[INFO] fetching crate elk 0.3.1...
[INFO] checking elk-0.3.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate elk 0.3.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate elk 0.3.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elk 0.3.1
[INFO] finished tweaking crates.io crate elk 0.3.1
[INFO] tweaked toml for crates.io crate elk 0.3.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate elk 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cd08ea60a3dcdcf3c1b8d6cd661e809bc2052e7b0074588d79d6d57956ed56c
[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" "9cd08ea60a3dcdcf3c1b8d6cd661e809bc2052e7b0074588d79d6d57956ed56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cd08ea60a3dcdcf3c1b8d6cd661e809bc2052e7b0074588d79d6d57956ed56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd08ea60a3dcdcf3c1b8d6cd661e809bc2052e7b0074588d79d6d57956ed56c", kill_on_drop: false }`
[INFO] [stdout] 9cd08ea60a3dcdcf3c1b8d6cd661e809bc2052e7b0074588d79d6d57956ed56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 746693542b9c9fae7642d39d775244c0b113d70d86531dcef9dd2fe5cd324655
[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" "746693542b9c9fae7642d39d775244c0b113d70d86531dcef9dd2fe5cd324655", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking filesize v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]    Compiling serde_test v1.0.117
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling linear-map v1.2.0
[INFO] [stderr]    Compiling config_struct v0.5.0
[INFO] [stderr]    Compiling elk v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "746693542b9c9fae7642d39d775244c0b113d70d86531dcef9dd2fe5cd324655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746693542b9c9fae7642d39d775244c0b113d70d86531dcef9dd2fe5cd324655", kill_on_drop: false }`
[INFO] [stdout] 746693542b9c9fae7642d39d775244c0b113d70d86531dcef9dd2fe5cd324655