[INFO] fetching crate stratos 0.1.11...
[INFO] checking stratos-0.1.11 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate stratos 0.1.11 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate stratos 0.1.11 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stratos 0.1.11
[INFO] finished tweaking crates.io crate stratos 0.1.11
[INFO] tweaked toml for crates.io crate stratos 0.1.11 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate stratos 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.46
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded untrusted v0.7.0
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.35
[INFO] [stderr]   Downloaded kern v1.1.6
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded failure_derive v0.1.7
[INFO] [stderr]   Downloaded ring v0.16.12
[INFO] [stderr]   Downloaded lhi v0.0.0-dev.13
[INFO] [stderr]   Downloaded svg v0.7.2
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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] bc7ed6a4af23b32f7ecf0ca9bce324cb1a84c2af2e70d493866a3afaf898221b
[INFO] running `Command { std: "docker" "start" "-a" "bc7ed6a4af23b32f7ecf0ca9bce324cb1a84c2af2e70d493866a3afaf898221b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc7ed6a4af23b32f7ecf0ca9bce324cb1a84c2af2e70d493866a3afaf898221b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7ed6a4af23b32f7ecf0ca9bce324cb1a84c2af2e70d493866a3afaf898221b", kill_on_drop: false }`
[INFO] [stdout] bc7ed6a4af23b32f7ecf0ca9bce324cb1a84c2af2e70d493866a3afaf898221b
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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] 8af03f4c2ec40ad14d7718a1de1f608f1031daac3e4e28edbed998dc1ffc0a3b
[INFO] running `Command { std: "docker" "start" "-a" "8af03f4c2ec40ad14d7718a1de1f608f1031daac3e4e28edbed998dc1ffc0a3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking kern v1.1.6
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling ring v0.16.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking lhi v0.0.0-dev.13
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking stratos v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.44s
[INFO] running `Command { std: "docker" "inspect" "8af03f4c2ec40ad14d7718a1de1f608f1031daac3e4e28edbed998dc1ffc0a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af03f4c2ec40ad14d7718a1de1f608f1031daac3e4e28edbed998dc1ffc0a3b", kill_on_drop: false }`
[INFO] [stdout] 8af03f4c2ec40ad14d7718a1de1f608f1031daac3e4e28edbed998dc1ffc0a3b