[INFO] cloning repository https://github.com/rjyo/benchmarks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rjyo/benchmarks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Fbenchmarks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Fbenchmarks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39ee850a9bd457da0bb0563872706cbd8beac35c
[INFO] checking rjyo/benchmarks against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Fbenchmarks" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rjyo/benchmarks on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rjyo/benchmarks
[INFO] finished tweaking git repo https://github.com/rjyo/benchmarks
[INFO] tweaked toml for git repo https://github.com/rjyo/benchmarks written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rjyo/benchmarks 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmq-sys v0.11.0
[INFO] [stderr]   Downloaded nanomsg-sys v0.7.2
[INFO] [stderr]   Downloaded nanomsg v0.7.2
[INFO] [stderr]   Downloaded zmq v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2428b7f26448a95c2e07bc719446e1e8ff5fc7b46bea9798eaadfa61ba57495
[INFO] running `Command { std: "docker" "start" "-a" "d2428b7f26448a95c2e07bc719446e1e8ff5fc7b46bea9798eaadfa61ba57495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2428b7f26448a95c2e07bc719446e1e8ff5fc7b46bea9798eaadfa61ba57495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2428b7f26448a95c2e07bc719446e1e8ff5fc7b46bea9798eaadfa61ba57495", kill_on_drop: false }`
[INFO] [stdout] d2428b7f26448a95c2e07bc719446e1e8ff5fc7b46bea9798eaadfa61ba57495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05be62ab48079b48b120f2e6e022a9113d9c8414f7b71c76ea0770d00a1e9f9d
[INFO] running `Command { std: "docker" "start" "-a" "05be62ab48079b48b120f2e6e022a9113d9c8414f7b71c76ea0770d00a1e9f9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling nanomsg-sys v0.7.2
[INFO] [stderr]     Checking nanomsg v0.7.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 19 |     flag_client: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     flag_server: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     flag_version: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 22 |     arg_url: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     cmd_mq: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     cmd_nanomsg: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     cmd_zmq: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 19 |     flag_client: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     flag_server: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     flag_version: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 22 |     arg_url: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     cmd_mq: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     cmd_nanomsg: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     cmd_zmq: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.23s
[INFO] running `Command { std: "docker" "inspect" "05be62ab48079b48b120f2e6e022a9113d9c8414f7b71c76ea0770d00a1e9f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05be62ab48079b48b120f2e6e022a9113d9c8414f7b71c76ea0770d00a1e9f9d", kill_on_drop: false }`
[INFO] [stdout] 05be62ab48079b48b120f2e6e022a9113d9c8414f7b71c76ea0770d00a1e9f9d
[INFO] checking rjyo/benchmarks against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Fbenchmarks" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rjyo/benchmarks on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rjyo/benchmarks
[INFO] finished tweaking git repo https://github.com/rjyo/benchmarks
[INFO] tweaked toml for git repo https://github.com/rjyo/benchmarks written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rjyo/benchmarks 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb4e576226b806ba2e3331645d42eab12f4bdc4b8ff74b1403843670c4a801a0
[INFO] running `Command { std: "docker" "start" "-a" "eb4e576226b806ba2e3331645d42eab12f4bdc4b8ff74b1403843670c4a801a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb4e576226b806ba2e3331645d42eab12f4bdc4b8ff74b1403843670c4a801a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4e576226b806ba2e3331645d42eab12f4bdc4b8ff74b1403843670c4a801a0", kill_on_drop: false }`
[INFO] [stdout] eb4e576226b806ba2e3331645d42eab12f4bdc4b8ff74b1403843670c4a801a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aac8cf447004628541796b22459a229a182ee13822d15852f363fc692a28b284
[INFO] running `Command { std: "docker" "start" "-a" "aac8cf447004628541796b22459a229a182ee13822d15852f363fc692a28b284", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling nanomsg-sys v0.7.2
[INFO] [stderr]     Checking nanomsg v0.7.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 19 |     flag_client: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     flag_server: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     flag_version: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 22 |     arg_url: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     cmd_mq: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     cmd_nanomsg: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     cmd_zmq: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 19 |     flag_client: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     flag_server: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     flag_version: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 22 |     arg_url: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     cmd_mq: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     cmd_nanomsg: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     cmd_zmq: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.55s
[INFO] running `Command { std: "docker" "inspect" "aac8cf447004628541796b22459a229a182ee13822d15852f363fc692a28b284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac8cf447004628541796b22459a229a182ee13822d15852f363fc692a28b284", kill_on_drop: false }`
[INFO] [stdout] aac8cf447004628541796b22459a229a182ee13822d15852f363fc692a28b284