[INFO] fetching crate ruma-events 0.22.0-alpha.1...
[INFO] checking ruma-events-0.22.0-alpha.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate ruma-events 0.22.0-alpha.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ruma-events 0.22.0-alpha.1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruma-events 0.22.0-alpha.1
[INFO] finished tweaking crates.io crate ruma-events 0.22.0-alpha.1
[INFO] tweaked toml for crates.io crate ruma-events 0.22.0-alpha.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3ab8b9cc5ed06a2ec6e5120e0674b0d5137b3043aad30482fb2c6eaec53a910
[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" "a3ab8b9cc5ed06a2ec6e5120e0674b0d5137b3043aad30482fb2c6eaec53a910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3ab8b9cc5ed06a2ec6e5120e0674b0d5137b3043aad30482fb2c6eaec53a910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ab8b9cc5ed06a2ec6e5120e0674b0d5137b3043aad30482fb2c6eaec53a910", kill_on_drop: false }`
[INFO] [stdout] a3ab8b9cc5ed06a2ec6e5120e0674b0d5137b3043aad30482fb2c6eaec53a910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c62b5b93c3ca39988fcf8c609e1c857e3f7dd41dabb2cb1128390cc418d0453d
[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" "c62b5b93c3ca39988fcf8c609e1c857e3f7dd41dabb2cb1128390cc418d0453d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[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 getrandom v0.1.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling ruma-events-macros v0.22.0-alpha.1
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking js_int v0.1.9
[INFO] [stderr]     Checking ruma-identifiers-validation v0.1.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling ruma-identifiers-macros v0.17.4
[INFO] [stderr]     Checking ruma-serde v0.2.3
[INFO] [stderr]     Checking trybuild v1.0.33
[INFO] [stderr]     Checking ruma-common v0.2.0
[INFO] [stderr]     Checking ruma-identifiers v0.17.4
[INFO] [stderr]     Checking ruma-events v0.22.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "c62b5b93c3ca39988fcf8c609e1c857e3f7dd41dabb2cb1128390cc418d0453d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62b5b93c3ca39988fcf8c609e1c857e3f7dd41dabb2cb1128390cc418d0453d", kill_on_drop: false }`
[INFO] [stdout] c62b5b93c3ca39988fcf8c609e1c857e3f7dd41dabb2cb1128390cc418d0453d