[INFO] fetching crate wherror 2.3.1...
[INFO] checking wherror-2.3.1 against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] extracting crate wherror 2.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate wherror 2.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wherror 2.3.1
[INFO] tweaked toml for crates.io crate wherror 2.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wherror 2.3.1 on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wherror 2.3.1 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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded target-triple v0.1.4
[INFO] [stderr]   Downloaded toml v0.9.2
[INFO] [stderr]   Downloaded trybuild v1.0.106
[INFO] [stderr]   Downloaded wherror-impl v2.3.1
[INFO] [stderr]   Downloaded toml_parser v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55eb5edb7af05ca60f8b04a791d1d92dd5de52e6ee464c5745bc9dd678aa7905
[INFO] running `Command { std: "docker" "start" "-a" "55eb5edb7af05ca60f8b04a791d1d92dd5de52e6ee464c5745bc9dd678aa7905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55eb5edb7af05ca60f8b04a791d1d92dd5de52e6ee464c5745bc9dd678aa7905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55eb5edb7af05ca60f8b04a791d1d92dd5de52e6ee464c5745bc9dd678aa7905", kill_on_drop: false }`
[INFO] [stdout] 55eb5edb7af05ca60f8b04a791d1d92dd5de52e6ee464c5745bc9dd678aa7905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6429df9cc97e5f1f0f9f062847080b8e32328a9ed1e7dc7b68decabb20a4b5da
[INFO] running `Command { std: "docker" "start" "-a" "6429df9cc97e5f1f0f9f062847080b8e32328a9ed1e7dc7b68decabb20a4b5da", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]     Checking winnow v0.7.12
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling wherror v2.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml_writer v1.0.2
[INFO] [stderr]     Checking dissimilar v1.0.10
[INFO] [stderr]     Checking toml_parser v1.0.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling wherror-impl v2.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde_spanned v1.0.0
[INFO] [stderr]     Checking toml_datetime v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.141
[INFO] [stderr]     Checking toml v0.9.2
[INFO] [stderr]     Checking trybuild v1.0.106
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.24s
[INFO] running `Command { std: "docker" "inspect" "6429df9cc97e5f1f0f9f062847080b8e32328a9ed1e7dc7b68decabb20a4b5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6429df9cc97e5f1f0f9f062847080b8e32328a9ed1e7dc7b68decabb20a4b5da", kill_on_drop: false }`
[INFO] [stdout] 6429df9cc97e5f1f0f9f062847080b8e32328a9ed1e7dc7b68decabb20a4b5da