[INFO] fetching crate string_ext 0.0.2...
[INFO] testing string_ext-0.0.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate string_ext 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate string_ext 0.0.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string_ext 0.0.2
[INFO] finished tweaking crates.io crate string_ext 0.0.2
[INFO] tweaked toml for crates.io crate string_ext 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c2e98c69ae3bb865031445426f1f68c8c131499c9e345c8e8ccdc4707a7a610
[INFO] running `Command { std: "docker" "start" "-a" "7c2e98c69ae3bb865031445426f1f68c8c131499c9e345c8e8ccdc4707a7a610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c2e98c69ae3bb865031445426f1f68c8c131499c9e345c8e8ccdc4707a7a610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c2e98c69ae3bb865031445426f1f68c8c131499c9e345c8e8ccdc4707a7a610", kill_on_drop: false }`
[INFO] [stdout] 7c2e98c69ae3bb865031445426f1f68c8c131499c9e345c8e8ccdc4707a7a610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 310da846c59aeacab3880c5dc9e1307c169adde4f69c6188440146efe4aec043
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "310da846c59aeacab3880c5dc9e1307c169adde4f69c6188440146efe4aec043", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_ext v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "310da846c59aeacab3880c5dc9e1307c169adde4f69c6188440146efe4aec043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310da846c59aeacab3880c5dc9e1307c169adde4f69c6188440146efe4aec043", kill_on_drop: false }`
[INFO] [stdout] 310da846c59aeacab3880c5dc9e1307c169adde4f69c6188440146efe4aec043
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0231a57fc796a51afb74ce0fb0c629311676debb3b20e66b659435461075e87
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0231a57fc796a51afb74ce0fb0c629311676debb3b20e66b659435461075e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling string_ext v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/string_ext-e7ad7a7f29214ef3)
[INFO] running `Command { std: "docker" "inspect" "b0231a57fc796a51afb74ce0fb0c629311676debb3b20e66b659435461075e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0231a57fc796a51afb74ce0fb0c629311676debb3b20e66b659435461075e87", kill_on_drop: false }`
[INFO] [stdout] b0231a57fc796a51afb74ce0fb0c629311676debb3b20e66b659435461075e87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f5dafa1b23543235dff7e928f9bf3fd459ac69a05ffd9dd20c64207e40433e20
[INFO] running `Command { std: "docker" "start" "-a" "f5dafa1b23543235dff7e928f9bf3fd459ac69a05ffd9dd20c64207e40433e20", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/string_ext-e7ad7a7f29214ef3)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests string_ext
[INFO] [stdout] test tests::test_substring_after ... ok
[INFO] [stdout] test tests::test_substring_before ... ok
[INFO] [stdout] test tests::test_substring_between ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5dafa1b23543235dff7e928f9bf3fd459ac69a05ffd9dd20c64207e40433e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5dafa1b23543235dff7e928f9bf3fd459ac69a05ffd9dd20c64207e40433e20", kill_on_drop: false }`
[INFO] [stdout] f5dafa1b23543235dff7e928f9bf3fd459ac69a05ffd9dd20c64207e40433e20