[INFO] fetching crate assert2 0.3.5...
[INFO] checking assert2-0.3.5 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate assert2 0.3.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate assert2 0.3.5 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed35d0e68a2ba5f230d686076d57b92a8ddb417ebb055d5ffc47e8ba9b09c0a1
[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" "ed35d0e68a2ba5f230d686076d57b92a8ddb417ebb055d5ffc47e8ba9b09c0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed35d0e68a2ba5f230d686076d57b92a8ddb417ebb055d5ffc47e8ba9b09c0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed35d0e68a2ba5f230d686076d57b92a8ddb417ebb055d5ffc47e8ba9b09c0a1", kill_on_drop: false }`
[INFO] [stdout] ed35d0e68a2ba5f230d686076d57b92a8ddb417ebb055d5ffc47e8ba9b09c0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3864131281255172d421db492a858087feefe503486d3df2ce32e14371e383
[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" "0c3864131281255172d421db492a858087feefe503486d3df2ce32e14371e383", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking atty v0.2.14
[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 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 18.56s
[INFO] running `Command { std: "docker" "inspect" "0c3864131281255172d421db492a858087feefe503486d3df2ce32e14371e383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3864131281255172d421db492a858087feefe503486d3df2ce32e14371e383", kill_on_drop: false }`
[INFO] [stdout] 0c3864131281255172d421db492a858087feefe503486d3df2ce32e14371e383