[INFO] crate immut_string 0.1.0 is already in cache
[INFO] testing immut_string-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate immut_string 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate immut_string 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate immut_string 0.1.0
[INFO] finished tweaking crates.io crate immut_string 0.1.0
[INFO] tweaked toml for crates.io crate immut_string 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 88bb3ed477c63e3f0223ad689d3f815d1eea51f33beb3ec70291c052f04db49f
[INFO] running `"docker" "start" "-a" "88bb3ed477c63e3f0223ad689d3f815d1eea51f33beb3ec70291c052f04db49f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling immut_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "88bb3ed477c63e3f0223ad689d3f815d1eea51f33beb3ec70291c052f04db49f"`
[INFO] running `"docker" "rm" "-f" "88bb3ed477c63e3f0223ad689d3f815d1eea51f33beb3ec70291c052f04db49f"`
[INFO] [stdout] 88bb3ed477c63e3f0223ad689d3f815d1eea51f33beb3ec70291c052f04db49f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c641291251ff6f028423aa36372a3ebe112503864ff9d039033d4c4d61e49b3e
[INFO] running `"docker" "start" "-a" "c641291251ff6f028423aa36372a3ebe112503864ff9d039033d4c4d61e49b3e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling immut_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "c641291251ff6f028423aa36372a3ebe112503864ff9d039033d4c4d61e49b3e"`
[INFO] running `"docker" "rm" "-f" "c641291251ff6f028423aa36372a3ebe112503864ff9d039033d4c4d61e49b3e"`
[INFO] [stdout] c641291251ff6f028423aa36372a3ebe112503864ff9d039033d4c4d61e49b3e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c2241541ad68d3bdc01c83042f14c596b4b9a10f1f5d8df0ad4859b1f818a0e
[INFO] running `"docker" "start" "-a" "9c2241541ad68d3bdc01c83042f14c596b4b9a10f1f5d8df0ad4859b1f818a0e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/immut_string-f139f3fbaa5aa6be
[INFO] [stderr]    Doc-tests immut_string
[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 5 tests
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString (line 9) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 97) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 191) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 141) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 166) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9c2241541ad68d3bdc01c83042f14c596b4b9a10f1f5d8df0ad4859b1f818a0e"`
[INFO] running `"docker" "rm" "-f" "9c2241541ad68d3bdc01c83042f14c596b4b9a10f1f5d8df0ad4859b1f818a0e"`
[INFO] [stdout] 9c2241541ad68d3bdc01c83042f14c596b4b9a10f1f5d8df0ad4859b1f818a0e