[INFO] fetching crate aktrs 0.1.0-alpha.5...
[INFO] checking aktrs-0.1.0-alpha.5 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate aktrs 0.1.0-alpha.5 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate aktrs 0.1.0-alpha.5 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-1-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 871c27b5913a28e39dcd7a92b1531e1c5dbf9902dce756e989e46dd1982fd0c1
[INFO] running `Command { std: "docker" "start" "-a" "871c27b5913a28e39dcd7a92b1531e1c5dbf9902dce756e989e46dd1982fd0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "871c27b5913a28e39dcd7a92b1531e1c5dbf9902dce756e989e46dd1982fd0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871c27b5913a28e39dcd7a92b1531e1c5dbf9902dce756e989e46dd1982fd0c1", kill_on_drop: false }`
[INFO] [stdout] 871c27b5913a28e39dcd7a92b1531e1c5dbf9902dce756e989e46dd1982fd0c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 302ea9860277bbe890f17782127dbc26e22cfe2b1ab1d5a0af75c6f29329191a
[INFO] running `Command { std: "docker" "start" "-a" "302ea9860277bbe890f17782127dbc26e22cfe2b1ab1d5a0af75c6f29329191a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
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[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
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[INFO] [stderr]    Compiling syn v1.0.22
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[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 maybe-uninit v2.0.0
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[INFO] [stderr]     Checking scopeguard v1.1.0
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[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
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[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]     Checking clap v2.33.1
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[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]     Checking regex v1.3.7
[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 `$crate::pin_project` which comes from the expansion of the macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/actor/cell.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / pin_project! {
[INFO] [stdout] 52 | |     struct Ask<F, T, R, M> {
[INFO] [stdout] 53 | |         #[pin]
[INFO] [stdout] 54 | |         future: F,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     }
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::pin_project` which comes from the expansion of the macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "302ea9860277bbe890f17782127dbc26e22cfe2b1ab1d5a0af75c6f29329191a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302ea9860277bbe890f17782127dbc26e22cfe2b1ab1d5a0af75c6f29329191a", kill_on_drop: false }`
[INFO] [stdout] 302ea9860277bbe890f17782127dbc26e22cfe2b1ab1d5a0af75c6f29329191a