[INFO] fetching crate matrix-sdk-common 0.1.0...
[INFO] checking matrix-sdk-common-0.1.0 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate matrix-sdk-common 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate matrix-sdk-common 0.1.0 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 357a75c6e231177f0eb00d1adb41673ce0d10bf99571304b24d41058caca9fcb
[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" "357a75c6e231177f0eb00d1adb41673ce0d10bf99571304b24d41058caca9fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "357a75c6e231177f0eb00d1adb41673ce0d10bf99571304b24d41058caca9fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "357a75c6e231177f0eb00d1adb41673ce0d10bf99571304b24d41058caca9fcb", kill_on_drop: false }`
[INFO] [stdout] 357a75c6e231177f0eb00d1adb41673ce0d10bf99571304b24d41058caca9fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e981abe6407f002e248b93f2f57ec9677cd6ef998f1cd7900bc8ecd365c5f9f
[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" "1e981abe6407f002e248b93f2f57ec9677cd6ef998f1cd7900bc8ecd365c5f9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling ruma-api-macros v0.16.1
[INFO] [stderr]    Compiling ruma-events-macros v0.21.3
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking js_int v0.1.9
[INFO] [stderr]     Checking ruma-identifiers v0.16.2
[INFO] [stderr]     Checking ruma-serde v0.2.3
[INFO] [stderr]     Checking ruma-common v0.1.3
[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 35s
[INFO] running `Command { std: "docker" "inspect" "1e981abe6407f002e248b93f2f57ec9677cd6ef998f1cd7900bc8ecd365c5f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e981abe6407f002e248b93f2f57ec9677cd6ef998f1cd7900bc8ecd365c5f9f", kill_on_drop: false }`
[INFO] [stdout] 1e981abe6407f002e248b93f2f57ec9677cd6ef998f1cd7900bc8ecd365c5f9f