[INFO] cloning repository https://github.com/synchronal/medic-ext-tool-versions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/synchronal/medic-ext-tool-versions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-tool-versions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-tool-versions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bf17a9081fb07195758b2b32fbd5f4c9af0fb79
[INFO] checking synchronal/medic-ext-tool-versions against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsynchronal%2Fmedic-ext-tool-versions" "/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/synchronal/medic-ext-tool-versions
[INFO] finished tweaking git repo https://github.com/synchronal/medic-ext-tool-versions
[INFO] tweaked toml for git repo https://github.com/synchronal/medic-ext-tool-versions written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/synchronal/medic-ext-tool-versions 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/synchronal/medic-ext-tool-versions 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 medic-lib v0.3.0
[INFO] [stderr]   Downloaded terminal_size v0.4.4
[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] c059fa5f169611e5b8a9d58517c675d1e7d8f048e54d71bcc923ece39131f397
[INFO] running `Command { std: "docker" "start" "-a" "c059fa5f169611e5b8a9d58517c675d1e7d8f048e54d71bcc923ece39131f397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c059fa5f169611e5b8a9d58517c675d1e7d8f048e54d71bcc923ece39131f397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c059fa5f169611e5b8a9d58517c675d1e7d8f048e54d71bcc923ece39131f397", kill_on_drop: false }`
[INFO] [stdout] c059fa5f169611e5b8a9d58517c675d1e7d8f048e54d71bcc923ece39131f397
[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] 004fd3152d910f3160309b12415133c9817be5250df7d6ef3711c278db9b9ab4
[INFO] running `Command { std: "docker" "start" "-a" "004fd3152d910f3160309b12415133c9817be5250df7d6ef3711c278db9b9ab4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking unicase v2.9.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking terminal_size v0.4.4
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling clap_derive v4.6.1
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking medic-lib v0.3.0
[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/medic-lib-0.3.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(try_trait_v2, try_trait_v2_residual)]
[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 `medic-lib` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "004fd3152d910f3160309b12415133c9817be5250df7d6ef3711c278db9b9ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004fd3152d910f3160309b12415133c9817be5250df7d6ef3711c278db9b9ab4", kill_on_drop: false }`
[INFO] [stdout] 004fd3152d910f3160309b12415133c9817be5250df7d6ef3711c278db9b9ab4
