[INFO] updating cached repository https://github.com/umurgdk/jsg
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf8c8e9e523b23e2b874494bfe27757f102fe4ad
[INFO] checking umurgdk/jsg against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumurgdk%2Fjsg" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/umurgdk/jsg on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/umurgdk/jsg
[INFO] finished tweaking git repo https://github.com/umurgdk/jsg
[INFO] tweaked toml for git repo https://github.com/umurgdk/jsg written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/umurgdk/jsg already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9340b244ca6ece9a72ba644a1de49d22901d7b80697e62a233d2a4a484a7ce7a
[INFO] running `"docker" "start" "-a" "9340b244ca6ece9a72ba644a1de49d22901d7b80697e62a233d2a4a484a7ce7a"`
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.21
[INFO] [stderr]     Checking jsg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:63
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn do_array(as_str: bool, args: Skip<Args>) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:50
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn do_object(args: Skip<Args>) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:24
[INFO] [stderr]    |
[INFO] [stderr] 89 |             Into::<Box<Error>>::into(format!("parse json failed for \"{}\": {}", val_part, err))
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:51:63
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn do_array(as_str: bool, args: Skip<Args>) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:50
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn do_object(args: Skip<Args>) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:24
[INFO] [stderr]    |
[INFO] [stderr] 89 |             Into::<Box<Error>>::into(format!("parse json failed for \"{}\": {}", val_part, err))
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.62s
[INFO] running `"docker" "inspect" "9340b244ca6ece9a72ba644a1de49d22901d7b80697e62a233d2a4a484a7ce7a"`
[INFO] running `"docker" "rm" "-f" "9340b244ca6ece9a72ba644a1de49d22901d7b80697e62a233d2a4a484a7ce7a"`
[INFO] [stdout] 9340b244ca6ece9a72ba644a1de49d22901d7b80697e62a233d2a4a484a7ce7a