Dec 12 16:21:42.285 INFO checking convert-0.2.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 16:21:42.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 16:21:42.777 INFO [stdout] 89274e88f4a6582f998d9a4f666e9d503428137a888073eb77afb69fca6e51f8
Dec 12 16:21:42.784 INFO running `"docker" "start" "-a" "89274e88f4a6582f998d9a4f666e9d503428137a888073eb77afb69fca6e51f8"`
Dec 12 16:21:44.368 INFO [stderr] usermod: no changes
Dec 12 16:21:44.619 INFO [stderr]     Checking convert v0.2.0 (/source)
Dec 12 16:21:50.536 INFO [stderr] warning: unused import: `json::parse`
Dec 12 16:21:50.536 INFO [stderr]   --> src/main.rs:14:5
Dec 12 16:21:50.536 INFO [stderr]    |
Dec 12 16:21:50.536 INFO [stderr] 14 | use json::parse;
Dec 12 16:21:50.536 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 16:21:50.536 INFO [stderr]    |
Dec 12 16:21:50.536 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 16:21:50.536 INFO [stderr] 
Dec 12 16:21:50.595 INFO [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
Dec 12 16:21:50.595 INFO [stderr]   --> src/main.rs:40:26
Dec 12 16:21:50.595 INFO [stderr]    |
Dec 12 16:21:50.595 INFO [stderr] 40 |         for cause in err.causes().skip(1) {
Dec 12 16:21:50.595 INFO [stderr]    |                          ^^^^^^
Dec 12 16:21:50.595 INFO [stderr]    |
Dec 12 16:21:50.595 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 12 16:21:50.595 INFO [stderr] 
Dec 12 16:21:50.664 INFO [stderr] warning: unused variable: `val`
Dec 12 16:21:50.664 INFO [stderr]   --> src/main.rs:90:20
Dec 12 16:21:50.664 INFO [stderr]    |
Dec 12 16:21:50.664 INFO [stderr] 90 |         for (curr, val) in obj.iter() {
Dec 12 16:21:50.664 INFO [stderr]    |                    ^^^ help: consider using `_val` instead
Dec 12 16:21:50.664 INFO [stderr]    |
Dec 12 16:21:50.664 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 16:21:50.664 INFO [stderr] 
Dec 12 16:21:50.680 INFO [stderr] warning: unused attribute
Dec 12 16:21:50.680 INFO [stderr]  --> src/main.rs:9:1
Dec 12 16:21:50.680 INFO [stderr]   |
Dec 12 16:21:50.680 INFO [stderr] 9 | #[macro_use]
Dec 12 16:21:50.680 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 16:21:50.680 INFO [stderr]   |
Dec 12 16:21:50.681 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 12 16:21:50.681 INFO [stderr] 
Dec 12 16:21:50.681 INFO [stderr] warning: unused attribute
Dec 12 16:21:50.681 INFO [stderr]  --> src/main.rs:9:1
Dec 12 16:21:50.682 INFO [stderr]   |
Dec 12 16:21:50.682 INFO [stderr] 9 | #[macro_use]
Dec 12 16:21:50.682 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 16:21:50.682 INFO [stderr] 
Dec 12 16:21:50.790 INFO [stderr] warning: unused import: `json::parse`
Dec 12 16:21:50.790 INFO [stderr]   --> src/main.rs:14:5
Dec 12 16:21:50.790 INFO [stderr]    |
Dec 12 16:21:50.790 INFO [stderr] 14 | use json::parse;
Dec 12 16:21:50.790 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 16:21:50.790 INFO [stderr]    |
Dec 12 16:21:50.796 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 16:21:50.796 INFO [stderr] 
Dec 12 16:21:50.852 INFO [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
Dec 12 16:21:50.852 INFO [stderr]   --> src/main.rs:40:26
Dec 12 16:21:50.852 INFO [stderr]    |
Dec 12 16:21:50.852 INFO [stderr] 40 |         for cause in err.causes().skip(1) {
Dec 12 16:21:50.852 INFO [stderr]    |                          ^^^^^^
Dec 12 16:21:50.852 INFO [stderr]    |
Dec 12 16:21:50.852 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 12 16:21:50.852 INFO [stderr] 
Dec 12 16:21:50.912 INFO [stderr] warning: unused variable: `val`
Dec 12 16:21:50.912 INFO [stderr]   --> src/main.rs:90:20
Dec 12 16:21:50.912 INFO [stderr]    |
Dec 12 16:21:50.912 INFO [stderr] 90 |         for (curr, val) in obj.iter() {
Dec 12 16:21:50.912 INFO [stderr]    |                    ^^^ help: consider using `_val` instead
Dec 12 16:21:50.912 INFO [stderr]    |
Dec 12 16:21:50.912 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 16:21:50.912 INFO [stderr] 
Dec 12 16:21:50.949 INFO [stderr] warning: unused attribute
Dec 12 16:21:50.949 INFO [stderr]  --> src/main.rs:9:1
Dec 12 16:21:50.949 INFO [stderr]   |
Dec 12 16:21:50.949 INFO [stderr] 9 | #[macro_use]
Dec 12 16:21:50.949 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 16:21:50.949 INFO [stderr]   |
Dec 12 16:21:50.949 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 12 16:21:50.949 INFO [stderr] 
Dec 12 16:21:50.949 INFO [stderr] warning: unused attribute
Dec 12 16:21:50.949 INFO [stderr]  --> src/main.rs:9:1
Dec 12 16:21:50.949 INFO [stderr]   |
Dec 12 16:21:50.949 INFO [stderr] 9 | #[macro_use]
Dec 12 16:21:50.949 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 16:21:50.949 INFO [stderr] 
Dec 12 16:21:50.970 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.57s
Dec 12 16:21:50.984 INFO [stderr] su: No module specific data is present
Dec 12 16:21:51.366 INFO running `"docker" "inspect" "89274e88f4a6582f998d9a4f666e9d503428137a888073eb77afb69fca6e51f8"`
Dec 12 16:21:51.470 INFO running `"docker" "rm" "-f" "89274e88f4a6582f998d9a4f666e9d503428137a888073eb77afb69fca6e51f8"`
Dec 12 16:21:51.596 INFO [stdout] 89274e88f4a6582f998d9a4f666e9d503428137a888073eb77afb69fca6e51f8