[INFO] fetching crate rjo 0.3.0...
[INFO] checking rjo-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rjo 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rjo 0.3.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rjo 0.3.0
[INFO] finished tweaking crates.io crate rjo 0.3.0
[INFO] tweaked toml for crates.io crate rjo 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rjo 0.3.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.120
[INFO] [stderr]   Downloaded onig v6.1.1
[INFO] [stderr]   Downloaded indexmap v1.5.2
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded bincode v1.3.1
[INFO] [stderr]   Downloaded plist v1.0.1
[INFO] [stderr]   Downloaded serde v1.0.120
[INFO] [stderr]   Downloaded libc v0.2.82
[INFO] [stderr]   Downloaded onig_sys v69.6.0
[INFO] [stderr]   Downloaded syntect v4.5.0
[INFO] [stderr]   Downloaded syn v1.0.59
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dae1afc3c5923b48acda7d3d71d9773b8abe423adbafc78fc35f2e2e7d1deed
[INFO] running `Command { std: "docker" "start" "-a" "6dae1afc3c5923b48acda7d3d71d9773b8abe423adbafc78fc35f2e2e7d1deed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dae1afc3c5923b48acda7d3d71d9773b8abe423adbafc78fc35f2e2e7d1deed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dae1afc3c5923b48acda7d3d71d9773b8abe423adbafc78fc35f2e2e7d1deed", kill_on_drop: false }`
[INFO] [stdout] 6dae1afc3c5923b48acda7d3d71d9773b8abe423adbafc78fc35f2e2e7d1deed
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e245244896cfc47648683fb756a5047dbe69a8e697b71b2569fb948297acba9a
[INFO] running `Command { std: "docker" "start" "-a" "e245244896cfc47648683fb756a5047dbe69a8e697b71b2569fb948297acba9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling onig_sys v69.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking plist v1.0.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking onig v6.1.1
[INFO] [stderr]     Checking syntect v4.5.0
[INFO] [stderr]     Checking rjo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "e245244896cfc47648683fb756a5047dbe69a8e697b71b2569fb948297acba9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e245244896cfc47648683fb756a5047dbe69a8e697b71b2569fb948297acba9a", kill_on_drop: false }`
[INFO] [stdout] e245244896cfc47648683fb756a5047dbe69a8e697b71b2569fb948297acba9a