[INFO] updating cached repository https://github.com/takluyver/calcurust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1f264bdac56c1bf45cd3cec9f49610f0cf0b9d6
[INFO] testing takluyver/calcurust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakluyver%2Fcalcurust" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takluyver/calcurust on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/takluyver/calcurust
[INFO] finished tweaking git repo https://github.com/takluyver/calcurust
[INFO] tweaked toml for git repo https://github.com/takluyver/calcurust written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/takluyver/calcurust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] ba0436a11d2256f7835ec40587058e2ca877877e4fff543f3780c298607d4e8b
[INFO] running `"docker" "start" "-a" "ba0436a11d2256f7835ec40587058e2ca877877e4fff543f3780c298607d4e8b"`
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling serde v0.9.7
[INFO] [stderr]    Compiling syntex_pos v0.54.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling syntex_errors v0.54.0
[INFO] [stderr]    Compiling zmq-sys v0.8.1
[INFO] [stderr]    Compiling syntex_syntax v0.54.0
[INFO] [stderr]    Compiling zmq v0.8.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling serde_json v0.9.6
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling syntex v0.54.0
[INFO] [stderr]    Compiling serde_codegen v0.9.0
[INFO] [stderr]    Compiling calcurust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Heartbeat`
[INFO] [stderr]   --> src/messaging.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     Heartbeat,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Control`
[INFO] [stderr]   --> src/messaging.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     Control,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `input_line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn input_line(prompt: &str) -> Result<String, std::io::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_cmdline`
[INFO] [stderr]   --> src/main.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn main_cmdline() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.84s
[INFO] running `"docker" "inspect" "ba0436a11d2256f7835ec40587058e2ca877877e4fff543f3780c298607d4e8b"`
[INFO] running `"docker" "rm" "-f" "ba0436a11d2256f7835ec40587058e2ca877877e4fff543f3780c298607d4e8b"`
[INFO] [stdout] ba0436a11d2256f7835ec40587058e2ca877877e4fff543f3780c298607d4e8b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a5df7558225eaaf870e0b6beb6219f00284cb0121430ad36444df94f9b0cca4e
[INFO] running `"docker" "start" "-a" "a5df7558225eaaf870e0b6beb6219f00284cb0121430ad36444df94f9b0cca4e"`
[INFO] [stderr]    Compiling calcurust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Heartbeat`
[INFO] [stderr]   --> src/messaging.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     Heartbeat,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Control`
[INFO] [stderr]   --> src/messaging.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     Control,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `input_line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn input_line(prompt: &str) -> Result<String, std::io::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_cmdline`
[INFO] [stderr]   --> src/main.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn main_cmdline() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "a5df7558225eaaf870e0b6beb6219f00284cb0121430ad36444df94f9b0cca4e"`
[INFO] running `"docker" "rm" "-f" "a5df7558225eaaf870e0b6beb6219f00284cb0121430ad36444df94f9b0cca4e"`
[INFO] [stdout] a5df7558225eaaf870e0b6beb6219f00284cb0121430ad36444df94f9b0cca4e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] b6289c6400b1447e276659fd7f673d7b743544e4ffbf036f0f604ede41d8567d
[INFO] running `"docker" "start" "-a" "b6289c6400b1447e276659fd7f673d7b743544e4ffbf036f0f604ede41d8567d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/calcurust-f7ca41951f814ece
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b6289c6400b1447e276659fd7f673d7b743544e4ffbf036f0f604ede41d8567d"`
[INFO] running `"docker" "rm" "-f" "b6289c6400b1447e276659fd7f673d7b743544e4ffbf036f0f604ede41d8567d"`
[INFO] [stdout] b6289c6400b1447e276659fd7f673d7b743544e4ffbf036f0f604ede41d8567d