[INFO] cloning repository https://github.com/richardanaya/mahrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richardanaya/mahrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Fmahrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Fmahrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3b110e1382eb0af3a259637cbc2bc66f296ac95
[INFO] testing richardanaya/mahrs against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardanaya%2Fmahrs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/richardanaya/mahrs
[INFO] finished tweaking git repo https://github.com/richardanaya/mahrs
[INFO] tweaked toml for git repo https://github.com/richardanaya/mahrs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/richardanaya/mahrs on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/richardanaya/mahrs 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749
[INFO] running `Command { std: "docker" "start" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling http-client v6.3.5
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[INFO] [stderr]    Compiling chalk-recursive v0.60.0
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[INFO] [stderr]    Compiling evcxr v0.9.0
[INFO] [stderr]    Compiling mars v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/context_manager.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut core = context_collection.context_map.get_mut(&id).unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/context_manager.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut core = context_collection.context_map.get_mut(&id2).unwrap();
[INFO] [stdout]    |                         ----^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeResult` is never constructed
[INFO] [stdout]   --> src/context_manager.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct CodeResult {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 4m 11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: async-h1 v2.3.2, http-types v2.11.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling mars v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/context_manager.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut core = context_collection.context_map.get_mut(&id).unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/context_manager.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     let mut core = context_collection.context_map.get_mut(&id2).unwrap();
[INFO] [stdout]    |                         ----^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeResult` is never constructed
[INFO] [stdout]   --> src/context_manager.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct CodeResult {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: async-h1 v2.3.2, http-types v2.11.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] 
[INFO] [stderr]   --> src/context_manager.rs:46:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 46 |         let mut core = context_collection.context_map.get_mut(&id).unwrap();
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |             ----^^^^
[INFO] [stdout] 
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/context_manager.rs:64:25
[INFO] [stderr]    |
[INFO] [stderr] 64 |                     let mut core = context_collection.context_map.get_mut(&id2).unwrap();
[INFO] [stderr]    |                         ----^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CodeResult` is never constructed
[INFO] [stderr]   --> src/context_manager.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct CodeResult {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mars` (bin "mars" test) generated 3 warnings (run `cargo fix --bin "mars" -p mars --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: async-h1 v2.3.2, http-types v2.11.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/mars-a4c33b397bedb2e7)
[INFO] running `Command { std: "docker" "inspect" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749", kill_on_drop: false }`
[INFO] [stdout] 2090081e88f73586cbc10c853b82199cc26c2f3f67fd1637545392e8d6aa7749
