[INFO] cloning repository https://github.com/jmaygarden/slip-codec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmaygarden/slip-codec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmaygarden%2Fslip-codec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmaygarden%2Fslip-codec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 538455a1c36f4bd5c54cf0d6cd1490b3ef31d11e
[INFO] checking jmaygarden/slip-codec against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmaygarden%2Fslip-codec" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmaygarden/slip-codec on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmaygarden/slip-codec
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/jmaygarden/slip-codec
[INFO] tweaked toml for git repo https://github.com/jmaygarden/slip-codec written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jmaygarden/slip-codec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.0.0
[INFO] [stderr]   Downloaded futures-task v0.3.9
[INFO] [stderr]   Downloaded bytes v1.0.0
[INFO] [stderr]   Downloaded tokio-stream v0.1.1
[INFO] [stderr]   Downloaded serialport v4.0.0
[INFO] [stderr]   Downloaded tokio v1.0.1
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded futures-io v0.3.9
[INFO] [stderr]   Downloaded tokio-util v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b38f0f2f5bb7472c2004dd1fdb0d059afde7e58c91ba558d07659bfc8badc518
[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" "b38f0f2f5bb7472c2004dd1fdb0d059afde7e58c91ba558d07659bfc8badc518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b38f0f2f5bb7472c2004dd1fdb0d059afde7e58c91ba558d07659bfc8badc518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38f0f2f5bb7472c2004dd1fdb0d059afde7e58c91ba558d07659bfc8badc518", kill_on_drop: false }`
[INFO] [stdout] b38f0f2f5bb7472c2004dd1fdb0d059afde7e58c91ba558d07659bfc8badc518
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3ccaea2a24d48cdec40dfaf18cbc21d972be7d5988fd3b39a4126f01ddb325f
[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" "e3ccaea2a24d48cdec40dfaf18cbc21d972be7d5988fd3b39a4126f01ddb325f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking slip-codec v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking futures-task v0.3.9
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking serialport v4.0.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.79s
[INFO] running `Command { std: "docker" "inspect" "e3ccaea2a24d48cdec40dfaf18cbc21d972be7d5988fd3b39a4126f01ddb325f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3ccaea2a24d48cdec40dfaf18cbc21d972be7d5988fd3b39a4126f01ddb325f", kill_on_drop: false }`
[INFO] [stdout] e3ccaea2a24d48cdec40dfaf18cbc21d972be7d5988fd3b39a4126f01ddb325f