4324cf8a0ea0d27fa3f607", kill_on_drop: false }`
[INFO] [stdout] 8f4e8bb2824c67cb0511125b890411c4e212d53f5d4324cf8a0ea0d27fa3f607
[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] 9c5ef9746c0ab1323ec1dec5b3629da63179ff1b24783167b150f54db670e1a0
[INFO] running `Command { std: "docker" "start" "-a" "9c5ef9746c0ab1323ec1dec5b3629da63179ff1b24783167b150f54db670e1a0", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking itoa v1.0.17
[INFO] [stderr]     Checking ryu v1.0.22
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking jhon v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/benchmark.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(test)]
[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 `jhon` (bench "benchmark") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9c5ef9746c0ab1323ec1dec5b3629da63179ff1b24783167b150f54db670e1a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5ef9746c0ab1323ec1dec5b3629da63179ff1b24783167b150f54db670e1a0", kill_on_drop: false }`
[INFO] [stdout] 9c5ef9746c0ab1323ec1dec5b3629da63179ff1b24783167b150f54db670e1a0
