[INFO] updating cached repository https://github.com/ultimate-research/prc-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bca63aa4d352c0388f50a5da8d317ff5fed209fb
[INFO] testing ultimate-research/prc-rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultimate-research%2Fprc-rs" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ultimate-research/prc-rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ultimate-research/prc-rs
[INFO] finished tweaking git repo https://github.com/ultimate-research/prc-rs
[INFO] tweaked toml for git repo https://github.com/ultimate-research/prc-rs written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 731c3150746f4b83e694e8e9b2d80b9264d3e5f099e3d57c61ab2bc47d5a6d65
[INFO] running `"docker" "start" "-a" "731c3150746f4b83e694e8e9b2d80b9264d3e5f099e3d57c61ab2bc47d5a6d65"`
[INFO] [stderr]    Compiling prc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::param`
[INFO] [stderr]  --> src/asm.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::param;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LittleEndian`, `WriteBytesExt`
[INFO] [stderr]  --> src/asm.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use byteorder::{LittleEndian, WriteBytesExt};
[INFO] [stderr]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Assembler`
[INFO] [stderr]  --> src/asm.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Assembler {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `"docker" "inspect" "731c3150746f4b83e694e8e9b2d80b9264d3e5f099e3d57c61ab2bc47d5a6d65"`
[INFO] running `"docker" "rm" "-f" "731c3150746f4b83e694e8e9b2d80b9264d3e5f099e3d57c61ab2bc47d5a6d65"`
[INFO] [stdout] 731c3150746f4b83e694e8e9b2d80b9264d3e5f099e3d57c61ab2bc47d5a6d65
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] c0daea326f1e11615a56bd7888e569583acd09af2521be0a297ce5c451c9e945
[INFO] running `"docker" "start" "-a" "c0daea326f1e11615a56bd7888e569583acd09af2521be0a297ce5c451c9e945"`
[INFO] [stderr]    Compiling prc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::param`
[INFO] [stderr]  --> src/asm.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::param;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LittleEndian`, `WriteBytesExt`
[INFO] [stderr]  --> src/asm.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use byteorder::{LittleEndian, WriteBytesExt};
[INFO] [stderr]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Assembler`
[INFO] [stderr]  --> src/asm.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Assembler {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "c0daea326f1e11615a56bd7888e569583acd09af2521be0a297ce5c451c9e945"`
[INFO] running `"docker" "rm" "-f" "c0daea326f1e11615a56bd7888e569583acd09af2521be0a297ce5c451c9e945"`
[INFO] [stdout] c0daea326f1e11615a56bd7888e569583acd09af2521be0a297ce5c451c9e945
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 2c255fa37b6036026147725dcf212a136f6132ce23c3fd2300b0d54f1c89e1a3
[INFO] running `"docker" "start" "-a" "2c255fa37b6036026147725dcf212a136f6132ce23c3fd2300b0d54f1c89e1a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prc-d2a7b5c6544069bd
[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]      Running /opt/rustwide/target/debug/deps/prc_tst-cb1751ab8650d99f
[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]    Doc-tests prc
[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" "2c255fa37b6036026147725dcf212a136f6132ce23c3fd2300b0d54f1c89e1a3"`
[INFO] running `"docker" "rm" "-f" "2c255fa37b6036026147725dcf212a136f6132ce23c3fd2300b0d54f1c89e1a3"`
[INFO] [stdout] 2c255fa37b6036026147725dcf212a136f6132ce23c3fd2300b0d54f1c89e1a3