[INFO] fetching crate fheanor 0.10.19...
[INFO] checking fheanor-0.10.19 against 1.95.0 for pr-155915
[INFO] extracting crate fheanor 0.10.19 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fheanor 0.10.19
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fheanor 0.10.19
[INFO] tweaked toml for crates.io crate fheanor 0.10.19 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fheanor 0.10.19 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 fheanor 0.10.19 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpp_build v0.5.10
[INFO] [stderr]   Downloaded feanor-math-hexl v0.2.6
[INFO] [stderr]   Downloaded tracing-chrome v0.7.2
[INFO] [stderr]   Downloaded atomicbox v0.4.0
[INFO] [stderr]   Downloaded feanor-mempool v2.1.0
[INFO] [stderr]   Downloaded cpp_macros v0.5.10
[INFO] [stderr]   Downloaded cpp_common v0.5.10
[INFO] [stderr]   Downloaded tracking-allocator v0.4.0
[INFO] [stderr]   Downloaded debugit v0.2.0
[INFO] [stderr]   Downloaded cpp v0.5.10
[INFO] [stderr]   Downloaded feanor-serde v0.1.5
[INFO] [stderr]   Downloaded serde_assert v0.8.0
[INFO] [stderr]   Downloaded feanor-math v3.5.15
[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] 828ea5f2ffbd745e1b7dac2f40ce74e5f4341d54550ce7dca5ff6e412008eb79
[INFO] running `Command { std: "docker" "start" "-a" "828ea5f2ffbd745e1b7dac2f40ce74e5f4341d54550ce7dca5ff6e412008eb79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "828ea5f2ffbd745e1b7dac2f40ce74e5f4341d54550ce7dca5ff6e412008eb79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828ea5f2ffbd745e1b7dac2f40ce74e5f4341d54550ce7dca5ff6e412008eb79", kill_on_drop: false }`
[INFO] [stdout] 828ea5f2ffbd745e1b7dac2f40ce74e5f4341d54550ce7dca5ff6e412008eb79
[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] 6ba0b61610bd7547f1c609a854d856c5721b4433fbdd82efd9bddf2e36cba808
[INFO] running `Command { std: "docker" "start" "-a" "6ba0b61610bd7547f1c609a854d856c5721b4433fbdd82efd9bddf2e36cba808", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking object v0.37.3
[INFO] [stderr]     Checking atomicbox v0.4.0
[INFO] [stderr]     Checking append-only-vec v0.1.8
[INFO] [stderr]     Checking feanor-mempool v2.1.0
[INFO] [stderr]     Checking debugit v0.2.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking serde_path_to_error v0.1.20
[INFO] [stderr]     Checking rand_distr v0.5.1
[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/feanor-mempool-2.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[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 `feanor-mempool` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/debugit-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[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 `debugit` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6ba0b61610bd7547f1c609a854d856c5721b4433fbdd82efd9bddf2e36cba808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba0b61610bd7547f1c609a854d856c5721b4433fbdd82efd9bddf2e36cba808", kill_on_drop: false }`
[INFO] [stdout] 6ba0b61610bd7547f1c609a854d856c5721b4433fbdd82efd9bddf2e36cba808