[INFO] fetching crate string 0.2.1...
[INFO] testing string-0.2.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate string 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate string 0.2.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string 0.2.1
[INFO] finished tweaking crates.io crate string 0.2.1
[INFO] tweaked toml for crates.io crate string 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b0c9ccf9b175eeb9dd5ed8b9dbdc77a76306a97883a0c1848f9ebdf43efa06
[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" "71b0c9ccf9b175eeb9dd5ed8b9dbdc77a76306a97883a0c1848f9ebdf43efa06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b0c9ccf9b175eeb9dd5ed8b9dbdc77a76306a97883a0c1848f9ebdf43efa06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b0c9ccf9b175eeb9dd5ed8b9dbdc77a76306a97883a0c1848f9ebdf43efa06", kill_on_drop: false }`
[INFO] [stdout] 71b0c9ccf9b175eeb9dd5ed8b9dbdc77a76306a97883a0c1848f9ebdf43efa06
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", 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] 6e8f6bb7d8d4bc26d01de3cd1f1cefb6b3617fe099fd2309c5b39bc18c9f3528
[INFO] running `Command { std: "docker" "start" "-a" "6e8f6bb7d8d4bc26d01de3cd1f1cefb6b3617fe099fd2309c5b39bc18c9f3528", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling string v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "6e8f6bb7d8d4bc26d01de3cd1f1cefb6b3617fe099fd2309c5b39bc18c9f3528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8f6bb7d8d4bc26d01de3cd1f1cefb6b3617fe099fd2309c5b39bc18c9f3528", kill_on_drop: false }`
[INFO] [stdout] 6e8f6bb7d8d4bc26d01de3cd1f1cefb6b3617fe099fd2309c5b39bc18c9f3528
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", 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] 07a8f1f7a6d0e1a1b8ae9232815e4b10e387925f6e5dec4f8cab014b18716dfe
[INFO] running `Command { std: "docker" "start" "-a" "07a8f1f7a6d0e1a1b8ae9232815e4b10e387925f6e5dec4f8cab014b18716dfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling string v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "07a8f1f7a6d0e1a1b8ae9232815e4b10e387925f6e5dec4f8cab014b18716dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a8f1f7a6d0e1a1b8ae9232815e4b10e387925f6e5dec4f8cab014b18716dfe", kill_on_drop: false }`
[INFO] [stdout] 07a8f1f7a6d0e1a1b8ae9232815e4b10e387925f6e5dec4f8cab014b18716dfe
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79919bf093e25f49ff943fe3b2a7fa0a5599a995bb33fa3e449f93001f357bf7
[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" "79919bf093e25f49ff943fe3b2a7fa0a5599a995bb33fa3e449f93001f357bf7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/string-6445ba9fd7ef430a
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::test_try_from_bytes ... ok
[INFO] [stdout] test test::test_from_std_string ... ok
[INFO] [stdout] test test::test_from_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests string
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - String<T>::get_mut (line 64) ... ok
[INFO] [stdout] test src/lib.rs - String<T>::get_ref (line 48) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/lib.rs - String<T>::into_inner (line 80) ... ok
[INFO] [stdout] test src/lib.rs - String<T>::from_str (line 93) ... ok
[INFO] [stdout] test src/lib.rs - String::new (line 114) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79919bf093e25f49ff943fe3b2a7fa0a5599a995bb33fa3e449f93001f357bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79919bf093e25f49ff943fe3b2a7fa0a5599a995bb33fa3e449f93001f357bf7", kill_on_drop: false }`
[INFO] [stdout] 79919bf093e25f49ff943fe3b2a7fa0a5599a995bb33fa3e449f93001f357bf7