[INFO] fetching crate imgui-ext 0.3.0...
[INFO] testing imgui-ext-0.3.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate imgui-ext 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate imgui-ext 0.3.0
[INFO] finished tweaking crates.io crate imgui-ext 0.3.0
[INFO] tweaked toml for crates.io crate imgui-ext 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate imgui-ext 0.3.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate imgui-ext 0.3.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unidiff v0.3.1
[INFO] [stderr]   Downloaded imgui-opengl-renderer v0.4.0
[INFO] [stderr]   Downloaded imgui-sdl2 v0.5.0
[INFO] [stderr]   Downloaded cmake v0.1.41
[INFO] [stderr]   Downloaded filetime v0.2.7
[INFO] [stderr]   Downloaded alga v0.9.1
[INFO] [stderr]   Downloaded lock_api v0.2.0
[INFO] [stderr]   Downloaded parking_lot v0.8.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.0
[INFO] [stderr]   Downloaded tar v0.4.26
[INFO] [stderr]   Downloaded parking_lot_core v0.5.0
[INFO] [stderr]   Downloaded quote v1.0.0
[INFO] [stderr]   Downloaded imgui-ext-derive v0.3.0
[INFO] [stderr]   Downloaded matrixmultiply v0.2.2
[INFO] [stderr]   Downloaded nalgebra v0.18.0
[INFO] [stderr]   Downloaded syn v1.0.1
[INFO] [stderr]   Downloaded sdl2 v0.32.2
[INFO] [stderr]   Downloaded sdl2-sys v0.32.6
[INFO] [stderr]   Downloaded imgui v0.0.22
[INFO] [stderr]   Downloaded imgui-sys v0.0.22
[INFO] [stderr]   Downloaded imgui-sys v0.1.0
[INFO] [stderr]   Downloaded imgui v0.1.0
[INFO] [stderr]   Downloaded gl_generator v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 933d4efe5570e2b2fe90536788572b838f08614ef54cb51bfdd57b7cb6cf9fe2
[INFO] running `Command { std: "docker" "start" "-a" "933d4efe5570e2b2fe90536788572b838f08614ef54cb51bfdd57b7cb6cf9fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "933d4efe5570e2b2fe90536788572b838f08614ef54cb51bfdd57b7cb6cf9fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933d4efe5570e2b2fe90536788572b838f08614ef54cb51bfdd57b7cb6cf9fe2", kill_on_drop: false }`
[INFO] [stdout] 933d4efe5570e2b2fe90536788572b838f08614ef54cb51bfdd57b7cb6cf9fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b8753135e8f89dbb65b9addb43638d3fcbfdfd78f6dca08e34c44073258df2a
[INFO] running `Command { std: "docker" "start" "-a" "2b8753135e8f89dbb65b9addb43638d3fcbfdfd78f6dca08e34c44073258df2a", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `libc v0.2.62`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `libc v0.2.62`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.62`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "2b8753135e8f89dbb65b9addb43638d3fcbfdfd78f6dca08e34c44073258df2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b8753135e8f89dbb65b9addb43638d3fcbfdfd78f6dca08e34c44073258df2a", kill_on_drop: false }`
[INFO] [stdout] 2b8753135e8f89dbb65b9addb43638d3fcbfdfd78f6dca08e34c44073258df2a