[INFO] fetching crate err-derive 0.2.4...
[INFO] checking err-derive-0.2.4 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate err-derive 0.2.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate err-derive 0.2.4 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate err-derive 0.2.4
[INFO] finished tweaking crates.io crate err-derive 0.2.4
[INFO] tweaked toml for crates.io crate err-derive 0.2.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate err-derive 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.1
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded proc-macro-error v1.0.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.33
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 779c43a2a4fc55f7fd4d1c04c16a6b985f938880e18f9d4f5b4076ddcdc99b92
[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" "779c43a2a4fc55f7fd4d1c04c16a6b985f938880e18f9d4f5b4076ddcdc99b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "779c43a2a4fc55f7fd4d1c04c16a6b985f938880e18f9d4f5b4076ddcdc99b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779c43a2a4fc55f7fd4d1c04c16a6b985f938880e18f9d4f5b4076ddcdc99b92", kill_on_drop: false }`
[INFO] [stdout] 779c43a2a4fc55f7fd4d1c04c16a6b985f938880e18f9d4f5b4076ddcdc99b92
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "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] 25910aee7f76ac5c910aa9567001212f38eacec82564877a5649e543536e00be
[INFO] running `Command { std: "docker" "start" "-a" "25910aee7f76ac5c910aa9567001212f38eacec82564877a5649e543536e00be", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking bytecount v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.33
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking proc-macro2 v1.0.9
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling err-derive v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cargo_metadata v0.6.4
[INFO] [stderr]     Checking skeptic v0.13.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.55s
[INFO] running `Command { std: "docker" "inspect" "25910aee7f76ac5c910aa9567001212f38eacec82564877a5649e543536e00be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25910aee7f76ac5c910aa9567001212f38eacec82564877a5649e543536e00be", kill_on_drop: false }`
[INFO] [stdout] 25910aee7f76ac5c910aa9567001212f38eacec82564877a5649e543536e00be