[INFO] fetching crate bytes_chain 1.1.8...
[INFO] checking bytes_chain-1.1.8 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate bytes_chain 1.1.8 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate bytes_chain 1.1.8 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bytes_chain 1.1.8
[INFO] finished tweaking crates.io crate bytes_chain 1.1.8
[INFO] tweaked toml for crates.io crate bytes_chain 1.1.8 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a6ebae94f5368d0bbcaf4bf526ae86064fd6d2646637bc9d913804ccee11ff1
[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" "3a6ebae94f5368d0bbcaf4bf526ae86064fd6d2646637bc9d913804ccee11ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6ebae94f5368d0bbcaf4bf526ae86064fd6d2646637bc9d913804ccee11ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6ebae94f5368d0bbcaf4bf526ae86064fd6d2646637bc9d913804ccee11ff1", kill_on_drop: false }`
[INFO] [stdout] 3a6ebae94f5368d0bbcaf4bf526ae86064fd6d2646637bc9d913804ccee11ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfa462456fd6c4a1bf37f874add11d64b4fda14505553893b4851bd2dc1a40d5
[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" "dfa462456fd6c4a1bf37f874add11d64b4fda14505553893b4851bd2dc1a40d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking bytes_chain v1.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `NumberAble` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 4   | use crate::NumberAble;
[INFO] [stdout]     |     ----------------- the item `NumberAble` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 141 |         use crate::NumberAble;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/number.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn tf<T>(buf: &NumberAble, i: usize) -> T
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn NumberAble`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NumberAble` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 4   | use crate::NumberAble;
[INFO] [stdout]     |     ----------------- the item `NumberAble` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 141 |         use crate::NumberAble;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/number.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn tf<T>(buf: &NumberAble, i: usize) -> T
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn NumberAble`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "dfa462456fd6c4a1bf37f874add11d64b4fda14505553893b4851bd2dc1a40d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa462456fd6c4a1bf37f874add11d64b4fda14505553893b4851bd2dc1a40d5", kill_on_drop: false }`
[INFO] [stdout] dfa462456fd6c4a1bf37f874add11d64b4fda14505553893b4851bd2dc1a40d5