[INFO] updating cached repository lsaether/iching
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lsaether/iching
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lsaether/iching" "work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lsaether/iching" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lsaether/iching"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lsaether/iching'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3523e21acddbffc00c356d676dd619a9384cf7b
[INFO] sha for GitHub repo lsaether/iching: e3523e21acddbffc00c356d676dd619a9384cf7b
[INFO] validating manifest of lsaether/iching on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lsaether/iching on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lsaether/iching
[INFO] finished frobbing lsaether/iching
[INFO] frobbed toml for lsaether/iching written to work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching/Cargo.toml
[INFO] started frobbing lsaether/iching
[INFO] finished frobbing lsaether/iching
[INFO] frobbed toml for lsaether/iching written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lsaether/iching/Cargo.toml
[INFO] crate lsaether/iching already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lsaether/iching against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] db93aab9537f62d3f972af820c075d6cf0b8aa2180b8ba3b5e33aea581bcbc39
[INFO] running `"docker" "start" "-a" "db93aab9537f62d3f972af820c075d6cf0b8aa2180b8ba3b5e33aea581bcbc39"`
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling iching v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `found`
[INFO] [stderr]    --> src/main.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let found = contents.find(&search_string).unwrap();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_found`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:205:53
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let mut res = env::vars().filter(|(key, value)| {
[INFO] [stderr]     |                                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pager`
[INFO] [stderr]    --> src/main.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let (_, pager) = res.nth(0).unwrap();
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_pager`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "db93aab9537f62d3f972af820c075d6cf0b8aa2180b8ba3b5e33aea581bcbc39"`
[INFO] running `"docker" "rm" "-f" "db93aab9537f62d3f972af820c075d6cf0b8aa2180b8ba3b5e33aea581bcbc39"`
[INFO] [stdout] db93aab9537f62d3f972af820c075d6cf0b8aa2180b8ba3b5e33aea581bcbc39
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7576dc58ceef12ddb08f60a65abd477ea04323dcf09a2e9a2d577236a57a7d52
[INFO] running `"docker" "start" "-a" "7576dc58ceef12ddb08f60a65abd477ea04323dcf09a2e9a2d577236a57a7d52"`
[INFO] [stderr]    Compiling iching v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `found`
[INFO] [stderr]    --> src/main.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let found = contents.find(&search_string).unwrap();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_found`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:205:53
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let mut res = env::vars().filter(|(key, value)| {
[INFO] [stderr]     |                                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pager`
[INFO] [stderr]    --> src/main.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let (_, pager) = res.nth(0).unwrap();
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_pager`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "7576dc58ceef12ddb08f60a65abd477ea04323dcf09a2e9a2d577236a57a7d52"`
[INFO] running `"docker" "rm" "-f" "7576dc58ceef12ddb08f60a65abd477ea04323dcf09a2e9a2d577236a57a7d52"`
[INFO] [stdout] 7576dc58ceef12ddb08f60a65abd477ea04323dcf09a2e9a2d577236a57a7d52
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lsaether/iching:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f5bcae82f4fc33e1c07678ed27e086377f9e4e2ce0b069de03857a3d575582c4
[INFO] running `"docker" "start" "-a" "f5bcae82f4fc33e1c07678ed27e086377f9e4e2ce0b069de03857a3d575582c4"`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iching-6222549f7b2b0142
[INFO] running `"docker" "inspect" "f5bcae82f4fc33e1c07678ed27e086377f9e4e2ce0b069de03857a3d575582c4"`
[INFO] running `"docker" "rm" "-f" "f5bcae82f4fc33e1c07678ed27e086377f9e4e2ce0b069de03857a3d575582c4"`
[INFO] [stdout] f5bcae82f4fc33e1c07678ed27e086377f9e4e2ce0b069de03857a3d575582c4