[INFO] fetching crate str-concat 0.2.0...
[INFO] testing str-concat-0.2.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate str-concat 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate str-concat 0.2.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate str-concat 0.2.0
[INFO] finished tweaking crates.io crate str-concat 0.2.0
[INFO] tweaked toml for crates.io crate str-concat 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5f28ba6d93d399be778cff7e918d7dad3a4c012992c88118927acff6d5a7bdf
[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" "d5f28ba6d93d399be778cff7e918d7dad3a4c012992c88118927acff6d5a7bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5f28ba6d93d399be778cff7e918d7dad3a4c012992c88118927acff6d5a7bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f28ba6d93d399be778cff7e918d7dad3a4c012992c88118927acff6d5a7bdf", kill_on_drop: false }`
[INFO] [stdout] d5f28ba6d93d399be778cff7e918d7dad3a4c012992c88118927acff6d5a7bdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dcac34662b776e1cf5325ad56d2885e00d7e6bee7a408264b28e56624c4e3d4
[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" "2dcac34662b776e1cf5325ad56d2885e00d7e6bee7a408264b28e56624c4e3d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling str-concat v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "2dcac34662b776e1cf5325ad56d2885e00d7e6bee7a408264b28e56624c4e3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dcac34662b776e1cf5325ad56d2885e00d7e6bee7a408264b28e56624c4e3d4", kill_on_drop: false }`
[INFO] [stdout] 2dcac34662b776e1cf5325ad56d2885e00d7e6bee7a408264b28e56624c4e3d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed119ad60b7709e2fb2272e90d1e0e3200e64212082c048554fbe695f08168fd
[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" "ed119ad60b7709e2fb2272e90d1e0e3200e64212082c048554fbe695f08168fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling str-concat v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "ed119ad60b7709e2fb2272e90d1e0e3200e64212082c048554fbe695f08168fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed119ad60b7709e2fb2272e90d1e0e3200e64212082c048554fbe695f08168fd", kill_on_drop: false }`
[INFO] [stdout] ed119ad60b7709e2fb2272e90d1e0e3200e64212082c048554fbe695f08168fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92f8c4db73485946354c9fb13fe3c25118f7520a2c7ca8d2c8e29629cfc79539
[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" "92f8c4db73485946354c9fb13fe3c25118f7520a2c7ca8d2c8e29629cfc79539", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/str_concat-011f1eed75bc6250)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::bom ... ok
[INFO] [stdout] test tests::simple_success ... ok
[INFO] [stdout] test tests::typed_fail ... ok
[INFO] [stdout] test tests::zero_width_joiner ... ok
[INFO] [stdout] test tests::zst_fail ... ok
[INFO] [stdout] test tests::typed_slices ... ok
[INFO] [stdout] test tests::empty_str ... ok
[INFO] [stdout] test tests::unordered ... ok
[INFO] [stdout] test tests::simple_fail ... ok
[INFO] [stdout] test tests::zero_width_joiner_combining_grave ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests str-concat
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - concat_slice_unordered (line 244) ... ok
[INFO] [stdout] test src/lib.rs - concat_slice (line 112) ... ok
[INFO] [stdout] test src/lib.rs - concat (line 44) ... ok
[INFO] [stdout] test src/lib.rs - concat_slice (line 99) ... ok
[INFO] [stdout] test src/lib.rs - concat (line 33) ... ok
[INFO] [stdout] test src/lib.rs - concat_slice_unordered (line 257) ... ok
[INFO] [stdout] test src/lib.rs - concat_unordered (line 191) ... ok
[INFO] [stdout] test src/lib.rs - concat_unordered (line 202) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92f8c4db73485946354c9fb13fe3c25118f7520a2c7ca8d2c8e29629cfc79539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f8c4db73485946354c9fb13fe3c25118f7520a2c7ca8d2c8e29629cfc79539", kill_on_drop: false }`
[INFO] [stdout] 92f8c4db73485946354c9fb13fe3c25118f7520a2c7ca8d2c8e29629cfc79539