[INFO] fetching crate rpn-c 0.2.3...
[INFO] testing rpn-c-0.2.3 against 1.69.0 for beta-1.70-1
[INFO] extracting crate rpn-c 0.2.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rpn-c 0.2.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rpn-c 0.2.3
[INFO] finished tweaking crates.io crate rpn-c 0.2.3
[INFO] tweaked toml for crates.io crate rpn-c 0.2.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rpn-c 0.2.3 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ieee754 v0.2.6
[INFO] [stderr]   Downloaded rustc-cfg v0.4.0
[INFO] [stderr]   Downloaded beef v0.5.1
[INFO] [stderr]   Downloaded logos v0.12.0
[INFO] [stderr]   Downloaded fd-lock v3.0.0
[INFO] [stderr]   Downloaded synstructure v0.12.5
[INFO] [stderr]   Downloaded logos-derive v0.12.0
[INFO] [stderr]   Downloaded clipboard-win v4.2.1
[INFO] [stderr]   Downloaded ramp v0.7.0
[INFO] [stderr]   Downloaded nix v0.22.2
[INFO] [stderr]   Downloaded rustyline v9.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7d8832192c03806f710458b697dd0660e70ba157293e32c34a2b9a954cf7a9d
[INFO] running `Command { std: "docker" "start" "-a" "e7d8832192c03806f710458b697dd0660e70ba157293e32c34a2b9a954cf7a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7d8832192c03806f710458b697dd0660e70ba157293e32c34a2b9a954cf7a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d8832192c03806f710458b697dd0660e70ba157293e32c34a2b9a954cf7a9d", kill_on_drop: false }`
[INFO] [stdout] e7d8832192c03806f710458b697dd0660e70ba157293e32c34a2b9a954cf7a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 213d09a69138efc144f969bcfd93e6eb7c1eaeabde126701bdedd0138ea6ad60
[INFO] running `Command { std: "docker" "start" "-a" "213d09a69138efc144f969bcfd93e6eb7c1eaeabde126701bdedd0138ea6ad60", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.78
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling ieee754 v0.2.6
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling fd-lock v3.0.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.22.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling directories v3.0.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling rustyline v9.0.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling rustyline-derive v0.4.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rustc-cfg v0.4.0
[INFO] [stderr]    Compiling ramp v0.7.0
[INFO] [stderr]    Compiling logos v0.12.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(core_intrinsics, allocator_api)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:24:29
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(core_intrinsics, allocator_api)]
[INFO] [stdout]    |                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(step_trait, ptr_internals, try_reserve_kind, raw_vec_internals)]
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(step_trait, ptr_internals, try_reserve_kind, raw_vec_internals)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:25:39
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(step_trait, ptr_internals, try_reserve_kind, raw_vec_internals)]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.7.0/src/lib.rs:25:57
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(step_trait, ptr_internals, try_reserve_kind, raw_vec_internals)]
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ramp` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "213d09a69138efc144f969bcfd93e6eb7c1eaeabde126701bdedd0138ea6ad60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213d09a69138efc144f969bcfd93e6eb7c1eaeabde126701bdedd0138ea6ad60", kill_on_drop: false }`
[INFO] [stdout] 213d09a69138efc144f969bcfd93e6eb7c1eaeabde126701bdedd0138ea6ad60
