[INFO] fetching crate matrix-sdk-common 0.1.0...
[INFO] checking matrix-sdk-common-0.1.0 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate matrix-sdk-common 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate matrix-sdk-common 0.1.0 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate matrix-sdk-common 0.1.0
[INFO] finished tweaking crates.io crate matrix-sdk-common 0.1.0
[INFO] tweaked toml for crates.io crate matrix-sdk-common 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4363b5449a17b991096e03eb60882815d9e09f1071cf7f639458c0f4989b8c2
[INFO] running `"docker" "start" "-a" "b4363b5449a17b991096e03eb60882815d9e09f1071cf7f639458c0f4989b8c2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling ruma-events-macros v0.21.3
[INFO] [stderr]    Compiling ruma-api-macros v0.16.1
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking js_int v0.1.5
[INFO] [stderr]     Checking ruma-identifiers v0.16.2
[INFO] [stderr]     Checking ruma-serde v0.2.2
[INFO] [stderr]     Checking ruma-common v0.1.2
[INFO] [stderr]     Checking ruma-api v0.16.1
[INFO] [stderr]     Checking ruma-events v0.21.3
[INFO] [stderr]     Checking ruma-client-api v0.9.0
[INFO] [stderr]     Checking matrix-sdk-common v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 44s
[INFO] running `"docker" "inspect" "b4363b5449a17b991096e03eb60882815d9e09f1071cf7f639458c0f4989b8c2"`
[INFO] running `"docker" "rm" "-f" "b4363b5449a17b991096e03eb60882815d9e09f1071cf7f639458c0f4989b8c2"`
[INFO] [stdout] b4363b5449a17b991096e03eb60882815d9e09f1071cf7f639458c0f4989b8c2