[INFO] fetching crate oxymcts 0.1.0...
[INFO] checking oxymcts-0.1.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate oxymcts 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate oxymcts 0.1.0 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 oxymcts 0.1.0
[INFO] finished tweaking crates.io crate oxymcts 0.1.0
[INFO] tweaked toml for crates.io crate oxymcts 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate oxymcts 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii_tree v0.1.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded ego-tree v0.6.2
[INFO] [stderr]   Downloaded noisy_float v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f48def7ab3f56b460e6c7f01665ea3f1ef7b293e7a4bc9efc1825c7262818ae6
[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" "f48def7ab3f56b460e6c7f01665ea3f1ef7b293e7a4bc9efc1825c7262818ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48def7ab3f56b460e6c7f01665ea3f1ef7b293e7a4bc9efc1825c7262818ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48def7ab3f56b460e6c7f01665ea3f1ef7b293e7a4bc9efc1825c7262818ae6", kill_on_drop: false }`
[INFO] [stdout] f48def7ab3f56b460e6c7f01665ea3f1ef7b293e7a4bc9efc1825c7262818ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dbd67f776cc26635ae8d131474b04225a8726e1512e03bbc279ca530ac6896ac
[INFO] running `Command { std: "docker" "start" "-a" "dbd67f776cc26635ae8d131474b04225a8726e1512e03bbc279ca530ac6896ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]     Checking ascii_tree v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking noisy_float v0.1.12
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking oxymcts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.77s
[INFO] running `Command { std: "docker" "inspect" "dbd67f776cc26635ae8d131474b04225a8726e1512e03bbc279ca530ac6896ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd67f776cc26635ae8d131474b04225a8726e1512e03bbc279ca530ac6896ac", kill_on_drop: false }`
[INFO] [stdout] dbd67f776cc26635ae8d131474b04225a8726e1512e03bbc279ca530ac6896ac