[INFO] fetching crate taplo 0.7.0...
[INFO] checking taplo-0.7.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate taplo 0.7.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate taplo 0.7.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate taplo 0.7.0
[INFO] finished tweaking crates.io crate taplo 0.7.0
[INFO] tweaked toml for crates.io crate taplo 0.7.0 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate taplo 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db3aaac8b902e2e0ad1a6247fe7de0491bb4fca054d9a34864c7b32ccf188486
[INFO] running `Command { std: "docker" "start" "-a" "db3aaac8b902e2e0ad1a6247fe7de0491bb4fca054d9a34864c7b32ccf188486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3aaac8b902e2e0ad1a6247fe7de0491bb4fca054d9a34864c7b32ccf188486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3aaac8b902e2e0ad1a6247fe7de0491bb4fca054d9a34864c7b32ccf188486", kill_on_drop: false }`
[INFO] [stdout] db3aaac8b902e2e0ad1a6247fe7de0491bb4fca054d9a34864c7b32ccf188486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa4b6dce14445af23bb4f0a3c7ad0da5472c0c4f2aada2431999997c2800fbe7
[INFO] running `Command { std: "docker" "start" "-a" "fa4b6dce14445af23bb4f0a3c7ad0da5472c0c4f2aada2431999997c2800fbe7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]     Checking countme v2.0.4
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking rowan v0.14.1
[INFO] [stderr]     Checking indexmap v1.7.0
[INFO] [stderr]     Checking assert-json-diff v2.0.1
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking taplo v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/benches.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `taplo` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fa4b6dce14445af23bb4f0a3c7ad0da5472c0c4f2aada2431999997c2800fbe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4b6dce14445af23bb4f0a3c7ad0da5472c0c4f2aada2431999997c2800fbe7", kill_on_drop: false }`
[INFO] [stdout] fa4b6dce14445af23bb4f0a3c7ad0da5472c0c4f2aada2431999997c2800fbe7
