Dec 05 04:58:56.717 INFO testing tercen/rustson against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 04:58:56.717 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 05 04:58:57.204 INFO [stdout] 5e7dc42fbabb43ce7e7c907bf63ad363805c1158554c17ff4fe727afa3da26cc
Dec 05 04:58:57.212 INFO running `"docker" "start" "-a" "5e7dc42fbabb43ce7e7c907bf63ad363805c1158554c17ff4fe727afa3da26cc"`
Dec 05 04:58:58.725 INFO [stderr] usermod: no changes
Dec 05 04:58:58.817 INFO [stderr]    Compiling rustson v0.1.0 (/source)
Dec 05 04:58:59.485 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:58:59.485 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 04:58:59.485 INFO [stderr]     |
Dec 05 04:58:59.485 INFO [stderr] 133 |                 add_object(v, buf);
Dec 05 04:58:59.485 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:59.485 INFO [stderr]     |
Dec 05 04:58:59.485 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 04:58:59.485 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:58:59.485 INFO [stderr] 
Dec 05 04:59:00.829 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 05 04:59:00.832 INFO [stderr] su: No module specific data is present
Dec 05 04:59:01.706 INFO running `"docker" "inspect" "5e7dc42fbabb43ce7e7c907bf63ad363805c1158554c17ff4fe727afa3da26cc"`
Dec 05 04:59:01.882 INFO running `"docker" "rm" "-f" "5e7dc42fbabb43ce7e7c907bf63ad363805c1158554c17ff4fe727afa3da26cc"`
Dec 05 04:59:02.208 INFO [stdout] 5e7dc42fbabb43ce7e7c907bf63ad363805c1158554c17ff4fe727afa3da26cc
Dec 05 04:59:02.214 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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 05 04:59:02.733 INFO [stdout] 6dd47253847e050a8eee6060b1dbcb0f8731b4b8216ce49647e87230ee03725b
Dec 05 04:59:02.737 INFO running `"docker" "start" "-a" "6dd47253847e050a8eee6060b1dbcb0f8731b4b8216ce49647e87230ee03725b"`
Dec 05 04:59:03.684 INFO [stderr] usermod: no changes
Dec 05 04:59:03.750 INFO [stderr]    Compiling rustson v0.1.0 (/source)
Dec 05 04:59:03.982 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 04:59:03.982 INFO [stderr]    --> src/lib.rs:456:9
Dec 05 04:59:03.982 INFO [stderr]     |
Dec 05 04:59:03.982 INFO [stderr] 456 |     use std::fs::File;
Dec 05 04:59:03.982 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 05 04:59:03.982 INFO [stderr]     |
Dec 05 04:59:03.982 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 04:59:03.982 INFO [stderr] 
Dec 05 04:59:03.982 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 04:59:03.982 INFO [stderr]    --> src/lib.rs:457:9
Dec 05 04:59:03.982 INFO [stderr]     |
Dec 05 04:59:03.982 INFO [stderr] 457 |     use std::io::prelude::*;
Dec 05 04:59:03.982 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Dec 05 04:59:03.982 INFO [stderr] 
Dec 05 04:59:04.220 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:59:04.220 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 04:59:04.220 INFO [stderr]     |
Dec 05 04:59:04.220 INFO [stderr] 133 |                 add_object(v, buf);
Dec 05 04:59:04.220 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 05 04:59:04.220 INFO [stderr]     |
Dec 05 04:59:04.220 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 04:59:04.220 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:59:04.220 INFO [stderr] 
Dec 05 04:59:05.991 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
Dec 05 04:59:05.994 INFO [stderr] su: No module specific data is present
Dec 05 04:59:06.646 INFO running `"docker" "inspect" "6dd47253847e050a8eee6060b1dbcb0f8731b4b8216ce49647e87230ee03725b"`
Dec 05 04:59:07.164 INFO running `"docker" "rm" "-f" "6dd47253847e050a8eee6060b1dbcb0f8731b4b8216ce49647e87230ee03725b"`
Dec 05 04:59:07.364 INFO [stdout] 6dd47253847e050a8eee6060b1dbcb0f8731b4b8216ce49647e87230ee03725b
Dec 05 04:59:07.367 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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 05 04:59:07.556 INFO [stdout] 7ff18a5cf4cf103243eb25a1cc45f2099ad6a0bf8f7586154a1b060896cc8565
Dec 05 04:59:07.557 INFO running `"docker" "start" "-a" "7ff18a5cf4cf103243eb25a1cc45f2099ad6a0bf8f7586154a1b060896cc8565"`
Dec 05 04:59:07.910 INFO [stderr] usermod: no changes
Dec 05 04:59:07.951 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 05 04:59:07.961 INFO [stderr]      Running /target/debug/deps/rustson-1fde4316d2549868
Dec 05 04:59:07.963 INFO [stdout] 
Dec 05 04:59:07.963 INFO [stdout] running 4 tests
Dec 05 04:59:07.963 INFO [stdout] test tests::empty_lst ... ok
Dec 05 04:59:07.963 INFO [stdout] test tests::lst ... ok
Dec 05 04:59:07.964 INFO [stdout] test tests::map ... ok
Dec 05 04:59:07.965 INFO [stdout] test tests::null ... ok
Dec 05 04:59:07.965 INFO [stderr]    Doc-tests rustson
Dec 05 04:59:07.965 INFO [stdout] 
Dec 05 04:59:07.965 INFO [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 04:59:07.965 INFO [stdout] 
Dec 05 04:59:08.185 INFO [stdout] 
Dec 05 04:59:08.185 INFO [stdout] running 0 tests
Dec 05 04:59:08.185 INFO [stdout] 
Dec 05 04:59:08.185 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 04:59:08.185 INFO [stdout] 
Dec 05 04:59:08.192 INFO [stderr] su: No module specific data is present
Dec 05 04:59:08.514 INFO running `"docker" "inspect" "7ff18a5cf4cf103243eb25a1cc45f2099ad6a0bf8f7586154a1b060896cc8565"`
Dec 05 04:59:08.669 INFO running `"docker" "rm" "-f" "7ff18a5cf4cf103243eb25a1cc45f2099ad6a0bf8f7586154a1b060896cc8565"`
Dec 05 04:59:08.904 INFO [stdout] 7ff18a5cf4cf103243eb25a1cc45f2099ad6a0bf8f7586154a1b060896cc8565