[INFO] crate common_failures 0.1.1 is already in cache
[INFO] extracting crate common_failures 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/common_failures/0.1.1
[INFO] extracting crate common_failures 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/common_failures/0.1.1
[INFO] validating manifest of common_failures-0.1.1 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 common_failures-0.1.1 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 common_failures-0.1.1
[INFO] finished frobbing common_failures-0.1.1
[INFO] frobbed toml for common_failures-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/common_failures/0.1.1/Cargo.toml
[INFO] started frobbing common_failures-0.1.1
[INFO] finished frobbing common_failures-0.1.1
[INFO] frobbed toml for common_failures-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/common_failures/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing common_failures-0.1.1 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/common_failures/0.1.1:/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] 034b328ad0a21f745271ec6b5d63dab7aa973b87fae236bd1b2e6fd901197a75
[INFO] running `"docker" "start" "-a" "034b328ad0a21f745271ec6b5d63dab7aa973b87fae236bd1b2e6fd901197a75"`
[INFO] [stderr]    Compiling common_failures v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:93:1
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]   --> src/display.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for cause in self.err.causes() {
[INFO] [stderr]    |                               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "034b328ad0a21f745271ec6b5d63dab7aa973b87fae236bd1b2e6fd901197a75"`
[INFO] running `"docker" "rm" "-f" "034b328ad0a21f745271ec6b5d63dab7aa973b87fae236bd1b2e6fd901197a75"`
[INFO] [stdout] 034b328ad0a21f745271ec6b5d63dab7aa973b87fae236bd1b2e6fd901197a75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/common_failures/0.1.1:/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] e4103f74ba3d84d85bd29d41c8a3eecb2dbf1be9ad70a4210bca89754d6bbf28
[INFO] running `"docker" "start" "-a" "e4103f74ba3d84d85bd29d41c8a3eecb2dbf1be9ad70a4210bca89754d6bbf28"`
[INFO] [stderr]    Compiling common_failures v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:93:1
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]   --> src/display.rs:18:31
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for cause in self.err.causes() {
[INFO] [stderr]    |                               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "e4103f74ba3d84d85bd29d41c8a3eecb2dbf1be9ad70a4210bca89754d6bbf28"`
[INFO] running `"docker" "rm" "-f" "e4103f74ba3d84d85bd29d41c8a3eecb2dbf1be9ad70a4210bca89754d6bbf28"`
[INFO] [stdout] e4103f74ba3d84d85bd29d41c8a3eecb2dbf1be9ad70a4210bca89754d6bbf28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/common_failures/0.1.1:/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] 5ed201067b39cb2e3ac1cd6949fd51ec634c84e4adf865314b4d40b189c24b8e
[INFO] running `"docker" "start" "-a" "5ed201067b39cb2e3ac1cd6949fd51ec634c84e4adf865314b4d40b189c24b8e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/common_failures-664ad3eec82bac9b
[INFO] [stderr]    Doc-tests common_failures
[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] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/io.rs - io::IoContextErrorExt::io_context (line 209) ... ok
[INFO] [stdout] test src/io.rs - io::IoContextExt::io_context (line 119) ... ok
[INFO] [stdout] test src/io.rs - io::IoContextErrorExt::io_read_context (line 236) ... ok
[INFO] [stdout] test src/io.rs - io::IoContextExt::io_read_context (line 146) ... ok
[INFO] [stdout] test src/lib.rs -  (line 46) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs -  (line 29) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5ed201067b39cb2e3ac1cd6949fd51ec634c84e4adf865314b4d40b189c24b8e"`
[INFO] running `"docker" "rm" "-f" "5ed201067b39cb2e3ac1cd6949fd51ec634c84e4adf865314b4d40b189c24b8e"`
[INFO] [stdout] 5ed201067b39cb2e3ac1cd6949fd51ec634c84e4adf865314b4d40b189c24b8e