[INFO] updating cached repository pczora/olderon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pczora/olderon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pczora/olderon" "work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pczora/olderon" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pczora/olderon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pczora/olderon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e47201b4296998fe8b3b79880e6cfc3c8ed8944
[INFO] sha for GitHub repo pczora/olderon: 7e47201b4296998fe8b3b79880e6cfc3c8ed8944
[INFO] validating manifest of pczora/olderon on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pczora/olderon on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pczora/olderon
[INFO] finished frobbing pczora/olderon
[INFO] frobbed toml for pczora/olderon written to work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon/Cargo.toml
[INFO] started frobbing pczora/olderon
[INFO] finished frobbing pczora/olderon
[INFO] frobbed toml for pczora/olderon written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pczora/olderon/Cargo.toml
[INFO] crate pczora/olderon already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pczora/olderon against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 3ac307659c34d02eab6ecbaa7015297b9f8883b46c78b7f7b416d4c3ec0d39cb
[INFO] running `"docker" "start" "-a" "3ac307659c34d02eab6ecbaa7015297b9f8883b46c78b7f7b416d4c3ec0d39cb"`
[INFO] [stderr]    Compiling olderon v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::num`
[INFO] [stderr]  --> src/fileparser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::num;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/fileparser.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let s = &mut String::new();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hlt_regex`
[INFO] [stderr]   --> src/fileparser.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let hlt_regex = Regex::new(r"^HLT").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_hlt_regex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fileparser.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut file = match File::open(path) {
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fileparser.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut reader = BufReader::new(&file);
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "3ac307659c34d02eab6ecbaa7015297b9f8883b46c78b7f7b416d4c3ec0d39cb"`
[INFO] running `"docker" "rm" "-f" "3ac307659c34d02eab6ecbaa7015297b9f8883b46c78b7f7b416d4c3ec0d39cb"`
[INFO] [stdout] 3ac307659c34d02eab6ecbaa7015297b9f8883b46c78b7f7b416d4c3ec0d39cb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] cd57f7b584b2b6659998c5075c60140ac442b44db2feecfc019449f5250d7536
[INFO] running `"docker" "start" "-a" "cd57f7b584b2b6659998c5075c60140ac442b44db2feecfc019449f5250d7536"`
[INFO] [stderr]    Compiling olderon v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::num`
[INFO] [stderr]  --> src/fileparser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::num;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/fileparser.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let s = &mut String::new();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hlt_regex`
[INFO] [stderr]   --> src/fileparser.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let hlt_regex = Regex::new(r"^HLT").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_hlt_regex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fileparser.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut file = match File::open(path) {
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fileparser.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut reader = BufReader::new(&file);
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "cd57f7b584b2b6659998c5075c60140ac442b44db2feecfc019449f5250d7536"`
[INFO] running `"docker" "rm" "-f" "cd57f7b584b2b6659998c5075c60140ac442b44db2feecfc019449f5250d7536"`
[INFO] [stdout] cd57f7b584b2b6659998c5075c60140ac442b44db2feecfc019449f5250d7536
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pczora/olderon:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b4377c33c66a19e2825b6d69f84f3e2bd94a1e71c03b8163cf55c23f968b8703
[INFO] running `"docker" "start" "-a" "b4377c33c66a19e2825b6d69f84f3e2bd94a1e71c03b8163cf55c23f968b8703"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/olderon-292026dca773db9e
[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" "b4377c33c66a19e2825b6d69f84f3e2bd94a1e71c03b8163cf55c23f968b8703"`
[INFO] running `"docker" "rm" "-f" "b4377c33c66a19e2825b6d69f84f3e2bd94a1e71c03b8163cf55c23f968b8703"`
[INFO] [stdout] b4377c33c66a19e2825b6d69f84f3e2bd94a1e71c03b8163cf55c23f968b8703