[INFO] fetching crate dynfmt 0.1.4...
[INFO] checking dynfmt-0.1.4 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate dynfmt 0.1.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dynfmt 0.1.4 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynfmt 0.1.4
[INFO] finished tweaking crates.io crate dynfmt 0.1.4
[INFO] tweaked toml for crates.io crate dynfmt 0.1.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded rustc_version v0.2.3
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded erased-serde v0.3.12
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded regex v1.4.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.21
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded synstructure v0.10.2
[INFO] [stderr]   Downloaded serde_json v1.0.60
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded derive-enum-error v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e041bbddb342585b2ccbb5695752789fa756b3ff19f6e6439c43cb7c5224ac68
[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" "e041bbddb342585b2ccbb5695752789fa756b3ff19f6e6439c43cb7c5224ac68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e041bbddb342585b2ccbb5695752789fa756b3ff19f6e6439c43cb7c5224ac68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e041bbddb342585b2ccbb5695752789fa756b3ff19f6e6439c43cb7c5224ac68", kill_on_drop: false }`
[INFO] [stdout] e041bbddb342585b2ccbb5695752789fa756b3ff19f6e6439c43cb7c5224ac68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d73dfab03cfc78688071846f5f2f02d4bf7146f6856ed5e77b3a6023ce817048
[INFO] running `Command { std: "docker" "start" "-a" "d73dfab03cfc78688071846f5f2f02d4bf7146f6856ed5e77b3a6023ce817048", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling derive-enum-error v0.0.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking dynfmt v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.25s
[INFO] running `Command { std: "docker" "inspect" "d73dfab03cfc78688071846f5f2f02d4bf7146f6856ed5e77b3a6023ce817048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73dfab03cfc78688071846f5f2f02d4bf7146f6856ed5e77b3a6023ce817048", kill_on_drop: false }`
[INFO] [stdout] d73dfab03cfc78688071846f5f2f02d4bf7146f6856ed5e77b3a6023ce817048