[INFO] cloning repository https://github.com/byo-os/byo-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/byo-os/byo-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbyo-os%2Fbyo-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbyo-os%2Fbyo-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a690394b45a0af3e11a124f71888a4787fb0aab9
[INFO] checking byo-os/byo-os against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbyo-os%2Fbyo-os" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/byo-os/byo-os on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/byo-os/byo-os
[INFO] finished tweaking git repo https://github.com/byo-os/byo-os
[INFO] tweaked toml for git repo https://github.com/byo-os/byo-os written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/byo-os/byo-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking byo-os/byo-os against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbyo-os%2Fbyo-os" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/byo-os/byo-os on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/byo-os/byo-os
[INFO] finished tweaking git repo https://github.com/byo-os/byo-os
[INFO] tweaked toml for git repo https://github.com/byo-os/byo-os written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/byo-os/byo-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12d5b2e6a5ff786fc1cf7bbf6a257d47c444356c943b7804de40ba925ae305d1
[INFO] running `Command { std: "docker" "start" "-a" "12d5b2e6a5ff786fc1cf7bbf6a257d47c444356c943b7804de40ba925ae305d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12d5b2e6a5ff786fc1cf7bbf6a257d47c444356c943b7804de40ba925ae305d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d5b2e6a5ff786fc1cf7bbf6a257d47c444356c943b7804de40ba925ae305d1", kill_on_drop: false }`
[INFO] [stdout] 12d5b2e6a5ff786fc1cf7bbf6a257d47c444356c943b7804de40ba925ae305d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bf42d782594fbdd0db59539962c70ffcbab231411da3f8597a960cccf391278
[INFO] running `Command { std: "docker" "start" "-a" "7bf42d782594fbdd0db59539962c70ffcbab231411da3f8597a960cccf391278", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking event-listener v5.0.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling interprocess v1.2.1
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking spinning v0.1.0
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking to_method v1.1.0
[INFO] [stderr]     Checking intmap v0.7.1
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking byo_ipc v0.1.0 (/opt/rustwide/workdir/crates/byo_ipc)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "7bf42d782594fbdd0db59539962c70ffcbab231411da3f8597a960cccf391278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf42d782594fbdd0db59539962c70ffcbab231411da3f8597a960cccf391278", kill_on_drop: false }`
[INFO] [stdout] 7bf42d782594fbdd0db59539962c70ffcbab231411da3f8597a960cccf391278