[INFO] fetching crate dynagrad 0.4.1...
[INFO] testing dynagrad-0.4.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate dynagrad 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dynagrad 0.4.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynagrad 0.4.1
[INFO] finished tweaking crates.io crate dynagrad 0.4.1
[INFO] tweaked toml for crates.io crate dynagrad 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate dynagrad 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-6/source/examples/simple.rs
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b445bc1009bd35f21418cc831edca25dd59c31b306442f37e670d624dc20fe7
[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" "5b445bc1009bd35f21418cc831edca25dd59c31b306442f37e670d624dc20fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b445bc1009bd35f21418cc831edca25dd59c31b306442f37e670d624dc20fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b445bc1009bd35f21418cc831edca25dd59c31b306442f37e670d624dc20fe7", kill_on_drop: false }`
[INFO] [stdout] 5b445bc1009bd35f21418cc831edca25dd59c31b306442f37e670d624dc20fe7
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cc44c94e4795bdd60a3757f9a123ebfcc6e8587fa8fba85b32aace48656a4c3
[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" "2cc44c94e4795bdd60a3757f9a123ebfcc6e8587fa8fba85b32aace48656a4c3", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/simple.rs
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling gnuplot v0.0.32
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling dynagrad v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `as_raw` found for struct `std::rc::Weak` in the current scope
[INFO] [stdout]   --> src/core.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |         (Weak::as_raw(&p) as usize).hash(state);
[INFO] [stdout]    |                ^^^^^^ function or associated item not found in `std::rc::Weak<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dynagrad` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2cc44c94e4795bdd60a3757f9a123ebfcc6e8587fa8fba85b32aace48656a4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc44c94e4795bdd60a3757f9a123ebfcc6e8587fa8fba85b32aace48656a4c3", kill_on_drop: false }`
[INFO] [stdout] 2cc44c94e4795bdd60a3757f9a123ebfcc6e8587fa8fba85b32aace48656a4c3