[INFO] fetching crate serde_repr 0.1.17...
[INFO] checking serde_repr-0.1.17 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate serde_repr 0.1.17 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate serde_repr 0.1.17 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_repr 0.1.17
[INFO] finished tweaking crates.io crate serde_repr 0.1.17
[INFO] tweaked toml for crates.io crate serde_repr 0.1.17 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.8.12
[INFO] [stderr]   Downloaded dissimilar v1.0.7
[INFO] [stderr]   Downloaded winnow v0.6.5
[INFO] [stderr]   Downloaded toml_edit v0.22.9
[INFO] [stderr]   Downloaded trybuild v1.0.91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a3cc71fd38d599146cc5c4f0dfaaa03a1d71b793a441f7c3ac77504fca8235a
[INFO] running `Command { std: "docker" "start" "-a" "1a3cc71fd38d599146cc5c4f0dfaaa03a1d71b793a441f7c3ac77504fca8235a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a3cc71fd38d599146cc5c4f0dfaaa03a1d71b793a441f7c3ac77504fca8235a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a3cc71fd38d599146cc5c4f0dfaaa03a1d71b793a441f7c3ac77504fca8235a", kill_on_drop: false }`
[INFO] [stdout] 1a3cc71fd38d599146cc5c4f0dfaaa03a1d71b793a441f7c3ac77504fca8235a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f2c6f241fa018f5561bfdb5c65ecd5b47ff811041fabeb6c05864a6c583aa0a
[INFO] running `Command { std: "docker" "start" "-a" "3f2c6f241fa018f5561bfdb5c65ecd5b47ff811041fabeb6c05864a6c583aa0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]    Compiling trybuild v1.0.91
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking syn v2.0.57
[INFO] [stderr]     Checking serde_repr v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking toml_edit v0.22.9
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking toml v0.8.12
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.36s
[INFO] running `Command { std: "docker" "inspect" "3f2c6f241fa018f5561bfdb5c65ecd5b47ff811041fabeb6c05864a6c583aa0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f2c6f241fa018f5561bfdb5c65ecd5b47ff811041fabeb6c05864a6c583aa0a", kill_on_drop: false }`
[INFO] [stdout] 3f2c6f241fa018f5561bfdb5c65ecd5b47ff811041fabeb6c05864a6c583aa0a