[INFO] cloning repository https://github.com/lhjok/Calc-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lhjok/Calc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhjok%2FCalc-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhjok%2FCalc-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bdf8d65744f28ff0ae3fdd17bf5274c9b2a5499b
[INFO] checking lhjok/Calc-rs against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flhjok%2FCalc-rs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lhjok/Calc-rs on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lhjok/Calc-rs
[INFO] finished tweaking git repo https://github.com/lhjok/Calc-rs
[INFO] tweaked toml for git repo https://github.com/lhjok/Calc-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9754c6b4716754d7a94f64c68d42ba47fae0cb4b6949c0cb864233a7e2b9c416
[INFO] running `"docker" "start" "-a" "9754c6b4716754d7a94f64c68d42ba47fae0cb4b6949c0cb864233a7e2b9c416"`
[INFO] [stderr]    Compiling rug v1.6.0
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]     Checking Calc v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut res = Float::new(2560);
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sign` is never read
[INFO] [stderr]    --> src/lib.rs:155:33
[INFO] [stderr]     |
[INFO] [stderr] 155 | ...                   sign = b'A';
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sign` is never read
[INFO] [stderr]    --> src/lib.rs:244:33
[INFO] [stderr]     |
[INFO] [stderr] 244 | ...                   sign = b'A';
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/lib.rs:264:33
[INFO] [stderr]     |
[INFO] [stderr] 264 |                         let mut res = Float::new(2560);
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/lib.rs:291:33
[INFO] [stderr]     |
[INFO] [stderr] 291 |                         let mut res = Float::new(2560);
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calc` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calc`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut res = Float::new(2560);
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sign` is never read
[INFO] [stderr]    --> src/lib.rs:155:33
[INFO] [stderr]     |
[INFO] [stderr] 155 | ...                   sign = b'A';
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sign` is never read
[INFO] [stderr]    --> src/lib.rs:244:33
[INFO] [stderr]     |
[INFO] [stderr] 244 | ...                   sign = b'A';
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/lib.rs:264:33
[INFO] [stderr]     |
[INFO] [stderr] 264 |                         let mut res = Float::new(2560);
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/lib.rs:291:33
[INFO] [stderr]     |
[INFO] [stderr] 291 |                         let mut res = Float::new(2560);
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calc` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calc`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calc` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calc`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calc` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calc`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 51s
[INFO] running `"docker" "inspect" "9754c6b4716754d7a94f64c68d42ba47fae0cb4b6949c0cb864233a7e2b9c416"`
[INFO] running `"docker" "rm" "-f" "9754c6b4716754d7a94f64c68d42ba47fae0cb4b6949c0cb864233a7e2b9c416"`
[INFO] [stdout] 9754c6b4716754d7a94f64c68d42ba47fae0cb4b6949c0cb864233a7e2b9c416