[INFO] fetching crate rstr 0.1.0...
[INFO] checking rstr-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate rstr 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rstr 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstr 0.1.0
[INFO] finished tweaking crates.io crate rstr 0.1.0
[INFO] tweaked toml for crates.io crate rstr 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tree_magic_mini v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 7b799876283c0cb9fd933b91beba46a74f1535a1b3cd0448d31e145bb2438227
[INFO] running `Command { std: "docker" "start" "-a" "7b799876283c0cb9fd933b91beba46a74f1535a1b3cd0448d31e145bb2438227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b799876283c0cb9fd933b91beba46a74f1535a1b3cd0448d31e145bb2438227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b799876283c0cb9fd933b91beba46a74f1535a1b3cd0448d31e145bb2438227", kill_on_drop: false }`
[INFO] [stdout] 7b799876283c0cb9fd933b91beba46a74f1535a1b3cd0448d31e145bb2438227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c46c28ac1a9dbcb77b8d2fa43315a6f2eff126edb4972b811260a8143715ce71
[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" "c46c28ac1a9dbcb77b8d2fa43315a6f2eff126edb4972b811260a8143715ce71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking tree_magic_mini v3.0.0
[INFO] [stderr]     Checking rstr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.51s
[INFO] running `Command { std: "docker" "inspect" "c46c28ac1a9dbcb77b8d2fa43315a6f2eff126edb4972b811260a8143715ce71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c46c28ac1a9dbcb77b8d2fa43315a6f2eff126edb4972b811260a8143715ce71", kill_on_drop: false }`
[INFO] [stdout] c46c28ac1a9dbcb77b8d2fa43315a6f2eff126edb4972b811260a8143715ce71