[INFO] fetching crate strata 0.1.1...
[INFO] checking strata-0.1.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate strata 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate strata 0.1.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strata 0.1.1
[INFO] finished tweaking crates.io crate strata 0.1.1
[INFO] tweaked toml for crates.io crate strata 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e6d11f81d293fa7f7be0a600af88cee1906b4854f3e1714c4c0c1e5bb5b5c30
[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" "3e6d11f81d293fa7f7be0a600af88cee1906b4854f3e1714c4c0c1e5bb5b5c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6d11f81d293fa7f7be0a600af88cee1906b4854f3e1714c4c0c1e5bb5b5c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6d11f81d293fa7f7be0a600af88cee1906b4854f3e1714c4c0c1e5bb5b5c30", kill_on_drop: false }`
[INFO] [stdout] 3e6d11f81d293fa7f7be0a600af88cee1906b4854f3e1714c4c0c1e5bb5b5c30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58555fd1e5572a57d8340c6b09cf8cb038de8c8da48de1e99578d249c859ae2d
[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" "58555fd1e5572a57d8340c6b09cf8cb038de8c8da48de1e99578d249c859ae2d", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking strata v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1112:33
[INFO] [stdout]      |
[INFO] [stdout] 1112 |         fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1881:51
[INFO] [stdout]      |
[INFO] [stdout] 1881 |         fn clone_quickcheck_algebra(&self) -> Box<QuickcheckAlgebra + Send>;
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn QuickcheckAlgebra + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1888:51
[INFO] [stdout]      |
[INFO] [stdout] 1888 |         fn clone_quickcheck_algebra(&self) -> Box<QuickcheckAlgebra + Send> {
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn QuickcheckAlgebra + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1894:37
[INFO] [stdout]      |
[INFO] [stdout] 1894 |     struct ArbitraryAlgebraTree(Box<QuickcheckAlgebra + Send>);
[INFO] [stdout]      |                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn QuickcheckAlgebra + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1937:32
[INFO] [stdout]      |
[INFO] [stdout] 1937 |                     let c: Box<QuickcheckAlgebra + Send> = match g.gen_range(0, 7) {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn QuickcheckAlgebra + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.37s
[INFO] running `Command { std: "docker" "inspect" "58555fd1e5572a57d8340c6b09cf8cb038de8c8da48de1e99578d249c859ae2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58555fd1e5572a57d8340c6b09cf8cb038de8c8da48de1e99578d249c859ae2d", kill_on_drop: false }`
[INFO] [stdout] 58555fd1e5572a57d8340c6b09cf8cb038de8c8da48de1e99578d249c859ae2d