[INFO] fetching crate hangar 0.0.4...
[INFO] checking hangar-0.0.4 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate hangar 0.0.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hangar 0.0.4 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hangar 0.0.4
[INFO] finished tweaking crates.io crate hangar 0.0.4
[INFO] tweaked toml for crates.io crate hangar 0.0.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.1.2
[INFO] [stderr]   Downloaded cargo-shim v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b1da256aef2601e60212fa9fcdfbe5c9cb0b4be7e19b136d3402fb0dc773dc8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9b1da256aef2601e60212fa9fcdfbe5c9cb0b4be7e19b136d3402fb0dc773dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1da256aef2601e60212fa9fcdfbe5c9cb0b4be7e19b136d3402fb0dc773dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1da256aef2601e60212fa9fcdfbe5c9cb0b4be7e19b136d3402fb0dc773dc8", kill_on_drop: false }`
[INFO] [stdout] 9b1da256aef2601e60212fa9fcdfbe5c9cb0b4be7e19b136d3402fb0dc773dc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 92a3b4fc1df732f3e0a8338e7a8be9c9131639fad3cc6cce1a51bf7c89f001bb
[INFO] running `Command { std: "docker" "start" "-a" "92a3b4fc1df732f3e0a8338e7a8be9c9131639fad3cc6cce1a51bf7c89f001bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking cargo_metadata v0.1.2
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking cargo-shim v0.1.5
[INFO] [stderr]     Checking hangar v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |     context.add("database_url", &setting.db_url);
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |     context.add("authors_name_email", &setting.author);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |     context.add("cargo_db", cargo_db);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |     context.add("db_connection_long", db_connection_long);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |     context.add("db_connection_short", db_connection_short);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:36:54
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let result: Result<String, String> = if let Some(matches) = matches.subcommand_matches("build")
[INFO] [stdout]    |                                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |     } else if let Some(matches) = matches.subcommand_matches("db") {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:43:24
[INFO] [stdout]    |
[INFO] [stdout] 43 |     } else if let Some(matches) = matches.subcommand_matches("run") {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |     context.add("database_url", &setting.db_url);
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |     context.add("authors_name_email", &setting.author);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |     context.add("cargo_db", cargo_db);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |     context.add("db_connection_long", db_connection_long);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tera::Context::add`: Use `insert` instead to keep consistency with std collections
[INFO] [stdout]    --> src/generator/mod.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |     context.add("db_connection_short", db_connection_short);
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:36:54
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let result: Result<String, String> = if let Some(matches) = matches.subcommand_matches("build")
[INFO] [stdout]    |                                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |     } else if let Some(matches) = matches.subcommand_matches("db") {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:43:24
[INFO] [stdout]    |
[INFO] [stdout] 43 |     } else if let Some(matches) = matches.subcommand_matches("run") {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/generator/mod.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         tera.add_raw_template(var_template_name, var_template_value);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/generator/mod.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         tera.add_raw_template(var_template_name, var_template_value);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.07s
[INFO] running `Command { std: "docker" "inspect" "92a3b4fc1df732f3e0a8338e7a8be9c9131639fad3cc6cce1a51bf7c89f001bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a3b4fc1df732f3e0a8338e7a8be9c9131639fad3cc6cce1a51bf7c89f001bb", kill_on_drop: false }`
[INFO] [stdout] 92a3b4fc1df732f3e0a8338e7a8be9c9131639fad3cc6cce1a51bf7c89f001bb