[INFO] cloning repository https://github.com/jeremybobbin/jump
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremybobbin/jump" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremybobbin%2Fjump", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremybobbin%2Fjump'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5849545d8e636708c7ea688e4ce6ac73d714c9d8
[INFO] testing jeremybobbin/jump against 1.95.0 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremybobbin%2Fjump" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jeremybobbin/jump
[INFO] finished tweaking git repo https://github.com/jeremybobbin/jump
[INFO] tweaked toml for git repo https://github.com/jeremybobbin/jump written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jeremybobbin/jump 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/jeremybobbin/jump 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9c0fcf9190b3ea478deaec5fc6b0a29c73d5e8edaaf0426b882d90b7a77abe34
[INFO] running `Command { std: "docker" "start" "-a" "9c0fcf9190b3ea478deaec5fc6b0a29c73d5e8edaaf0426b882d90b7a77abe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c0fcf9190b3ea478deaec5fc6b0a29c73d5e8edaaf0426b882d90b7a77abe34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c0fcf9190b3ea478deaec5fc6b0a29c73d5e8edaaf0426b882d90b7a77abe34", kill_on_drop: false }`
[INFO] [stdout] 9c0fcf9190b3ea478deaec5fc6b0a29c73d5e8edaaf0426b882d90b7a77abe34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7491de78e6829d8a6bc1283f52942df84f6963d3772b3a811f70f3f5c43ff121
[INFO] running `Command { std: "docker" "start" "-a" "7491de78e6829d8a6bc1283f52942df84f6963d3772b3a811f70f3f5c43ff121", kill_on_drop: false }`
[INFO] [stderr]    Compiling jump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_error_matching)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_error_matching` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_error_matching)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 89 |                     return 1;
[INFO] [stdout]    |                     -------- any code following this expression is unreachable
[INFO] [stdout] 90 |                     eprintln!("Defaulting to 1");
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jump` (bin "jump") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7491de78e6829d8a6bc1283f52942df84f6963d3772b3a811f70f3f5c43ff121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7491de78e6829d8a6bc1283f52942df84f6963d3772b3a811f70f3f5c43ff121", kill_on_drop: false }`
[INFO] [stdout] 7491de78e6829d8a6bc1283f52942df84f6963d3772b3a811f70f3f5c43ff121