[INFO] fetching crate string2 0.1.4...
[INFO] testing string2-0.1.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate string2 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate string2 0.1.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string2 0.1.4
[INFO] finished tweaking crates.io crate string2 0.1.4
[INFO] tweaked toml for crates.io crate string2 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ad5e9be8c2f79f75ec1af2cda994fd13d359868827088e0243471bd017b0156
[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" "1ad5e9be8c2f79f75ec1af2cda994fd13d359868827088e0243471bd017b0156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ad5e9be8c2f79f75ec1af2cda994fd13d359868827088e0243471bd017b0156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad5e9be8c2f79f75ec1af2cda994fd13d359868827088e0243471bd017b0156", kill_on_drop: false }`
[INFO] [stdout] 1ad5e9be8c2f79f75ec1af2cda994fd13d359868827088e0243471bd017b0156
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05ecf68dbba532b24403e16fbb934cac9a732f4766e3530550f3a46e55f5d1dd
[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" "05ecf68dbba532b24403e16fbb934cac9a732f4766e3530550f3a46e55f5d1dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling string2 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "05ecf68dbba532b24403e16fbb934cac9a732f4766e3530550f3a46e55f5d1dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ecf68dbba532b24403e16fbb934cac9a732f4766e3530550f3a46e55f5d1dd", kill_on_drop: false }`
[INFO] [stdout] 05ecf68dbba532b24403e16fbb934cac9a732f4766e3530550f3a46e55f5d1dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60c9374195622bd9f995a4245a273ca447e89f3ef14e77ace13a06b1708298cf
[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" "60c9374195622bd9f995a4245a273ca447e89f3ef14e77ace13a06b1708298cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling string2 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "60c9374195622bd9f995a4245a273ca447e89f3ef14e77ace13a06b1708298cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60c9374195622bd9f995a4245a273ca447e89f3ef14e77ace13a06b1708298cf", kill_on_drop: false }`
[INFO] [stdout] 60c9374195622bd9f995a4245a273ca447e89f3ef14e77ace13a06b1708298cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62b56287e9a5b1fe23f6673ce621a3515a4820f40b80bc795386893e5b2edb01
[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" "62b56287e9a5b1fe23f6673ce621a3515a4820f40b80bc795386893e5b2edb01", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/string2-1081fe092ed682ce
[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] [stderr]    Doc-tests string2
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test src/lib.rs - String2 (line 148) ... ok
[INFO] [stdout] test src/lib.rs - String2 (line 70) ... ok
[INFO] [stdout] test src/lib.rs - String2::capacity (line 288) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_mut_slice (line 540) ... ok
[INFO] [stdout] test src/lib.rs - String2 (line 88) ... ok
[INFO] [stdout] test src/lib.rs - String2 (line 176) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_mut_vec (line 585) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_vec (line 564) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_slice (line 519) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_ptr (line 433) ... ok
[INFO] [stdout] test src/lib.rs - String2::as_bytes (line 497) ... ok
[INFO] [stdout] test src/lib.rs - String2 (line 61) ... ok
[INFO] [stdout] test src/lib.rs - String2 (line 117) ... ok
[INFO] [stdout] test src/lib.rs - String2::new (line 224) ... ok
[INFO] [stdout] test src/lib.rs - String2::from_raw_parts (line 469) ... ok
[INFO] [stdout] test src/lib.rs - String2::reserve (line 319) ... ok
[INFO] [stdout] test src/lib.rs - String2::reserve (line 331) ... ok
[INFO] [stdout] test src/lib.rs - String2::shrink_to_fit (line 409) ... ok
[INFO] [stdout] test src/lib.rs - String2::reserve_exact (line 369) ... ok
[INFO] [stdout] test src/lib.rs - String2::reserve_exact (line 381) ... ok
[INFO] [stdout] test src/lib.rs - String2::with_capacity (line 256) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "62b56287e9a5b1fe23f6673ce621a3515a4820f40b80bc795386893e5b2edb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b56287e9a5b1fe23f6673ce621a3515a4820f40b80bc795386893e5b2edb01", kill_on_drop: false }`
[INFO] [stdout] 62b56287e9a5b1fe23f6673ce621a3515a4820f40b80bc795386893e5b2edb01