[INFO] fetching crate snakeoil 0.1.0...
[INFO] checking snakeoil-0.1.0 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate snakeoil 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate snakeoil 0.1.0 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snakeoil 0.1.0
[INFO] finished tweaking crates.io crate snakeoil 0.1.0
[INFO] tweaked toml for crates.io crate snakeoil 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate snakeoil 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", 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] 4848c981e22366b3a61fcf2a3a331e48904cdbba2b6f89e03c52dfa87714e4cd
[INFO] running `Command { std: "docker" "start" "-a" "4848c981e22366b3a61fcf2a3a331e48904cdbba2b6f89e03c52dfa87714e4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4848c981e22366b3a61fcf2a3a331e48904cdbba2b6f89e03c52dfa87714e4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4848c981e22366b3a61fcf2a3a331e48904cdbba2b6f89e03c52dfa87714e4cd", kill_on_drop: false }`
[INFO] [stdout] 4848c981e22366b3a61fcf2a3a331e48904cdbba2b6f89e03c52dfa87714e4cd
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03657d9295cc7536dff60f3be1d318573d461a178795396b29895457427e529d
[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" "03657d9295cc7536dff60f3be1d318573d461a178795396b29895457427e529d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking parity-wasm v0.40.3
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking wasm-gen v0.1.3
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking wasmi-validation v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking wasmi v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking python_object v0.1.0
[INFO] [stderr]     Checking pyc v0.1.0
[INFO] [stderr]     Checking snakeoil-wasm v0.1.0
[INFO] [stderr]     Checking snakeoil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.63s
[INFO] running `Command { std: "docker" "inspect" "03657d9295cc7536dff60f3be1d318573d461a178795396b29895457427e529d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03657d9295cc7536dff60f3be1d318573d461a178795396b29895457427e529d", kill_on_drop: false }`
[INFO] [stdout] 03657d9295cc7536dff60f3be1d318573d461a178795396b29895457427e529d