[INFO] fetching crate duplexify 1.2.1...
[INFO] checking duplexify-1.2.1 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate duplexify 1.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate duplexify 1.2.1 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duplexify 1.2.1
[INFO] finished tweaking crates.io crate duplexify 1.2.1
[INFO] tweaked toml for crates.io crate duplexify 1.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate duplexify 1.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5aa7eac411ad5ed3afac2fa6418643a4e1713f491f229bc0e4fb224e183e276
[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" "e5aa7eac411ad5ed3afac2fa6418643a4e1713f491f229bc0e4fb224e183e276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5aa7eac411ad5ed3afac2fa6418643a4e1713f491f229bc0e4fb224e183e276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5aa7eac411ad5ed3afac2fa6418643a4e1713f491f229bc0e4fb224e183e276", kill_on_drop: false }`
[INFO] [stdout] e5aa7eac411ad5ed3afac2fa6418643a4e1713f491f229bc0e4fb224e183e276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45eba5e606cb3c7533e3a172987e18465d83397125dfb76457e2dcc081a8b1a2
[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" "45eba5e606cb3c7533e3a172987e18465d83397125dfb76457e2dcc081a8b1a2", 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 memchr v2.3.3
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking async-mutex v1.2.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking async-channel v1.4.1
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking polling v0.1.8
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking duplexify v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.01s
[INFO] running `Command { std: "docker" "inspect" "45eba5e606cb3c7533e3a172987e18465d83397125dfb76457e2dcc081a8b1a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45eba5e606cb3c7533e3a172987e18465d83397125dfb76457e2dcc081a8b1a2", kill_on_drop: false }`
[INFO] [stdout] 45eba5e606cb3c7533e3a172987e18465d83397125dfb76457e2dcc081a8b1a2