[INFO] cloning repository https://github.com/su225/rust-async-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/su225/rust-async-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu225%2Frust-async-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu225%2Frust-async-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98843146cd4a28b4418443c22b83e9f3beaca8c0
[INFO] testing su225/rust-async-workshop against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsu225%2Frust-async-workshop" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/su225/rust-async-workshop on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/su225/rust-async-workshop
[INFO] finished tweaking git repo https://github.com/su225/rust-async-workshop
[INFO] tweaked toml for git repo https://github.com/su225/rust-async-workshop written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/su225/rust-async-workshop 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/tokio-rs/tracing`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded tracing-attributes v0.1.3
[INFO] [stderr]   Downloaded tracing-log v0.1.0
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded tokio-macros v0.2.0-alpha.5
[INFO] [stderr]   Downloaded tracing-subscriber v0.1.3
[INFO] [stderr]   Downloaded tokio-executor v0.2.0-alpha.5
[INFO] [stderr]   Downloaded structopt-derive v0.3.2
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded tokio-io v0.2.0-alpha.5
[INFO] [stderr]   Downloaded tokio-net v0.2.0-alpha.5
[INFO] [stderr]   Downloaded tokio-sync v0.2.0-alpha.5
[INFO] [stderr]   Downloaded structopt v0.3.2
[INFO] [stderr]   Downloaded tokio-codec v0.2.0-alpha.5
[INFO] [stderr]   Downloaded pin-project v0.4.0-alpha.11
[INFO] [stderr]   Downloaded tokio-timer v0.3.0-alpha.5
[INFO] [stderr]   Downloaded tokio v0.2.0-alpha.5
[INFO] [stderr]   Downloaded tokio-fs v0.2.0-alpha.5
[INFO] [stderr]   Downloaded pin-project-internal v0.4.0-alpha.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa43d1c4f0d8e3612415d1c10c1c023a541ddbb01413422cc6e8e445a9a39555
[INFO] running `Command { std: "docker" "start" "-a" "aa43d1c4f0d8e3612415d1c10c1c023a541ddbb01413422cc6e8e445a9a39555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa43d1c4f0d8e3612415d1c10c1c023a541ddbb01413422cc6e8e445a9a39555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa43d1c4f0d8e3612415d1c10c1c023a541ddbb01413422cc6e8e445a9a39555", kill_on_drop: false }`
[INFO] [stdout] aa43d1c4f0d8e3612415d1c10c1c023a541ddbb01413422cc6e8e445a9a39555
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 025f19eda179c41dd71957b389b4784e53e8a4ad66af697e01f05ad5840d32ce
[INFO] running `Command { std: "docker" "start" "-a" "025f19eda179c41dd71957b389b4784e53e8a4ad66af697e01f05ad5840d32ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/tmp/rustc494YTI"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crossbeam-epoch` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/bin/rustc --crate-name crossbeam_epoch --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-epoch-0.7.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="lazy_static"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "lazy_static", "nightly", "sanitize", "std"))' -C metadata=18cac2141a4790a3 -C extra-filename=-df8f5b1a449bbecd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-02675be8ce4d5b9f.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-20e4ba4f697c33fe.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-d46d696cbd7b1b63.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-695bc0f4418864cd.rmeta --extern memoffset=/opt/rustwide/target/debug/deps/libmemoffset-287c10baa1147c75.rmeta --extern scopeguard=/opt/rustwide/target/debug/deps/libscopeguard-f56127f537038ddd.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rand_hc` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/bin/rustc --crate-name rand_hc --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_hc-0.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=c53974adb8bc820a -C extra-filename=-8c6bc8b58dca19e2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-a81fe7808f612aa2.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `net2` (lib) due to 1 previous error
[INFO] [stderr] error: could not compile `rand_jitter` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/bin/rustc --crate-name rand_jitter --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_jitter-0.1.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("log", "std"))' -C metadata=f22ee871d39d098a -C extra-filename=-7a2811bedef919f4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-071c4ecd390d5ba3.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stdout] error: error writing dependencies to `/opt/rustwide/target/debug/deps/mio-e4073e544b303e92.d`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mio` (lib) due to 1 previous error
[INFO] [stdout] error: error writing dependencies to `/opt/rustwide/target/debug/deps/futures_util-a81e54be91461016.d`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-util-preview` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "025f19eda179c41dd71957b389b4784e53e8a4ad66af697e01f05ad5840d32ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025f19eda179c41dd71957b389b4784e53e8a4ad66af697e01f05ad5840d32ce", kill_on_drop: false }`
[INFO] [stdout] 025f19eda179c41dd71957b389b4784e53e8a4ad66af697e01f05ad5840d32ce