[INFO] crate r2pipe 0.4.0 is already in cache
[INFO] extracting crate r2pipe 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/r2pipe/0.4.0
[INFO] extracting crate r2pipe 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r2pipe/0.4.0
[INFO] validating manifest of r2pipe-0.4.0 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 r2pipe-0.4.0 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 r2pipe-0.4.0
[INFO] finished frobbing r2pipe-0.4.0
[INFO] frobbed toml for r2pipe-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/r2pipe/0.4.0/Cargo.toml
[INFO] started frobbing r2pipe-0.4.0
[INFO] finished frobbing r2pipe-0.4.0
[INFO] frobbed toml for r2pipe-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r2pipe/0.4.0/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 r2pipe-0.4.0 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/r2pipe/0.4.0:/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] 5ea159acb406af8bcaacf63f07901fe9853e6e0eed2f6558bb2fa054f24e6b12
[INFO] running `"docker" "start" "-a" "5ea159acb406af8bcaacf63f07901fe9853e6e0eed2f6558bb2fa054f24e6b12"`
[INFO] [stderr]    Compiling r2pipe v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "5ea159acb406af8bcaacf63f07901fe9853e6e0eed2f6558bb2fa054f24e6b12"`
[INFO] running `"docker" "rm" "-f" "5ea159acb406af8bcaacf63f07901fe9853e6e0eed2f6558bb2fa054f24e6b12"`
[INFO] [stdout] 5ea159acb406af8bcaacf63f07901fe9853e6e0eed2f6558bb2fa054f24e6b12
[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/r2pipe/0.4.0:/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] 4854fd009b5e45684493f4d9fc91bacd0d45367a3cccf985af62f1a697bc351b
[INFO] running `"docker" "start" "-a" "4854fd009b5e45684493f4d9fc91bacd0d45367a3cccf985af62f1a697bc351b"`
[INFO] [stderr]    Compiling r2pipe v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/r2_example.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate r2pipe;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/async.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     cbs: Vec<Arc<Fn(String)>>,
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use `dyn`: `dyn Fn(String)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/async.rs:33:54
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn cmd(&mut self, str: &'static str, cb: Arc<Fn(String)>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^ help: use `dyn`: `dyn Fn(String)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/quit.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate r2pipe;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> examples/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `"docker" "inspect" "4854fd009b5e45684493f4d9fc91bacd0d45367a3cccf985af62f1a697bc351b"`
[INFO] running `"docker" "rm" "-f" "4854fd009b5e45684493f4d9fc91bacd0d45367a3cccf985af62f1a697bc351b"`
[INFO] [stdout] 4854fd009b5e45684493f4d9fc91bacd0d45367a3cccf985af62f1a697bc351b
[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/r2pipe/0.4.0:/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] eb2c45491ff48233c959c55fac5cb44e4a5d51ad838c9d2b279b401d10c1d995
[INFO] running `"docker" "start" "-a" "eb2c45491ff48233c959c55fac5cb44e4a5d51ad838c9d2b279b401d10c1d995"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/r2pipe-7719794ece99b3f8
[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 r2pipe
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "eb2c45491ff48233c959c55fac5cb44e4a5d51ad838c9d2b279b401d10c1d995"`
[INFO] running `"docker" "rm" "-f" "eb2c45491ff48233c959c55fac5cb44e4a5d51ad838c9d2b279b401d10c1d995"`
[INFO] [stdout] eb2c45491ff48233c959c55fac5cb44e4a5d51ad838c9d2b279b401d10c1d995