[INFO] updating cached repository ypkulkar/infix_to_postfix
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ypkulkar/infix_to_postfix
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ypkulkar/infix_to_postfix" "work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ypkulkar/infix_to_postfix" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ypkulkar/infix_to_postfix"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ypkulkar/infix_to_postfix'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8182f88e20c8d721cef222f0bb8abe55b63614e1
[INFO] sha for GitHub repo ypkulkar/infix_to_postfix: 8182f88e20c8d721cef222f0bb8abe55b63614e1
[INFO] validating manifest of ypkulkar/infix_to_postfix 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 ypkulkar/infix_to_postfix 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 ypkulkar/infix_to_postfix
[INFO] finished frobbing ypkulkar/infix_to_postfix
[INFO] frobbed toml for ypkulkar/infix_to_postfix written to work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix/Cargo.toml
[INFO] started frobbing ypkulkar/infix_to_postfix
[INFO] finished frobbing ypkulkar/infix_to_postfix
[INFO] frobbed toml for ypkulkar/infix_to_postfix written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ypkulkar/infix_to_postfix/Cargo.toml
[INFO] crate ypkulkar/infix_to_postfix 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 ypkulkar/infix_to_postfix 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix:/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] 57ead3463ba3d0034d26ab8909c0e3f1a3433161ebcb8bd7005e6eb1eb900046
[INFO] running `"docker" "start" "-a" "57ead3463ba3d0034d26ab8909c0e3f1a3433161ebcb8bd7005e6eb1eb900046"`
[INFO] [stderr]    Compiling your v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |                &InfixToken::Operand(x) => {
[INFO] [stderr]     |                                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:140:29
[INFO] [stderr]     |
[INFO] [stderr] 140 |                &InfixToken::Operator(x) => {
[INFO] [stderr]     |                                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:172:31
[INFO] [stderr]     |
[INFO] [stderr] 172 |                             InfixToken::Operand(x) => break,
[INFO] [stderr]     |                                                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "57ead3463ba3d0034d26ab8909c0e3f1a3433161ebcb8bd7005e6eb1eb900046"`
[INFO] running `"docker" "rm" "-f" "57ead3463ba3d0034d26ab8909c0e3f1a3433161ebcb8bd7005e6eb1eb900046"`
[INFO] [stdout] 57ead3463ba3d0034d26ab8909c0e3f1a3433161ebcb8bd7005e6eb1eb900046
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix:/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] 8ad3442f18ad6f6fca5dca056979e06c2125abc91b44eb954b326131334b1e6d
[INFO] running `"docker" "start" "-a" "8ad3442f18ad6f6fca5dca056979e06c2125abc91b44eb954b326131334b1e6d"`
[INFO] [stderr]    Compiling your v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |                &InfixToken::Operand(x) => {
[INFO] [stderr]     |                                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:140:29
[INFO] [stderr]     |
[INFO] [stderr] 140 |                &InfixToken::Operator(x) => {
[INFO] [stderr]     |                                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:172:31
[INFO] [stderr]     |
[INFO] [stderr] 172 |                             InfixToken::Operand(x) => break,
[INFO] [stderr]     |                                                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "8ad3442f18ad6f6fca5dca056979e06c2125abc91b44eb954b326131334b1e6d"`
[INFO] running `"docker" "rm" "-f" "8ad3442f18ad6f6fca5dca056979e06c2125abc91b44eb954b326131334b1e6d"`
[INFO] [stdout] 8ad3442f18ad6f6fca5dca056979e06c2125abc91b44eb954b326131334b1e6d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ypkulkar/infix_to_postfix:/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] b12107a07da058f71eb390792570c5797ba8d937a635286cf6cb7e35039cfdf3
[INFO] running `"docker" "start" "-a" "b12107a07da058f71eb390792570c5797ba8d937a635286cf6cb7e35039cfdf3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/your-0c9fdd7dc397b2e1
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_works1 ... ok
[INFO] [stdout] test tests::it_works2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests your
[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" "b12107a07da058f71eb390792570c5797ba8d937a635286cf6cb7e35039cfdf3"`
[INFO] running `"docker" "rm" "-f" "b12107a07da058f71eb390792570c5797ba8d937a635286cf6cb7e35039cfdf3"`
[INFO] [stdout] b12107a07da058f71eb390792570c5797ba8d937a635286cf6cb7e35039cfdf3