[INFO] fetching crate redis_tang 0.2.0...
[INFO] checking redis_tang-0.2.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate redis_tang 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate redis_tang 0.2.0 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 redis_tang 0.2.0
[INFO] finished tweaking crates.io crate redis_tang 0.2.0
[INFO] tweaked toml for crates.io crate redis_tang 0.2.0 written to /workspace/builds/worker-0/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 tang-rs v0.2.0
[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" "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] [stdout] e1a38adefb920fa688d4de9ec0057e39444da0c97e83177987fc358341b3c164
[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" "e1a38adefb920fa688d4de9ec0057e39444da0c97e83177987fc358341b3c164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1a38adefb920fa688d4de9ec0057e39444da0c97e83177987fc358341b3c164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a38adefb920fa688d4de9ec0057e39444da0c97e83177987fc358341b3c164", kill_on_drop: false }`
[INFO] [stdout] e1a38adefb920fa688d4de9ec0057e39444da0c97e83177987fc358341b3c164
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7266c5a4f52ec486c095eb12b9afd93463a5940a681ec8e3a0a73daf5ca1061a
[INFO] running `Command { std: "docker" "start" "-a" "7266c5a4f52ec486c095eb12b9afd93463a5940a681ec8e3a0a73daf5ca1061a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking tang-rs v0.2.0
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tokio v1.8.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking redis v0.19.0
[INFO] [stderr]     Checking redis_tang v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.47s
[INFO] running `Command { std: "docker" "inspect" "7266c5a4f52ec486c095eb12b9afd93463a5940a681ec8e3a0a73daf5ca1061a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7266c5a4f52ec486c095eb12b9afd93463a5940a681ec8e3a0a73daf5ca1061a", kill_on_drop: false }`
[INFO] [stdout] 7266c5a4f52ec486c095eb12b9afd93463a5940a681ec8e3a0a73daf5ca1061a