[INFO] cloning repository https://github.com/xomvio/om_json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xomvio/om_json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxomvio%2Fom_json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxomvio%2Fom_json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9e2cfab2fa025f28d699a98e0aca074bf72dcf3
[INFO] building xomvio/om_json against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxomvio%2Fom_json" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xomvio/om_json on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xomvio/om_json
[INFO] finished tweaking git repo https://github.com/xomvio/om_json
[INFO] tweaked toml for git repo https://github.com/xomvio/om_json written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xomvio/om_json 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cff38b6c11be5a2ab107768f8f1655bd728baf780e921990f1591c5ff84ada0
[INFO] running `Command { std: "docker" "start" "-a" "4cff38b6c11be5a2ab107768f8f1655bd728baf780e921990f1591c5ff84ada0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cff38b6c11be5a2ab107768f8f1655bd728baf780e921990f1591c5ff84ada0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cff38b6c11be5a2ab107768f8f1655bd728baf780e921990f1591c5ff84ada0", kill_on_drop: false }`
[INFO] [stdout] 4cff38b6c11be5a2ab107768f8f1655bd728baf780e921990f1591c5ff84ada0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6695c64a1eb5ecc4c0a5dd0314256c72123cd6e7b4d5a4708a53f4f4e7eaf9f0
[INFO] running `Command { std: "docker" "start" "-a" "6695c64a1eb5ecc4c0a5dd0314256c72123cd6e7b4d5a4708a53f4f4e7eaf9f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling xom_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::common::JArray`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::common::JArray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Val`, `to_jarray`, and `to_jobject`
[INFO] [stdout]  --> src/tests.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::{Val,to_jobject,to_jarray};
[INFO] [stdout]   |             ^^^ ^^^^^^^^^^ ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/tests.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Player {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Weapon` is never constructed
[INFO] [stdout]   --> src/tests.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Weapon {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "6695c64a1eb5ecc4c0a5dd0314256c72123cd6e7b4d5a4708a53f4f4e7eaf9f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6695c64a1eb5ecc4c0a5dd0314256c72123cd6e7b4d5a4708a53f4f4e7eaf9f0", kill_on_drop: false }`
[INFO] [stdout] 6695c64a1eb5ecc4c0a5dd0314256c72123cd6e7b4d5a4708a53f4f4e7eaf9f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72b6e99f7403907d96511786f772e857d2c85d7bde6514e404850ccd6266eb1a
[INFO] running `Command { std: "docker" "start" "-a" "72b6e99f7403907d96511786f772e857d2c85d7bde6514e404850ccd6266eb1a", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::common::JArray`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::common::JArray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Val`, `to_jarray`, and `to_jobject`
[INFO] [stdout]  --> src/tests.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::{Val,to_jobject,to_jarray};
[INFO] [stdout]   |             ^^^ ^^^^^^^^^^ ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod tests;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/tests.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Player {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Weapon` is never constructed
[INFO] [stdout]   --> src/tests.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Weapon {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xom_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::common::JArray`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::common::JArray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `to_jarray`
[INFO] [stdout]  --> src/tests.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::{Val,to_jobject,to_jarray};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "72b6e99f7403907d96511786f772e857d2c85d7bde6514e404850ccd6266eb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b6e99f7403907d96511786f772e857d2c85d7bde6514e404850ccd6266eb1a", kill_on_drop: false }`
[INFO] [stdout] 72b6e99f7403907d96511786f772e857d2c85d7bde6514e404850ccd6266eb1a