[INFO] fetching crate async_chanx 0.1.0-alpha.1...
[INFO] checking async_chanx-0.1.0-alpha.1 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate async_chanx 0.1.0-alpha.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate async_chanx 0.1.0-alpha.1 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_chanx 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate async_chanx 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate async_chanx 0.1.0-alpha.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "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] e1d2643a4495416cbad0b986760dbae164f2804d8c5d949d5aa50bf707b970d8
[INFO] running `Command { std: "docker" "start" "-a" "e1d2643a4495416cbad0b986760dbae164f2804d8c5d949d5aa50bf707b970d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1d2643a4495416cbad0b986760dbae164f2804d8c5d949d5aa50bf707b970d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1d2643a4495416cbad0b986760dbae164f2804d8c5d949d5aa50bf707b970d8", kill_on_drop: false }`
[INFO] [stdout] e1d2643a4495416cbad0b986760dbae164f2804d8c5d949d5aa50bf707b970d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 363e6ca3040725632165e5774aa7b0f43031833eb32fcdd51d20deb3f4309050
[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" "363e6ca3040725632165e5774aa7b0f43031833eb32fcdd51d20deb3f4309050", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling async_executors v0.3.0
[INFO] [stderr]    Compiling async_chanx v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking web-sys v0.3.45
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking polling v0.1.9
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking futures-test v0.3.5
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stdout] error: couldn't read benches/spsc.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async_chanx`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: couldn't read benches/bounded.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "363e6ca3040725632165e5774aa7b0f43031833eb32fcdd51d20deb3f4309050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363e6ca3040725632165e5774aa7b0f43031833eb32fcdd51d20deb3f4309050", kill_on_drop: false }`
[INFO] [stdout] 363e6ca3040725632165e5774aa7b0f43031833eb32fcdd51d20deb3f4309050