[INFO] fetching crate aktrs 0.1.0-alpha.5...
[INFO] checking aktrs-0.1.0-alpha.5 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate aktrs 0.1.0-alpha.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate aktrs 0.1.0-alpha.5 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aktrs 0.1.0-alpha.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate aktrs 0.1.0-alpha.5
[INFO] tweaked toml for crates.io crate aktrs 0.1.0-alpha.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate aktrs 0.1.0-alpha.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae619513e906c27b908b6c692fd55a548f5cbe201da9615a0bf39267e7f05e7d
[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" "ae619513e906c27b908b6c692fd55a548f5cbe201da9615a0bf39267e7f05e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae619513e906c27b908b6c692fd55a548f5cbe201da9615a0bf39267e7f05e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae619513e906c27b908b6c692fd55a548f5cbe201da9615a0bf39267e7f05e7d", kill_on_drop: false }`
[INFO] [stdout] ae619513e906c27b908b6c692fd55a548f5cbe201da9615a0bf39267e7f05e7d
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95b85d2702b60ac96065e20dc66ff5e9861a0b2fcabfc7b4d08b93d0d04e95b9
[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" "95b85d2702b60ac96065e20dc66ff5e9861a0b2fcabfc7b4d08b93d0d04e95b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking aktrs v0.1.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/actor/cell.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / pin_project! {
[INFO] [stdout] 52 | |     struct Ask<F, T, R, M> {
[INFO] [stdout] 53 | |         #[pin]
[INFO] [stdout] 54 | |         future: F,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     }
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/actor/cell.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / pin_project! {
[INFO] [stdout] 52 | |     struct Ask<F, T, R, M> {
[INFO] [stdout] 53 | |         #[pin]
[INFO] [stdout] 54 | |         future: F,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     }
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `$crate::pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/actor/cell.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / pin_project! {
[INFO] [stdout] 52 | |     struct Ask<F, T, R, M> {
[INFO] [stdout] 53 | |         #[pin]
[INFO] [stdout] 54 | |         future: F,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     }
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/actor/cell.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / pin_project! {
[INFO] [stdout] 52 | |     struct Ask<F, T, R, M> {
[INFO] [stdout] 53 | |         #[pin]
[INFO] [stdout] 54 | |         future: F,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     }
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `$crate::pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.03s
[INFO] running `Command { std: "docker" "inspect" "95b85d2702b60ac96065e20dc66ff5e9861a0b2fcabfc7b4d08b93d0d04e95b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b85d2702b60ac96065e20dc66ff5e9861a0b2fcabfc7b4d08b93d0d04e95b9", kill_on_drop: false }`
[INFO] [stdout] 95b85d2702b60ac96065e20dc66ff5e9861a0b2fcabfc7b4d08b93d0d04e95b9