Dec 05 08:22:49.575 INFO checking release-0.8.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:22:49.575 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 08:22:49.819 INFO [stdout] a47f9b0b930f960a93cfdc9911df9f6a49855c101e535ffe1f6e8ca703de1b7d
Dec 05 08:22:49.824 INFO running `"docker" "start" "-a" "a47f9b0b930f960a93cfdc9911df9f6a49855c101e535ffe1f6e8ca703de1b7d"`
Dec 05 08:22:50.706 INFO [stderr] usermod: no changes
Dec 05 08:22:50.887 INFO [stderr]     Checking release v0.8.1 (/source)
Dec 05 08:22:53.869 INFO [stderr] warning: unused import: `std::env::current_dir`
Dec 05 08:22:53.869 INFO [stderr]  --> src/tags.rs:4:5
Dec 05 08:22:53.869 INFO [stderr]   |
Dec 05 08:22:53.869 INFO [stderr] 4 | use std::env::current_dir;
Dec 05 08:22:53.869 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:53.869 INFO [stderr]   |
Dec 05 08:22:53.869 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 08:22:53.869 INFO [stderr] 
Dec 05 08:22:53.922 INFO [stderr] warning: unused import: `std::env::current_dir`
Dec 05 08:22:53.923 INFO [stderr]  --> src/tags.rs:4:5
Dec 05 08:22:53.923 INFO [stderr]   |
Dec 05 08:22:53.923 INFO [stderr] 4 | use std::env::current_dir;
Dec 05 08:22:53.923 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:53.923 INFO [stderr]   |
Dec 05 08:22:53.923 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 08:22:53.923 INFO [stderr] 
Dec 05 08:22:54.011 INFO [stderr] warning: unused variable: `E`
Dec 05 08:22:54.011 INFO [stderr]   --> src/main.rs:27:17
Dec 05 08:22:54.011 INFO [stderr]    |
Dec 05 08:22:54.011 INFO [stderr] 27 |             Err(E) => {
Dec 05 08:22:54.011 INFO [stderr]    |                 ^ help: consider using `_E` instead
Dec 05 08:22:54.012 INFO [stderr]    |
Dec 05 08:22:54.012 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 08:22:54.012 INFO [stderr] 
Dec 05 08:22:54.042 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.042 INFO [stderr]   --> src/tags.rs:48:13
Dec 05 08:22:54.042 INFO [stderr]    |
Dec 05 08:22:54.042 INFO [stderr] 48 |         let mut versions = self.get_tags().versions();
Dec 05 08:22:54.042 INFO [stderr]    |             ----^^^^^^^^
Dec 05 08:22:54.043 INFO [stderr]    |             |
Dec 05 08:22:54.043 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.043 INFO [stderr]    |
Dec 05 08:22:54.043 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 08:22:54.043 INFO [stderr] 
Dec 05 08:22:54.046 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.046 INFO [stderr]   --> src/tags.rs:84:13
Dec 05 08:22:54.046 INFO [stderr]    |
Dec 05 08:22:54.046 INFO [stderr] 84 |         let mut val;
Dec 05 08:22:54.046 INFO [stderr]    |             ----^^^
Dec 05 08:22:54.046 INFO [stderr]    |             |
Dec 05 08:22:54.046 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.047 INFO [stderr] 
Dec 05 08:22:54.050 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.050 INFO [stderr]   --> src/tags.rs:97:13
Dec 05 08:22:54.050 INFO [stderr]    |
Dec 05 08:22:54.050 INFO [stderr] 97 |         let mut obj;
Dec 05 08:22:54.050 INFO [stderr]    |             ----^^^
Dec 05 08:22:54.051 INFO [stderr]    |             |
Dec 05 08:22:54.051 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.051 INFO [stderr] 
Dec 05 08:22:54.052 INFO [stderr] warning: method is never used: `iter`
Dec 05 08:22:54.052 INFO [stderr]    --> src/tags.rs:105:5
Dec 05 08:22:54.052 INFO [stderr]     |
Dec 05 08:22:54.052 INFO [stderr] 105 |     pub fn iter(&self) -> Iter<Version>{
Dec 05 08:22:54.053 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:54.053 INFO [stderr]     |
Dec 05 08:22:54.053 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 05 08:22:54.053 INFO [stderr] 
Dec 05 08:22:54.055 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 05 08:22:54.055 INFO [stderr]   --> src/tags.rs:79:17
Dec 05 08:22:54.055 INFO [stderr]    |
Dec 05 08:22:54.055 INFO [stderr] 79 |             Err(E) => Err(E)
Dec 05 08:22:54.055 INFO [stderr]    |                 ^
Dec 05 08:22:54.055 INFO [stderr]    |
Dec 05 08:22:54.056 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 05 08:22:54.056 INFO [stderr] 
Dec 05 08:22:54.056 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 08:22:54.057 INFO [stderr]   --> src/main.rs:25:17
Dec 05 08:22:54.057 INFO [stderr]    |
Dec 05 08:22:54.057 INFO [stderr] 25 |                 release.make_release(vtype);
Dec 05 08:22:54.057 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:54.057 INFO [stderr]    |
Dec 05 08:22:54.057 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 08:22:54.058 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 08:22:54.058 INFO [stderr] 
Dec 05 08:22:54.058 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 05 08:22:54.058 INFO [stderr]   --> src/main.rs:27:17
Dec 05 08:22:54.058 INFO [stderr]    |
Dec 05 08:22:54.059 INFO [stderr] 27 |             Err(E) => {
Dec 05 08:22:54.059 INFO [stderr]    |                 ^
Dec 05 08:22:54.059 INFO [stderr] 
Dec 05 08:22:54.075 INFO [stderr] warning: unused variable: `E`
Dec 05 08:22:54.075 INFO [stderr]   --> src/main.rs:27:17
Dec 05 08:22:54.075 INFO [stderr]    |
Dec 05 08:22:54.075 INFO [stderr] 27 |             Err(E) => {
Dec 05 08:22:54.075 INFO [stderr]    |                 ^ help: consider using `_E` instead
Dec 05 08:22:54.076 INFO [stderr]    |
Dec 05 08:22:54.076 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 08:22:54.076 INFO [stderr] 
Dec 05 08:22:54.098 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.098 INFO [stderr]   --> src/tags.rs:48:13
Dec 05 08:22:54.098 INFO [stderr]    |
Dec 05 08:22:54.098 INFO [stderr] 48 |         let mut versions = self.get_tags().versions();
Dec 05 08:22:54.099 INFO [stderr]    |             ----^^^^^^^^
Dec 05 08:22:54.099 INFO [stderr]    |             |
Dec 05 08:22:54.099 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.099 INFO [stderr]    |
Dec 05 08:22:54.099 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 08:22:54.099 INFO [stderr] 
Dec 05 08:22:54.100 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.100 INFO [stderr]   --> src/tags.rs:84:13
Dec 05 08:22:54.100 INFO [stderr]    |
Dec 05 08:22:54.100 INFO [stderr] 84 |         let mut val;
Dec 05 08:22:54.100 INFO [stderr]    |             ----^^^
Dec 05 08:22:54.100 INFO [stderr]    |             |
Dec 05 08:22:54.100 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.100 INFO [stderr] 
Dec 05 08:22:54.103 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:22:54.103 INFO [stderr]   --> src/tags.rs:97:13
Dec 05 08:22:54.103 INFO [stderr]    |
Dec 05 08:22:54.103 INFO [stderr] 97 |         let mut obj;
Dec 05 08:22:54.103 INFO [stderr]    |             ----^^^
Dec 05 08:22:54.103 INFO [stderr]    |             |
Dec 05 08:22:54.103 INFO [stderr]    |             help: remove this `mut`
Dec 05 08:22:54.103 INFO [stderr] 
Dec 05 08:22:54.107 INFO [stderr] warning: method is never used: `iter`
Dec 05 08:22:54.107 INFO [stderr]    --> src/tags.rs:105:5
Dec 05 08:22:54.107 INFO [stderr]     |
Dec 05 08:22:54.107 INFO [stderr] 105 |     pub fn iter(&self) -> Iter<Version>{
Dec 05 08:22:54.107 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:54.107 INFO [stderr]     |
Dec 05 08:22:54.107 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 05 08:22:54.107 INFO [stderr] 
Dec 05 08:22:54.107 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 05 08:22:54.107 INFO [stderr]   --> src/tags.rs:79:17
Dec 05 08:22:54.107 INFO [stderr]    |
Dec 05 08:22:54.107 INFO [stderr] 79 |             Err(E) => Err(E)
Dec 05 08:22:54.107 INFO [stderr]    |                 ^
Dec 05 08:22:54.107 INFO [stderr]    |
Dec 05 08:22:54.107 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 05 08:22:54.107 INFO [stderr] 
Dec 05 08:22:54.107 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 08:22:54.107 INFO [stderr]   --> src/main.rs:25:17
Dec 05 08:22:54.107 INFO [stderr]    |
Dec 05 08:22:54.107 INFO [stderr] 25 |                 release.make_release(vtype);
Dec 05 08:22:54.107 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:22:54.107 INFO [stderr]    |
Dec 05 08:22:54.107 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 08:22:54.107 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 08:22:54.107 INFO [stderr] 
Dec 05 08:22:54.107 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 05 08:22:54.107 INFO [stderr]   --> src/main.rs:27:17
Dec 05 08:22:54.107 INFO [stderr]    |
Dec 05 08:22:54.107 INFO [stderr] 27 |             Err(E) => {
Dec 05 08:22:54.107 INFO [stderr]    |                 ^
Dec 05 08:22:54.107 INFO [stderr] 
Dec 05 08:22:54.151 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
Dec 05 08:22:54.157 INFO [stderr] su: No module specific data is present
Dec 05 08:22:55.244 INFO running `"docker" "inspect" "a47f9b0b930f960a93cfdc9911df9f6a49855c101e535ffe1f6e8ca703de1b7d"`
Dec 05 08:22:55.537 INFO running `"docker" "rm" "-f" "a47f9b0b930f960a93cfdc9911df9f6a49855c101e535ffe1f6e8ca703de1b7d"`
Dec 05 08:22:55.839 INFO [stdout] a47f9b0b930f960a93cfdc9911df9f6a49855c101e535ffe1f6e8ca703de1b7d