[INFO] updating cached repository 1derless/lmc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/1derless/lmc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/1derless/lmc" "work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/1derless/lmc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1derless/lmc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1derless/lmc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11eb8d79cc668aff6174c10830617fa3c7a1a48e
[INFO] sha for GitHub repo 1derless/lmc: 11eb8d79cc668aff6174c10830617fa3c7a1a48e
[INFO] validating manifest of 1derless/lmc on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of 1derless/lmc on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing 1derless/lmc
[INFO] finished frobbing 1derless/lmc
[INFO] frobbed toml for 1derless/lmc written to work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc/Cargo.toml
[INFO] started frobbing 1derless/lmc
[INFO] finished frobbing 1derless/lmc
[INFO] frobbed toml for 1derless/lmc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1derless/lmc/Cargo.toml
[INFO] crate 1derless/lmc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing 1derless/lmc against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 312d2ea7525639d0b029f11acd4ddd6fef4bc04084b878d9ea643731f7131592
[INFO] running `"docker" "start" "-a" "312d2ea7525639d0b029f11acd4ddd6fef4bc04084b878d9ea643731f7131592"`
[INFO] [stderr]    Compiling lmc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for mut v in array.iter_mut() {
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "312d2ea7525639d0b029f11acd4ddd6fef4bc04084b878d9ea643731f7131592"`
[INFO] running `"docker" "rm" "-f" "312d2ea7525639d0b029f11acd4ddd6fef4bc04084b878d9ea643731f7131592"`
[INFO] [stdout] 312d2ea7525639d0b029f11acd4ddd6fef4bc04084b878d9ea643731f7131592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b61997bff57ea2f91aa23d8c39b2d7904a2fa0f35a88ae9f969938ee45f95c89
[INFO] running `"docker" "start" "-a" "b61997bff57ea2f91aa23d8c39b2d7904a2fa0f35a88ae9f969938ee45f95c89"`
[INFO] [stderr]    Compiling lmc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for mut v in array.iter_mut() {
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "b61997bff57ea2f91aa23d8c39b2d7904a2fa0f35a88ae9f969938ee45f95c89"`
[INFO] running `"docker" "rm" "-f" "b61997bff57ea2f91aa23d8c39b2d7904a2fa0f35a88ae9f969938ee45f95c89"`
[INFO] [stdout] b61997bff57ea2f91aa23d8c39b2d7904a2fa0f35a88ae9f969938ee45f95c89
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/1derless/lmc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3cc4dbe69c04d0832445c442cc41fc3c80b5d603a806b566dacfa9ba6fc3770c
[INFO] running `"docker" "start" "-a" "3cc4dbe69c04d0832445c442cc41fc3c80b5d603a806b566dacfa9ba6fc3770c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lmc-446d5e6863fe4f91
[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" "3cc4dbe69c04d0832445c442cc41fc3c80b5d603a806b566dacfa9ba6fc3770c"`
[INFO] running `"docker" "rm" "-f" "3cc4dbe69c04d0832445c442cc41fc3c80b5d603a806b566dacfa9ba6fc3770c"`
[INFO] [stdout] 3cc4dbe69c04d0832445c442cc41fc3c80b5d603a806b566dacfa9ba6fc3770c