[INFO] cloning repository https://github.com/sailfishos-mirror/rust-serial_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sailfishos-mirror/rust-serial_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsailfishos-mirror%2Frust-serial_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsailfishos-mirror%2Frust-serial_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4ba728f9f95abee3282d151203bce9e9c24c6b6
[INFO] checking sailfishos-mirror/rust-serial_test against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsailfishos-mirror%2Frust-serial_test" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sailfishos-mirror/rust-serial_test on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sailfishos-mirror/rust-serial_test
[INFO] finished tweaking git repo https://github.com/sailfishos-mirror/rust-serial_test
[INFO] tweaked toml for git repo https://github.com/sailfishos-mirror/rust-serial_test written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/sailfishos-mirror/rust-serial_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 21c4130071f3bb50b8b8cb19474899e3f42cd7a0a2fff2791716dcd5018bd2c1
[INFO] running `Command { std: "docker" "start" "-a" "21c4130071f3bb50b8b8cb19474899e3f42cd7a0a2fff2791716dcd5018bd2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c4130071f3bb50b8b8cb19474899e3f42cd7a0a2fff2791716dcd5018bd2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c4130071f3bb50b8b8cb19474899e3f42cd7a0a2fff2791716dcd5018bd2c1", kill_on_drop: false }`
[INFO] [stdout] 21c4130071f3bb50b8b8cb19474899e3f42cd7a0a2fff2791716dcd5018bd2c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a6231100401a6f595bf97374acc2a55a47caf14bb40ae52d161fffc1ea2dd39a
[INFO] running `Command { std: "docker" "start" "-a" "a6231100401a6f595bf97374acc2a55a47caf14bb40ae52d161fffc1ea2dd39a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking serial_test_test v0.5.1 (/opt/rustwide/workdir/serial_test_test)
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking serial_test_derive v0.5.1 (/opt/rustwide/workdir/serial_test_derive)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking serial_test v0.5.1 (/opt/rustwide/workdir/serial_test)
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.82s
[INFO] running `Command { std: "docker" "inspect" "a6231100401a6f595bf97374acc2a55a47caf14bb40ae52d161fffc1ea2dd39a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6231100401a6f595bf97374acc2a55a47caf14bb40ae52d161fffc1ea2dd39a", kill_on_drop: false }`
[INFO] [stdout] a6231100401a6f595bf97374acc2a55a47caf14bb40ae52d161fffc1ea2dd39a