[INFO] fetching crate sloth 0.2.0...
[INFO] testing sloth-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate sloth 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate sloth 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sloth 0.2.0
[INFO] finished tweaking crates.io crate sloth 0.2.0
[INFO] tweaked toml for crates.io crate sloth 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f809120d5aee8027b0e92968a352ec07a9edcec70a4c1f5838758a18820de74b
[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" "f809120d5aee8027b0e92968a352ec07a9edcec70a4c1f5838758a18820de74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f809120d5aee8027b0e92968a352ec07a9edcec70a4c1f5838758a18820de74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f809120d5aee8027b0e92968a352ec07a9edcec70a4c1f5838758a18820de74b", kill_on_drop: false }`
[INFO] [stdout] f809120d5aee8027b0e92968a352ec07a9edcec70a4c1f5838758a18820de74b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 349594b64a288c984609058aa9a6e323f6878e1df01bd75a75d10a1bcd8bcc8e
[INFO] running `Command { std: "docker" "start" "-a" "349594b64a288c984609058aa9a6e323f6878e1df01bd75a75d10a1bcd8bcc8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling sloth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "349594b64a288c984609058aa9a6e323f6878e1df01bd75a75d10a1bcd8bcc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349594b64a288c984609058aa9a6e323f6878e1df01bd75a75d10a1bcd8bcc8e", kill_on_drop: false }`
[INFO] [stdout] 349594b64a288c984609058aa9a6e323f6878e1df01bd75a75d10a1bcd8bcc8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca91622f75010871ae3ae3da52a026af00e103a0bc0099e4ae1a276972df6968
[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" "ca91622f75010871ae3ae3da52a026af00e103a0bc0099e4ae1a276972df6968", kill_on_drop: false }`
[INFO] [stderr]    Compiling sloth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "ca91622f75010871ae3ae3da52a026af00e103a0bc0099e4ae1a276972df6968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca91622f75010871ae3ae3da52a026af00e103a0bc0099e4ae1a276972df6968", kill_on_drop: false }`
[INFO] [stdout] ca91622f75010871ae3ae3da52a026af00e103a0bc0099e4ae1a276972df6968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 9a38f066797c8b06d89d8563e7514d1d06fba9cf91e247cea5112ce8bfa4a06c
[INFO] running `Command { std: "docker" "start" "-a" "9a38f066797c8b06d89d8563e7514d1d06fba9cf91e247cea5112ce8bfa4a06c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 27 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sloth-65e301ee421acb2b)
[INFO] [stdout] test tests::lazy_init_borrow ... ok
[INFO] [stdout] test tests::lazy_init_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_init_deref ... ok
[INFO] [stdout] test tests::lazy_init_value_ref ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_str_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_value_drop_if_used ... ok
[INFO] [stdout] test tests::lazy_value_no_drop_if_unused ... ok
[INFO] [stdout] test tests::lazy_value_no_drop_on_unwrap ... ok
[INFO] [stdout] test tests::lazy_init_as_mut ... ok
[INFO] [stdout] test tests::lazy_init_value ... ok
[INFO] [stdout] test tests::lazy_evaluator_called_once ... ok
[INFO] [stdout] test tests::lazy_evaluator_never_called_if_unused ... ok
[INFO] [stdout] test tests::lazy_init_deref_mut ... ok
[INFO] [stdout] test tests::lazy_init_unwrap ... ok
[INFO] [stdout] test tests::lazy_init_value_mut ... ok
[INFO] [stderr]    Doc-tests sloth
[INFO] [stdout] test tests::lazy_init_as_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 46) ... ok
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 82) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 63) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9a38f066797c8b06d89d8563e7514d1d06fba9cf91e247cea5112ce8bfa4a06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a38f066797c8b06d89d8563e7514d1d06fba9cf91e247cea5112ce8bfa4a06c", kill_on_drop: false }`
[INFO] [stdout] 9a38f066797c8b06d89d8563e7514d1d06fba9cf91e247cea5112ce8bfa4a06c