[INFO] fetching crate legacytranslate 0.3.1...
[INFO] checking legacytranslate-0.3.1 against 1.95.0 for pr-155915
[INFO] extracting crate legacytranslate 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate legacytranslate 0.3.1
[INFO] finished tweaking crates.io crate legacytranslate 0.3.1
[INFO] tweaked toml for crates.io crate legacytranslate 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate legacytranslate 0.3.1 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 38 packages to latest compatible versions
[INFO] [stderr]       Adding fluent v0.16.1 (available: v0.17.0)
[INFO] [stderr]       Adding fluent-syntax v0.11.1 (available: v0.12.0)
[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 intl-memoizer v0.5.3
[INFO] [stderr]   Downloaded fluent v0.16.1
[INFO] [stderr]   Downloaded diskit v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ce1dfd05ba7a0242750bf185b3e01bb7f80366b6adfce0d714251cd06cdc868d
[INFO] running `Command { std: "docker" "start" "-a" "ce1dfd05ba7a0242750bf185b3e01bb7f80366b6adfce0d714251cd06cdc868d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce1dfd05ba7a0242750bf185b3e01bb7f80366b6adfce0d714251cd06cdc868d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1dfd05ba7a0242750bf185b3e01bb7f80366b6adfce0d714251cd06cdc868d", kill_on_drop: false }`
[INFO] [stdout] ce1dfd05ba7a0242750bf185b3e01bb7f80366b6adfce0d714251cd06cdc868d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 388c02006c5240ea55fca05d1afd31098a297416274dd16d483ab206f69242d9
[INFO] running `Command { std: "docker" "start" "-a" "388c02006c5240ea55fca05d1afd31098a297416274dd16d483ab206f69242d9", kill_on_drop: false }`
[INFO] [stderr]     Checking self_cell v1.2.2
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]     Checking type-map v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking diskit v0.1.5
[INFO] [stderr]     Checking tinystr v0.8.3
[INFO] [stderr]     Checking fluent-syntax v0.11.1
[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/diskit-0.1.5/src/lib.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | #![feature(io_error_more)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unic-langid-impl v0.9.6
[INFO] [stderr]     Checking self_cell v0.10.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diskit` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "388c02006c5240ea55fca05d1afd31098a297416274dd16d483ab206f69242d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388c02006c5240ea55fca05d1afd31098a297416274dd16d483ab206f69242d9", kill_on_drop: false }`
[INFO] [stdout] 388c02006c5240ea55fca05d1afd31098a297416274dd16d483ab206f69242d9
