[INFO] fetching crate stack-string 0.2.6...
[INFO] testing stack-string-0.2.6 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate stack-string 0.2.6 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stack-string 0.2.6 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stack-string 0.2.6
[INFO] finished tweaking crates.io crate stack-string 0.2.6
[INFO] tweaked toml for crates.io crate stack-string 0.2.6 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf36f33a35a21f154072ebf94e75e0dc896fd4e99ce5999948a29856b0171a96
[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" "cf36f33a35a21f154072ebf94e75e0dc896fd4e99ce5999948a29856b0171a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf36f33a35a21f154072ebf94e75e0dc896fd4e99ce5999948a29856b0171a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf36f33a35a21f154072ebf94e75e0dc896fd4e99ce5999948a29856b0171a96", kill_on_drop: false }`
[INFO] [stdout] cf36f33a35a21f154072ebf94e75e0dc896fd4e99ce5999948a29856b0171a96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 3e481b68ea677a574a60e4067e8ddfb1c00e2c2543bfb76a71ead2a1ec5e3699
[INFO] running `Command { std: "docker" "start" "-a" "3e481b68ea677a574a60e4067e8ddfb1c00e2c2543bfb76a71ead2a1ec5e3699", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling smartstring v0.2.6
[INFO] [stderr]    Compiling stack-string v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.32s
[INFO] running `Command { std: "docker" "inspect" "3e481b68ea677a574a60e4067e8ddfb1c00e2c2543bfb76a71ead2a1ec5e3699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e481b68ea677a574a60e4067e8ddfb1c00e2c2543bfb76a71ead2a1ec5e3699", kill_on_drop: false }`
[INFO] [stdout] 3e481b68ea677a574a60e4067e8ddfb1c00e2c2543bfb76a71ead2a1ec5e3699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0d2422ecaf92305d011da9d9e390ef7eda79496872df8ae3e4ebf5db3d4849
[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" "6a0d2422ecaf92305d011da9d9e390ef7eda79496872df8ae3e4ebf5db3d4849", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling stack-string v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "6a0d2422ecaf92305d011da9d9e390ef7eda79496872df8ae3e4ebf5db3d4849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0d2422ecaf92305d011da9d9e390ef7eda79496872df8ae3e4ebf5db3d4849", kill_on_drop: false }`
[INFO] [stdout] 6a0d2422ecaf92305d011da9d9e390ef7eda79496872df8ae3e4ebf5db3d4849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2e0350a3dd570b290c42a9f964e49b00fcfe70d1a8f1df12e64b42a52c1ffa8
[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" "a2e0350a3dd570b290c42a9f964e49b00fcfe70d1a8f1df12e64b42a52c1ffa8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack_string-92aae7e2192b2920)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::test_borrow ... ok
[INFO] [stdout] test tests::test_contains_char ... ok
[INFO] [stdout] test tests::test_contains_stackstring ... ok
[INFO] [stdout] test tests::test_as_ref ... ok
[INFO] [stdout] test tests::test_default ... ok
[INFO] [stdout] test tests::test_equality ... ok
[INFO] [stdout] test tests::test_from_str ... ok
[INFO] [stdout] test tests::test_from_iterator_char ... ok
[INFO] [stdout] test tests::test_from_utf8 ... ok
[INFO] [stdout] test tests::test_partial_eq_string ... ok
[INFO] [stdout] test tests::test_partialeq_cow ... ok
[INFO] [stdout] test tests::test_stackstring_from_string ... ok
[INFO] [stdout] test tests::test_split_off ... ok
[INFO] [stdout] test tests::test_string_from_stackstring ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stack-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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a2e0350a3dd570b290c42a9f964e49b00fcfe70d1a8f1df12e64b42a52c1ffa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e0350a3dd570b290c42a9f964e49b00fcfe70d1a8f1df12e64b42a52c1ffa8", kill_on_drop: false }`
[INFO] [stdout] a2e0350a3dd570b290c42a9f964e49b00fcfe70d1a8f1df12e64b42a52c1ffa8