[INFO] fetching crate stk 0.2.1...
[INFO] checking stk-0.2.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate stk 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stk 0.2.1 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 stk 0.2.1
[INFO] finished tweaking crates.io crate stk 0.2.1
[INFO] tweaked toml for crates.io crate stk 0.2.1 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e49c42209a77bed1715c2acdbe3197b7628dee2e296aeab67cae078e191d639d
[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" "e49c42209a77bed1715c2acdbe3197b7628dee2e296aeab67cae078e191d639d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e49c42209a77bed1715c2acdbe3197b7628dee2e296aeab67cae078e191d639d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49c42209a77bed1715c2acdbe3197b7628dee2e296aeab67cae078e191d639d", kill_on_drop: false }`
[INFO] [stdout] e49c42209a77bed1715c2acdbe3197b7628dee2e296aeab67cae078e191d639d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6a8f247365eabf505285202cc6b8f8e20b623fafba8d105349250eaaaf31b997
[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" "6a8f247365eabf505285202cc6b8f8e20b623fafba8d105349250eaaaf31b997", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking stk v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.40s
[INFO] running `Command { std: "docker" "inspect" "6a8f247365eabf505285202cc6b8f8e20b623fafba8d105349250eaaaf31b997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8f247365eabf505285202cc6b8f8e20b623fafba8d105349250eaaaf31b997", kill_on_drop: false }`
[INFO] [stdout] 6a8f247365eabf505285202cc6b8f8e20b623fafba8d105349250eaaaf31b997