[INFO] updating cached repository mblk/hello-world [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mblk/hello-world [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mblk/hello-world" "work/ex/beta-1.37-6/sources/1.36.0/gh/mblk/hello-world"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mblk/hello-world'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mblk/hello-world" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mblk/hello-world"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mblk/hello-world'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 660282ebe8723834261f79d1195e8ee1c2f59bd2 [INFO] sha for GitHub repo mblk/hello-world: 660282ebe8723834261f79d1195e8ee1c2f59bd2 [INFO] validating manifest of mblk/hello-world 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 mblk/hello-world 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 mblk/hello-world [INFO] finished frobbing mblk/hello-world [INFO] frobbed toml for mblk/hello-world written to work/ex/beta-1.37-6/sources/1.36.0/gh/mblk/hello-world/Cargo.toml [INFO] started frobbing mblk/hello-world [INFO] finished frobbing mblk/hello-world [INFO] frobbed toml for mblk/hello-world written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mblk/hello-world/Cargo.toml [INFO] crate mblk/hello-world 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] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing mblk/hello-world 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-1/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/mblk/hello-world:/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] 90ee4069026a9b5783cd86f0a07adef21a0099d7947c2183a0456f31c79165e5 [INFO] running `"docker" "start" "-a" "90ee4069026a9b5783cd86f0a07adef21a0099d7947c2183a0456f31c79165e5"` [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::cmp` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `t2` is never read [INFO] [stderr] --> src/main.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let mut t2: (i32,i32) = (333,444); [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: unused variable: `f` [INFO] [stderr] --> src/main.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | let f = Foo { x: y }; // ---+ f goes into scope [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:104:9 [INFO] [stderr] | [INFO] [stderr] 104 | let x: &'static i32 = &FOO; // reference to data section of binary [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `str1` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let str1: &'static str = "qwiojdqoiwjd"; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_str1` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/main.rs:110:5 [INFO] [stderr] | [INFO] [stderr] 110 | x: &'a i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `"docker" "inspect" "90ee4069026a9b5783cd86f0a07adef21a0099d7947c2183a0456f31c79165e5"` [INFO] running `"docker" "rm" "-f" "90ee4069026a9b5783cd86f0a07adef21a0099d7947c2183a0456f31c79165e5"` [INFO] [stdout] 90ee4069026a9b5783cd86f0a07adef21a0099d7947c2183a0456f31c79165e5 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mblk/hello-world:/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] fe8dfe0ff4b97c39394a64fa6083b63e16ee40895480767fe6523c5758a9cdd5 [INFO] running `"docker" "start" "-a" "fe8dfe0ff4b97c39394a64fa6083b63e16ee40895480767fe6523c5758a9cdd5"` [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::cmp` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `t2` is never read [INFO] [stderr] --> src/main.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let mut t2: (i32,i32) = (333,444); [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: unused variable: `f` [INFO] [stderr] --> src/main.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | let f = Foo { x: y }; // ---+ f goes into scope [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:104:9 [INFO] [stderr] | [INFO] [stderr] 104 | let x: &'static i32 = &FOO; // reference to data section of binary [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `str1` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let str1: &'static str = "qwiojdqoiwjd"; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_str1` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/main.rs:110:5 [INFO] [stderr] | [INFO] [stderr] 110 | x: &'a i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `"docker" "inspect" "fe8dfe0ff4b97c39394a64fa6083b63e16ee40895480767fe6523c5758a9cdd5"` [INFO] running `"docker" "rm" "-f" "fe8dfe0ff4b97c39394a64fa6083b63e16ee40895480767fe6523c5758a9cdd5"` [INFO] [stdout] fe8dfe0ff4b97c39394a64fa6083b63e16ee40895480767fe6523c5758a9cdd5 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mblk/hello-world:/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] 64b45714254e99a7dd395da9ce7ec6960ea609a36fd34d91ab14752930099a24 [INFO] running `"docker" "start" "-a" "64b45714254e99a7dd395da9ce7ec6960ea609a36fd34d91ab14752930099a24"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/hello_world-32ca29bbe05b8115 [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" "64b45714254e99a7dd395da9ce7ec6960ea609a36fd34d91ab14752930099a24"` [INFO] running `"docker" "rm" "-f" "64b45714254e99a7dd395da9ce7ec6960ea609a36fd34d91ab14752930099a24"` [INFO] [stdout] 64b45714254e99a7dd395da9ce7ec6960ea609a36fd34d91ab14752930099a24