[INFO] fetching crate rbl_circular_buffer 0.1.2...
[INFO] checking rbl_circular_buffer-0.1.2 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate rbl_circular_buffer 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rbl_circular_buffer 0.1.2 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbl_circular_buffer 0.1.2
[INFO] finished tweaking crates.io crate rbl_circular_buffer 0.1.2
[INFO] tweaked toml for crates.io crate rbl_circular_buffer 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "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] 4ea5ada4348ea010d667b7e47fd90018e67c5b80f20a679a79a7b8f4da616597
[INFO] running `Command { std: "docker" "start" "-a" "4ea5ada4348ea010d667b7e47fd90018e67c5b80f20a679a79a7b8f4da616597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ea5ada4348ea010d667b7e47fd90018e67c5b80f20a679a79a7b8f4da616597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ea5ada4348ea010d667b7e47fd90018e67c5b80f20a679a79a7b8f4da616597", kill_on_drop: false }`
[INFO] [stdout] 4ea5ada4348ea010d667b7e47fd90018e67c5b80f20a679a79a7b8f4da616597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 8e25b4c15a8673146b5eca40ce79cb9620c23650dff9a823de4ea517e60d41e7
[INFO] running `Command { std: "docker" "start" "-a" "8e25b4c15a8673146b5eca40ce79cb9620c23650dff9a823de4ea517e60d41e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rbl_circular_buffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stdout] error[E0599]: no method named `fast_fill` found for struct `rbl_circular_buffer::CircularBuffer<{integer}>` in the current scope
[INFO] [stdout]   --> benches/fast_fill_vs_fill_by_hand.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |         t1.fast_fill(&mut d);
[INFO] [stdout]    |            ^^^^^^^^^ help: there is an associated function with a similar name: `_fast_fill`
[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 `rbl_circular_buffer`
[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[E0599]: no method named `fast_fill` found for struct `rbl_circular_buffer::CircularBuffer<usize>` in the current scope
[INFO] [stdout]   --> benches/fast_fill_vs_fill.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 bencher.iter(|| buffer.fast_fill(&mut drainer));
[INFO] [stdout]    |                                        ^^^^^^^^^ help: there is an associated function with a similar name: `_fast_fill`
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "8e25b4c15a8673146b5eca40ce79cb9620c23650dff9a823de4ea517e60d41e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e25b4c15a8673146b5eca40ce79cb9620c23650dff9a823de4ea517e60d41e7", kill_on_drop: false }`
[INFO] [stdout] 8e25b4c15a8673146b5eca40ce79cb9620c23650dff9a823de4ea517e60d41e7