[INFO] updating cached repository leizongmin/tvm-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leizongmin/tvm-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leizongmin/tvm-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/leizongmin/tvm-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/leizongmin/tvm-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leizongmin/tvm-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e443173d5623ed6c0d0129c909aa4a6a10567866
[INFO] sha for GitHub repo leizongmin/tvm-rust: e443173d5623ed6c0d0129c909aa4a6a10567866
[INFO] validating manifest of leizongmin/tvm-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of leizongmin/tvm-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing leizongmin/tvm-rust
[INFO] finished frobbing leizongmin/tvm-rust
[INFO] frobbed toml for leizongmin/tvm-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/leizongmin/tvm-rust/Cargo.toml
[INFO] started frobbing leizongmin/tvm-rust
[INFO] finished frobbing leizongmin/tvm-rust
[INFO] frobbed toml for leizongmin/tvm-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust/Cargo.toml
[INFO] crate leizongmin/tvm-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing leizongmin/tvm-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 552a59530720993384b7e36e6be7e922a1c6dc3db1b7579d0b5aacff5a427321
[INFO] running `"docker" "start" "-a" "552a59530720993384b7e36e6be7e922a1c6dc3db1b7579d0b5aacff5a427321"`
[INFO] [stderr]    Compiling tvm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut c = Context::new();
[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 1.58s
[INFO] running `"docker" "inspect" "552a59530720993384b7e36e6be7e922a1c6dc3db1b7579d0b5aacff5a427321"`
[INFO] running `"docker" "rm" "-f" "552a59530720993384b7e36e6be7e922a1c6dc3db1b7579d0b5aacff5a427321"`
[INFO] [stdout] 552a59530720993384b7e36e6be7e922a1c6dc3db1b7579d0b5aacff5a427321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b46e74562ae4ef2dfc0d8f0c339388da0bb5fb41aea5fb9264c3b78ac2ae1df8
[INFO] running `"docker" "start" "-a" "b46e74562ae4ef2dfc0d8f0c339388da0bb5fb41aea5fb9264c3b78ac2ae1df8"`
[INFO] [stderr]    Compiling tvm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut c = Context::new();
[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 1.26s
[INFO] running `"docker" "inspect" "b46e74562ae4ef2dfc0d8f0c339388da0bb5fb41aea5fb9264c3b78ac2ae1df8"`
[INFO] running `"docker" "rm" "-f" "b46e74562ae4ef2dfc0d8f0c339388da0bb5fb41aea5fb9264c3b78ac2ae1df8"`
[INFO] [stdout] b46e74562ae4ef2dfc0d8f0c339388da0bb5fb41aea5fb9264c3b78ac2ae1df8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/leizongmin/tvm-rust:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2163f792844ee3453836c02744f7b340cab6875b429686b564832aa9cb715cd7
[INFO] running `"docker" "start" "-a" "2163f792844ee3453836c02744f7b340cab6875b429686b564832aa9cb715cd7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tvm-518ea27dd5b3b0cb
[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] [stderr]      Running /opt/crater/target/debug/deps/tvm-59bba4410c484a2f
[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] [stderr]    Doc-tests tvm
[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" "2163f792844ee3453836c02744f7b340cab6875b429686b564832aa9cb715cd7"`
[INFO] running `"docker" "rm" "-f" "2163f792844ee3453836c02744f7b340cab6875b429686b564832aa9cb715cd7"`
[INFO] [stdout] 2163f792844ee3453836c02744f7b340cab6875b429686b564832aa9cb715cd7