[INFO] crate libimagtodo 0.9.3 is already in cache
[INFO] extracting crate libimagtodo 0.9.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/libimagtodo/0.9.3
[INFO] extracting crate libimagtodo 0.9.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libimagtodo/0.9.3
[INFO] validating manifest of libimagtodo-0.9.3 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 libimagtodo-0.9.3 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 libimagtodo-0.9.3
[INFO] finished frobbing libimagtodo-0.9.3
[INFO] frobbed toml for libimagtodo-0.9.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/libimagtodo/0.9.3/Cargo.toml
[INFO] started frobbing libimagtodo-0.9.3
[INFO] finished frobbing libimagtodo-0.9.3
[INFO] frobbed toml for libimagtodo-0.9.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libimagtodo/0.9.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 libimagtodo-0.9.3 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/libimagtodo/0.9.3:/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] 1969f636cfc2fa4fdc0f789f492cba9b4324dad16eb6c06f414a393cb8c9cb16
[INFO] running `"docker" "start" "-a" "1969f636cfc2fa4fdc0f789f492cba9b4324dad16eb6c06f414a393cb8c9cb16"`
[INFO] [stderr]    Compiling derive_builder v0.6.0
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling toml-query v0.8.0
[INFO] [stderr]    Compiling libimagerror v0.9.3
[INFO] [stderr]    Compiling libimagutil v0.9.3
[INFO] [stderr]    Compiling libimagstore v0.9.3
[INFO] [stderr]    Compiling darling_core v0.6.3
[INFO] [stderr]    Compiling darling_macro v0.6.3
[INFO] [stderr]    Compiling darling v0.6.3
[INFO] [stderr]    Compiling derive_builder_core v0.3.0
[INFO] [stderr]    Compiling task-hookrs v0.6.0
[INFO] [stderr]    Compiling libimagtodo v0.9.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/taskstore.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 let val = serde_to_string(&ttask).context(err_msg("Import error"))?;
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.61s
[INFO] running `"docker" "inspect" "1969f636cfc2fa4fdc0f789f492cba9b4324dad16eb6c06f414a393cb8c9cb16"`
[INFO] running `"docker" "rm" "-f" "1969f636cfc2fa4fdc0f789f492cba9b4324dad16eb6c06f414a393cb8c9cb16"`
[INFO] [stdout] 1969f636cfc2fa4fdc0f789f492cba9b4324dad16eb6c06f414a393cb8c9cb16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/libimagtodo/0.9.3:/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] 56dfa8f2fd929e97a1df459ead5ddf71f6eb6c839f43637b8c209bab9033efd7
[INFO] running `"docker" "start" "-a" "56dfa8f2fd929e97a1df459ead5ddf71f6eb6c839f43637b8c209bab9033efd7"`
[INFO] [stderr]    Compiling libimagtodo v0.9.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/taskstore.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 let val = serde_to_string(&ttask).context(err_msg("Import error"))?;
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "56dfa8f2fd929e97a1df459ead5ddf71f6eb6c839f43637b8c209bab9033efd7"`
[INFO] running `"docker" "rm" "-f" "56dfa8f2fd929e97a1df459ead5ddf71f6eb6c839f43637b8c209bab9033efd7"`
[INFO] [stdout] 56dfa8f2fd929e97a1df459ead5ddf71f6eb6c839f43637b8c209bab9033efd7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/libimagtodo/0.9.3:/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] a407932f36b9a8d9c8717f9093f82477425ff3ea83998370cfe7ef0d7cd7e2bc
[INFO] running `"docker" "start" "-a" "a407932f36b9a8d9c8717f9093f82477425ff3ea83998370cfe7ef0d7cd7e2bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/libimagtodo-b4e910cf823a53a9
[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 libimagtodo
[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" "a407932f36b9a8d9c8717f9093f82477425ff3ea83998370cfe7ef0d7cd7e2bc"`
[INFO] running `"docker" "rm" "-f" "a407932f36b9a8d9c8717f9093f82477425ff3ea83998370cfe7ef0d7cd7e2bc"`
[INFO] [stdout] a407932f36b9a8d9c8717f9093f82477425ff3ea83998370cfe7ef0d7cd7e2bc