[INFO] cloning repository https://github.com/uint/jtd-derive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uint/jtd-derive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b6aeb2e95ec991803606430ebff0adfdfd66d10
[INFO] checking uint/jtd-derive against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuint%2Fjtd-derive" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uint/jtd-derive 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 git repo https://github.com/uint/jtd-derive
[INFO] finished tweaking git repo https://github.com/uint/jtd-derive
[INFO] tweaked toml for git repo https://github.com/uint/jtd-derive written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/uint/jtd-derive 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]     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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive_internals v0.26.0
[INFO] [stderr]   Downloaded trybuild v1.0.89
[INFO] [stderr]   Downloaded basic-toml v0.1.8
[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] 3c7910f11e9a8e8225171e7cc733c7d4768e7f89cbf31105b21804e4ba286821
[INFO] running `Command { std: "docker" "start" "-a" "3c7910f11e9a8e8225171e7cc733c7d4768e7f89cbf31105b21804e4ba286821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c7910f11e9a8e8225171e7cc733c7d4768e7f89cbf31105b21804e4ba286821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7910f11e9a8e8225171e7cc733c7d4768e7f89cbf31105b21804e4ba286821", kill_on_drop: false }`
[INFO] [stdout] 3c7910f11e9a8e8225171e7cc733c7d4768e7f89cbf31105b21804e4ba286821
[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] f28ce10d4409161a3df44b62fb4f101b319832e009b6cfbdb48bc86e7753f7a3
[INFO] running `Command { std: "docker" "start" "-a" "f28ce10d4409161a3df44b62fb4f101b319832e009b6cfbdb48bc86e7753f7a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling trybuild v1.0.89
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking proc-macro-error v1.0.4
[INFO] [stderr]     Checking serde_derive_internals v0.26.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling jtd-derive-macros v0.1.4 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: field `no_serde` is never read
[INFO] [stdout]   --> macros/src/derive/context/container.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Container {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 12 |     pub no_serde: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `no_serde` is never read
[INFO] [stdout]   --> macros/src/derive/context/container.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Container {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 12 |     pub no_serde: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `no_serde` is never read
[INFO] [stdout]   --> macros/src/derive/context/container.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Container {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 12 |     pub no_serde: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking basic-toml v0.1.8
[INFO] [stderr]     Checking jtd-derive v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.02s
[INFO] running `Command { std: "docker" "inspect" "f28ce10d4409161a3df44b62fb4f101b319832e009b6cfbdb48bc86e7753f7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28ce10d4409161a3df44b62fb4f101b319832e009b6cfbdb48bc86e7753f7a3", kill_on_drop: false }`
[INFO] [stdout] f28ce10d4409161a3df44b62fb4f101b319832e009b6cfbdb48bc86e7753f7a3