[INFO] fetching crate callback-result 0.1.3...
[INFO] checking callback-result-0.1.3 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate callback-result 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate callback-result 0.1.3 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate callback-result 0.1.3
[INFO] finished tweaking crates.io crate callback-result 0.1.3
[INFO] tweaked toml for crates.io crate callback-result 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.3.1)
[INFO] [stderr]       Adding event-listener v2.5.3 (available: v5.3.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gloo-timers v0.3.0
[INFO] [stderr]   Downloaded notify-future v0.1.4
[INFO] [stderr]   Downloaded async-std v1.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ac21ed4078a2675a46bbc4d22bbb93cf6da8c1ac61e9ea67062dd827ad75faa
[INFO] running `Command { std: "docker" "start" "-a" "5ac21ed4078a2675a46bbc4d22bbb93cf6da8c1ac61e9ea67062dd827ad75faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ac21ed4078a2675a46bbc4d22bbb93cf6da8c1ac61e9ea67062dd827ad75faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac21ed4078a2675a46bbc4d22bbb93cf6da8c1ac61e9ea67062dd827ad75faa", kill_on_drop: false }`
[INFO] [stdout] 5ac21ed4078a2675a46bbc4d22bbb93cf6da8c1ac61e9ea67062dd827ad75faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d39be77b4eca649d3b1d3b34cb7cf164189af1c29832d1ff6c8aa9be4147c9
[INFO] running `Command { std: "docker" "start" "-a" "a4d39be77b4eca649d3b1d3b34cb7cf164189af1c29832d1ff6c8aa9be4147c9", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking value-bag v1.9.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking notify-future v0.1.4
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking event-listener v5.3.1
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]     Checking async-executor v1.13.1
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking polling v3.7.3
[INFO] [stderr]     Checking async-io v2.3.4
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.13.0
[INFO] [stderr]     Checking callback-result v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.78s
[INFO] running `Command { std: "docker" "inspect" "a4d39be77b4eca649d3b1d3b34cb7cf164189af1c29832d1ff6c8aa9be4147c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d39be77b4eca649d3b1d3b34cb7cf164189af1c29832d1ff6c8aa9be4147c9", kill_on_drop: false }`
[INFO] [stdout] a4d39be77b4eca649d3b1d3b34cb7cf164189af1c29832d1ff6c8aa9be4147c9