[INFO] fetching crate flexstr 0.9.2...
[INFO] checking flexstr-0.9.2 against master#419b3e2d3e350822550eee0e82eeded4d324d584 for pr-135536
[INFO] extracting crate flexstr 0.9.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate flexstr 0.9.2 on toolchain 419b3e2d3e350822550eee0e82eeded4d324d584
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+419b3e2d3e350822550eee0e82eeded4d324d584" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexstr 0.9.2
[INFO] finished tweaking crates.io crate flexstr 0.9.2
[INFO] tweaked toml for crates.io crate flexstr 0.9.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+419b3e2d3e350822550eee0e82eeded4d324d584" "generate-lockfile" "--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]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding ufmt v0.1.2 (available: v0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+419b3e2d3e350822550eee0e82eeded4d324d584" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-macros v0.2.0
[INFO] [stderr]   Downloaded ufmt v0.1.2
[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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+419b3e2d3e350822550eee0e82eeded4d324d584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfd3d9761cc9b81b701967a064ab969216c972a02cccadef09edf2b67bb93bbb
[INFO] running `Command { std: "docker" "start" "-a" "cfd3d9761cc9b81b701967a064ab969216c972a02cccadef09edf2b67bb93bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfd3d9761cc9b81b701967a064ab969216c972a02cccadef09edf2b67bb93bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd3d9761cc9b81b701967a064ab969216c972a02cccadef09edf2b67bb93bbb", kill_on_drop: false }`
[INFO] [stdout] cfd3d9761cc9b81b701967a064ab969216c972a02cccadef09edf2b67bb93bbb
[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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+419b3e2d3e350822550eee0e82eeded4d324d584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dd75e15ed58a99f2fa67ba0810492e3c3428152685aa216824a19ecde0dda7a
[INFO] running `Command { std: "docker" "start" "-a" "7dd75e15ed58a99f2fa67ba0810492e3c3428152685aa216824a19ecde0dda7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking flexstr v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "7dd75e15ed58a99f2fa67ba0810492e3c3428152685aa216824a19ecde0dda7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd75e15ed58a99f2fa67ba0810492e3c3428152685aa216824a19ecde0dda7a", kill_on_drop: false }`
[INFO] [stdout] 7dd75e15ed58a99f2fa67ba0810492e3c3428152685aa216824a19ecde0dda7a