[INFO] fetching crate assert2 0.3.5...
[INFO] checking assert2-0.3.5 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate assert2 0.3.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate assert2 0.3.5 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert2 0.3.5
[INFO] finished tweaking crates.io crate assert2 0.3.5
[INFO] tweaked toml for crates.io crate assert2 0.3.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate assert2 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert2-macros v0.3.4
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c7d2e09c8c1257b01c2d685f68b6531623a8d39e1b5b8cd5f2f643d7ea903dc
[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" "8c7d2e09c8c1257b01c2d685f68b6531623a8d39e1b5b8cd5f2f643d7ea903dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c7d2e09c8c1257b01c2d685f68b6531623a8d39e1b5b8cd5f2f643d7ea903dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7d2e09c8c1257b01c2d685f68b6531623a8d39e1b5b8cd5f2f643d7ea903dc", kill_on_drop: false }`
[INFO] [stdout] 8c7d2e09c8c1257b01c2d685f68b6531623a8d39e1b5b8cd5f2f643d7ea903dc
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44044893ee2054be962d2430daf66364452173e9e080833b6b8c6154b10ecaab
[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" "44044893ee2054be962d2430daf66364452173e9e080833b6b8c6154b10ecaab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling assert2-macros v0.3.4
[INFO] [stderr]     Checking assert2 v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::os::raw::c_int`
[INFO] [stdout]  --> src/__assert2_impl/print.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::os::raw::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_int`
[INFO] [stdout]  --> src/__assert2_impl/print.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::os::raw::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.44s
[INFO] running `Command { std: "docker" "inspect" "44044893ee2054be962d2430daf66364452173e9e080833b6b8c6154b10ecaab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44044893ee2054be962d2430daf66364452173e9e080833b6b8c6154b10ecaab", kill_on_drop: false }`
[INFO] [stdout] 44044893ee2054be962d2430daf66364452173e9e080833b6b8c6154b10ecaab