[INFO] updating cached repository erikbrinkman/cdasim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erikbrinkman/cdasim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erikbrinkman/cdasim" "work/ex/beta-1.38-1/sources/1.37.0/gh/erikbrinkman/cdasim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/erikbrinkman/cdasim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erikbrinkman/cdasim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70e620ae85a44b9dd3b5ae43a76963b13f745701
[INFO] sha for GitHub repo erikbrinkman/cdasim: 70e620ae85a44b9dd3b5ae43a76963b13f745701
[INFO] validating manifest of erikbrinkman/cdasim 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 erikbrinkman/cdasim 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 erikbrinkman/cdasim
[INFO] finished frobbing erikbrinkman/cdasim
[INFO] frobbed toml for erikbrinkman/cdasim written to work/ex/beta-1.38-1/sources/1.37.0/gh/erikbrinkman/cdasim/Cargo.toml
[INFO] started frobbing erikbrinkman/cdasim
[INFO] finished frobbing erikbrinkman/cdasim
[INFO] frobbed toml for erikbrinkman/cdasim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim/Cargo.toml
[INFO] crate erikbrinkman/cdasim 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 erikbrinkman/cdasim against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 14ef02a225240df79f4132f9670132d1c5a9808932bab636d26b760c3ed545f5
[INFO] running `"docker" "start" "-a" "14ef02a225240df79f4132f9670132d1c5a9808932bab636d26b760c3ed545f5"`
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling cdasim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/market.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     let mut seller = sells.pop().unwrap();
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/market.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     let mut buyer = buys.pop().unwrap();
[INFO] [stderr]    |                         ----^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.77s
[INFO] running `"docker" "inspect" "14ef02a225240df79f4132f9670132d1c5a9808932bab636d26b760c3ed545f5"`
[INFO] running `"docker" "rm" "-f" "14ef02a225240df79f4132f9670132d1c5a9808932bab636d26b760c3ed545f5"`
[INFO] [stdout] 14ef02a225240df79f4132f9670132d1c5a9808932bab636d26b760c3ed545f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 306ac5d3a62cc20c4f36761e439bdf02126303a8d8f57c48f0ab2edb0ed638b4
[INFO] running `"docker" "start" "-a" "306ac5d3a62cc20c4f36761e439bdf02126303a8d8f57c48f0ab2edb0ed638b4"`
[INFO] [stderr]    Compiling cdasim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/market.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     let mut seller = sells.pop().unwrap();
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/market.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     let mut buyer = buys.pop().unwrap();
[INFO] [stderr]    |                         ----^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `"docker" "inspect" "306ac5d3a62cc20c4f36761e439bdf02126303a8d8f57c48f0ab2edb0ed638b4"`
[INFO] running `"docker" "rm" "-f" "306ac5d3a62cc20c4f36761e439bdf02126303a8d8f57c48f0ab2edb0ed638b4"`
[INFO] [stdout] 306ac5d3a62cc20c4f36761e439bdf02126303a8d8f57c48f0ab2edb0ed638b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikbrinkman/cdasim:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 38bbc37b4ba6aeafd8b54e1fe92e2574d080e169c4bf1dbde3d13e60c0cdbc97
[INFO] running `"docker" "start" "-a" "38bbc37b4ba6aeafd8b54e1fe92e2574d080e169c4bf1dbde3d13e60c0cdbc97"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cdasim-88085240d9f902ff
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test market::tests::test_simple_call ... ok
[INFO] [stdout] test agent::tests::test_shading_invariant ... ok
[INFO] [stdout] test agent::tests::test_inverse_enum ... ok
[INFO] [stdout] test tests::test_features ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "38bbc37b4ba6aeafd8b54e1fe92e2574d080e169c4bf1dbde3d13e60c0cdbc97"`
[INFO] running `"docker" "rm" "-f" "38bbc37b4ba6aeafd8b54e1fe92e2574d080e169c4bf1dbde3d13e60c0cdbc97"`
[INFO] [stdout] 38bbc37b4ba6aeafd8b54e1fe92e2574d080e169c4bf1dbde3d13e60c0cdbc97