[INFO] cloning repository https://github.com/nojima/fridge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nojima/fridge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnojima%2Ffridge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnojima%2Ffridge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d07b1d0dd6fc38a9a94c51d9e35c7d636b634c0
[INFO] checking nojima/fridge against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnojima%2Ffridge" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nojima/fridge on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nojima/fridge
[INFO] finished tweaking git repo https://github.com/nojima/fridge
[INFO] tweaked toml for git repo https://github.com/nojima/fridge written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nojima/fridge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00168e068af19d99c2db7bd3eac688fd79cb732344d69f3c244c4ff5ec49beee
[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" "00168e068af19d99c2db7bd3eac688fd79cb732344d69f3c244c4ff5ec49beee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00168e068af19d99c2db7bd3eac688fd79cb732344d69f3c244c4ff5ec49beee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00168e068af19d99c2db7bd3eac688fd79cb732344d69f3c244c4ff5ec49beee", kill_on_drop: false }`
[INFO] [stdout] 00168e068af19d99c2db7bd3eac688fd79cb732344d69f3c244c4ff5ec49beee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa9d040ab4aab99e4454b6799913c670a822cc13e0039170f8f1d5f76193c183
[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" "fa9d040ab4aab99e4454b6799913c670a822cc13e0039170f8f1d5f76193c183", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling protobuf v2.0.4
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling ryu v0.2.5
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking termcolor v1.0.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling protoc v2.0.4
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.17
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.75
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling protobuf-codegen v2.0.4
[INFO] [stderr]    Compiling protoc-rust v2.0.4
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]    Compiling fridge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> build.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main() -> Result<(), Box<Error>> {
[INFO] [stdout]   |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `fridge v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/fridge-3ef44dd5705a6e91/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] running `Command { std: "docker" "inspect" "fa9d040ab4aab99e4454b6799913c670a822cc13e0039170f8f1d5f76193c183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9d040ab4aab99e4454b6799913c670a822cc13e0039170f8f1d5f76193c183", kill_on_drop: false }`
[INFO] [stdout] fa9d040ab4aab99e4454b6799913c670a822cc13e0039170f8f1d5f76193c183