Dec 05 04:58:37.367 INFO testing tercen/rustson against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 04:58:37.368 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:58:37.890 INFO [stdout] f0833b7672fe54a6c72f35f555016f4e5a0fad729ab051726cf5f1f4c3b69a97
Dec 05 04:58:37.892 INFO running `"docker" "start" "-a" "f0833b7672fe54a6c72f35f555016f4e5a0fad729ab051726cf5f1f4c3b69a97"`
Dec 05 04:58:40.088 INFO [stderr] usermod: no changes
Dec 05 04:58:40.176 INFO [stderr]    Compiling rustson v0.1.0 (/source)
Dec 05 04:58:40.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:58:40.732 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 04:58:40.732 INFO [stderr]     |
Dec 05 04:58:40.732 INFO [stderr] 133 |                 add_object(v, buf);
Dec 05 04:58:40.732 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:40.732 INFO [stderr]     |
Dec 05 04:58:40.732 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 04:58:40.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:58:40.732 INFO [stderr] 
Dec 05 04:58:42.384 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
Dec 05 04:58:42.384 INFO [stderr] su: No module specific data is present
Dec 05 04:58:43.620 INFO running `"docker" "inspect" "f0833b7672fe54a6c72f35f555016f4e5a0fad729ab051726cf5f1f4c3b69a97"`
Dec 05 04:58:43.890 INFO running `"docker" "rm" "-f" "f0833b7672fe54a6c72f35f555016f4e5a0fad729ab051726cf5f1f4c3b69a97"`
Dec 05 04:58:44.272 INFO [stdout] f0833b7672fe54a6c72f35f555016f4e5a0fad729ab051726cf5f1f4c3b69a97
Dec 05 04:58:44.274 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:58:44.732 INFO [stdout] 0730ccd4e6c1d90f459225649cadb6c92c997e5304b65988669fa6f2a724857d
Dec 05 04:58:44.734 INFO running `"docker" "start" "-a" "0730ccd4e6c1d90f459225649cadb6c92c997e5304b65988669fa6f2a724857d"`
Dec 05 04:58:46.482 INFO [stderr] usermod: no changes
Dec 05 04:58:46.536 INFO [stderr]    Compiling rustson v0.1.0 (/source)
Dec 05 04:58:46.848 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 04:58:46.849 INFO [stderr]    --> src/lib.rs:456:9
Dec 05 04:58:46.849 INFO [stderr]     |
Dec 05 04:58:46.849 INFO [stderr] 456 |     use std::fs::File;
Dec 05 04:58:46.850 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 05 04:58:46.850 INFO [stderr]     |
Dec 05 04:58:46.850 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 04:58:46.850 INFO [stderr] 
Dec 05 04:58:46.851 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 04:58:46.851 INFO [stderr]    --> src/lib.rs:457:9
Dec 05 04:58:46.851 INFO [stderr]     |
Dec 05 04:58:46.852 INFO [stderr] 457 |     use std::io::prelude::*;
Dec 05 04:58:46.852 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:46.852 INFO [stderr] 
Dec 05 04:58:47.086 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 04:58:47.086 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 04:58:47.087 INFO [stderr]     |
Dec 05 04:58:47.087 INFO [stderr] 133 |                 add_object(v, buf);
Dec 05 04:58:47.087 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 05 04:58:47.088 INFO [stderr]     |
Dec 05 04:58:47.088 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 04:58:47.088 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 04:58:47.089 INFO [stderr] 
Dec 05 04:58:48.943 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
Dec 05 04:58:48.946 INFO [stderr] su: No module specific data is present
Dec 05 04:58:49.990 INFO running `"docker" "inspect" "0730ccd4e6c1d90f459225649cadb6c92c997e5304b65988669fa6f2a724857d"`
Dec 05 04:58:50.330 INFO running `"docker" "rm" "-f" "0730ccd4e6c1d90f459225649cadb6c92c997e5304b65988669fa6f2a724857d"`
Dec 05 04:58:50.708 INFO [stdout] 0730ccd4e6c1d90f459225649cadb6c92c997e5304b65988669fa6f2a724857d
Dec 05 04:58:50.710 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:58:51.238 INFO [stdout] 64aa8a90178d9f88a35743eff0bad0c50ec8260482dff719551dd62cf5f3941b
Dec 05 04:58:51.240 INFO running `"docker" "start" "-a" "64aa8a90178d9f88a35743eff0bad0c50ec8260482dff719551dd62cf5f3941b"`
Dec 05 04:58:53.971 INFO [stderr] usermod: no changes
Dec 05 04:58:54.040 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 05 04:58:54.041 INFO [stderr]      Running /target/debug/deps/rustson-979137c12af5418a
Dec 05 04:58:54.084 INFO [stdout] 
Dec 05 04:58:54.084 INFO [stdout] running 4 tests
Dec 05 04:58:54.084 INFO [stdout] test tests::empty_lst ... ok
Dec 05 04:58:54.092 INFO [stdout] test tests::null ... ok
Dec 05 04:58:54.092 INFO [stdout] test tests::lst ... ok
Dec 05 04:58:54.092 INFO [stdout] test tests::map ... ok
Dec 05 04:58:54.092 INFO [stdout] 
Dec 05 04:58:54.092 INFO [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 04:58:54.092 INFO [stdout] 
Dec 05 04:58:54.100 INFO [stderr]    Doc-tests rustson
Dec 05 04:58:54.420 INFO [stdout] 
Dec 05 04:58:54.420 INFO [stdout] running 0 tests
Dec 05 04:58:54.420 INFO [stdout] 
Dec 05 04:58:54.420 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 04:58:54.420 INFO [stdout] 
Dec 05 04:58:54.426 INFO [stderr] su: No module specific data is present
Dec 05 04:58:55.882 INFO running `"docker" "inspect" "64aa8a90178d9f88a35743eff0bad0c50ec8260482dff719551dd62cf5f3941b"`
Dec 05 04:58:56.196 INFO running `"docker" "rm" "-f" "64aa8a90178d9f88a35743eff0bad0c50ec8260482dff719551dd62cf5f3941b"`
Dec 05 04:58:56.638 INFO [stdout] 64aa8a90178d9f88a35743eff0bad0c50ec8260482dff719551dd62cf5f3941b