[INFO] cloning repository https://github.com/SchweGELBin/byml-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SchweGELBin/byml-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchweGELBin%2Fbyml-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchweGELBin%2Fbyml-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deb3562a94ee6c139ceff02488f6393b4a5385eb
[INFO] checking SchweGELBin/byml-rs against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchweGELBin%2Fbyml-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SchweGELBin/byml-rs
[INFO] finished tweaking git repo https://github.com/SchweGELBin/byml-rs
[INFO] tweaked toml for git repo https://github.com/SchweGELBin/byml-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SchweGELBin/byml-rs 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 git repo https://github.com/SchweGELBin/byml-rs 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 parse_int v0.4.0
[INFO] [stderr]   Downloaded paste v0.1.18
[INFO] [stderr]   Downloaded cached v0.20.0
[INFO] [stderr]   Downloaded binwrite v0.2.1
[INFO] [stderr]   Downloaded paste-impl v0.1.18
[INFO] [stderr]   Downloaded binwrite_derive v0.2.1
[INFO] [stderr]   Downloaded yaz0 v0.1.2
[INFO] [stderr]   Downloaded binread_derive v1.4.3
[INFO] [stderr]   Downloaded memchr v2.7.3
[INFO] [stderr]   Downloaded binread v1.4.1
[INFO] [stderr]   Downloaded cached_proc_macro v0.4.0
[INFO] [stderr]   Downloaded byml v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6658c5378d4ef26fe2d821ebef87f4c07a4ae219b6cf57eb85126e71c4adcac9
[INFO] running `Command { std: "docker" "start" "-a" "6658c5378d4ef26fe2d821ebef87f4c07a4ae219b6cf57eb85126e71c4adcac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6658c5378d4ef26fe2d821ebef87f4c07a4ae219b6cf57eb85126e71c4adcac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6658c5378d4ef26fe2d821ebef87f4c07a4ae219b6cf57eb85126e71c4adcac9", kill_on_drop: false }`
[INFO] [stdout] 6658c5378d4ef26fe2d821ebef87f4c07a4ae219b6cf57eb85126e71c4adcac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6efd42285ac9cb6200985b0e34c4d5072f2f06e98cd8e195dfe8c8d70204d930
[INFO] running `Command { std: "docker" "start" "-a" "6efd42285ac9cb6200985b0e34c4d5072f2f06e98cd8e195dfe8c8d70204d930", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking memchr v2.7.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling binread_derive v1.4.3
[INFO] [stderr]    Compiling binwrite_derive v0.2.1
[INFO] [stderr]     Checking parse_int v0.4.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking yaz0 v0.1.2
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking binwrite v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling cached_proc_macro v0.4.0
[INFO] [stderr]     Checking binread v1.4.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.61
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking cached v0.20.0
[INFO] [stderr]     Checking byml v0.1.4
[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/byml-0.1.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(seek_convenience)]
[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 `byml` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6efd42285ac9cb6200985b0e34c4d5072f2f06e98cd8e195dfe8c8d70204d930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6efd42285ac9cb6200985b0e34c4d5072f2f06e98cd8e195dfe8c8d70204d930", kill_on_drop: false }`
[INFO] [stdout] 6efd42285ac9cb6200985b0e34c4d5072f2f06e98cd8e195dfe8c8d70204d930