[INFO] fetching crate impostor_core 0.1.0...
[INFO] checking impostor_core-0.1.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate impostor_core 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate impostor_core 0.1.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate impostor_core 0.1.0
[INFO] finished tweaking crates.io crate impostor_core 0.1.0
[INFO] tweaked toml for crates.io crate impostor_core 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libxml v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5593e606b8b2eed791207d3d09fa09fccaeb57d1b5d34ea89960360a00447d92
[INFO] running `Command { std: "docker" "start" "-a" "5593e606b8b2eed791207d3d09fa09fccaeb57d1b5d34ea89960360a00447d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5593e606b8b2eed791207d3d09fa09fccaeb57d1b5d34ea89960360a00447d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5593e606b8b2eed791207d3d09fa09fccaeb57d1b5d34ea89960360a00447d92", kill_on_drop: false }`
[INFO] [stdout] 5593e606b8b2eed791207d3d09fa09fccaeb57d1b5d34ea89960360a00447d92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36dfb53d429a931215bd5a6dc67919ce69c5f9881c99524a658f458ed6a6a1cb
[INFO] running `Command { std: "docker" "start" "-a" "36dfb53d429a931215bd5a6dc67919ce69c5f9881c99524a658f458ed6a6a1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libxml v0.3.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking impostor_core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "36dfb53d429a931215bd5a6dc67919ce69c5f9881c99524a658f458ed6a6a1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dfb53d429a931215bd5a6dc67919ce69c5f9881c99524a658f458ed6a6a1cb", kill_on_drop: false }`
[INFO] [stdout] 36dfb53d429a931215bd5a6dc67919ce69c5f9881c99524a658f458ed6a6a1cb
[INFO] checking impostor_core-0.1.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate impostor_core 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate impostor_core 0.1.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate impostor_core 0.1.0
[INFO] finished tweaking crates.io crate impostor_core 0.1.0
[INFO] tweaked toml for crates.io crate impostor_core 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77c068317ca8ca9f5fed8bf8856f4cf1d6dd5cee929560c5df5626cf19b61529
[INFO] running `Command { std: "docker" "start" "-a" "77c068317ca8ca9f5fed8bf8856f4cf1d6dd5cee929560c5df5626cf19b61529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77c068317ca8ca9f5fed8bf8856f4cf1d6dd5cee929560c5df5626cf19b61529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c068317ca8ca9f5fed8bf8856f4cf1d6dd5cee929560c5df5626cf19b61529", kill_on_drop: false }`
[INFO] [stdout] 77c068317ca8ca9f5fed8bf8856f4cf1d6dd5cee929560c5df5626cf19b61529
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c4db7054464707fd0e10e9eddb3598f514bcc5595aca9af43bf396b1a68c9ae
[INFO] running `Command { std: "docker" "start" "-a" "3c4db7054464707fd0e10e9eddb3598f514bcc5595aca9af43bf396b1a68c9ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libxml v0.3.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking impostor_core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "3c4db7054464707fd0e10e9eddb3598f514bcc5595aca9af43bf396b1a68c9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c4db7054464707fd0e10e9eddb3598f514bcc5595aca9af43bf396b1a68c9ae", kill_on_drop: false }`
[INFO] [stdout] 3c4db7054464707fd0e10e9eddb3598f514bcc5595aca9af43bf396b1a68c9ae