[INFO] cloning repository https://github.com/crelke0/digit-classifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crelke0/digit-classifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrelke0%2Fdigit-classifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrelke0%2Fdigit-classifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea9b2c32051744cfcf0270aad3559328bf0b6761
[INFO] checking crelke0/digit-classifier/ea9b2c32051744cfcf0270aad3559328bf0b6761 against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrelke0%2Fdigit-classifier" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crelke0/digit-classifier on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crelke0/digit-classifier
[INFO] finished tweaking git repo https://github.com/crelke0/digit-classifier
[INFO] tweaked toml for git repo https://github.com/crelke0/digit-classifier written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/crelke0/digit-classifier 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f4e27a0b7398d0d6b9fb70eeb2f0efbe867b8c4318278e1b945e3494122dbd1
[INFO] running `Command { std: "docker" "start" "-a" "4f4e27a0b7398d0d6b9fb70eeb2f0efbe867b8c4318278e1b945e3494122dbd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f4e27a0b7398d0d6b9fb70eeb2f0efbe867b8c4318278e1b945e3494122dbd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4e27a0b7398d0d6b9fb70eeb2f0efbe867b8c4318278e1b945e3494122dbd1", kill_on_drop: false }`
[INFO] [stdout] 4f4e27a0b7398d0d6b9fb70eeb2f0efbe867b8c4318278e1b945e3494122dbd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 310d1d2b5d7b32ebe0205e66e0ed5eda216e410088c023135ed086b415f770fd
[INFO] running `Command { std: "docker" "start" "-a" "310d1d2b5d7b32ebe0205e66e0ed5eda216e410088c023135ed086b415f770fd", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling serde v1.0.166
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling erased-serde v0.3.27
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking mnist v0.5.0
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking png v0.17.9
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.166
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetagHEuD8/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_json` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "310d1d2b5d7b32ebe0205e66e0ed5eda216e410088c023135ed086b415f770fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310d1d2b5d7b32ebe0205e66e0ed5eda216e410088c023135ed086b415f770fd", kill_on_drop: false }`
[INFO] [stdout] 310d1d2b5d7b32ebe0205e66e0ed5eda216e410088c023135ed086b415f770fd