[INFO] fetching crate es_balk 0.1.0... [INFO] checking es_balk-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate es_balk 0.1.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate es_balk 0.1.0 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 crates.io crate es_balk 0.1.0 [INFO] finished tweaking crates.io crate es_balk 0.1.0 [INFO] tweaked toml for crates.io crate es_balk 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 127 packages [INFO] [stderr] Adding base64 v0.13.1 (latest: v0.22.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bytes v0.5.6 (latest: v1.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding foreign-types v0.3.2 (latest: v0.5.0) [INFO] [stderr] Adding foreign-types-shared v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding h2 v0.2.7 (latest: v0.4.4) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding http v0.2.12 (latest: v1.1.0) [INFO] [stderr] Adding http-body v0.3.1 (latest: v1.0.0) [INFO] [stderr] Adding httpdate v0.3.2 (latest: v1.0.3) [INFO] [stderr] Adding hyper v0.13.10 (latest: v1.2.0) [INFO] [stderr] Adding hyper-tls v0.4.3 (latest: v0.6.0) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding itoa v0.4.8 (latest: v1.0.11) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding mio v0.6.23 (latest: v0.8.11) [INFO] [stderr] Adding miow v0.2.2 (latest: v0.6.0) [INFO] [stderr] Adding pin-project-lite v0.1.12 (latest: v0.2.14) [INFO] [stderr] Adding reqwest v0.10.10 (latest: v0.12.3) [INFO] [stderr] Adding socket2 v0.3.19 (latest: v0.5.6) [INFO] [stderr] Adding tokio v0.2.25 (latest: v1.37.0) [INFO] [stderr] Adding tokio-util v0.3.1 (latest: v0.7.10) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [INFO] [stderr] Adding winreg v0.7.0 (latest: v0.52.0) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 863bc364d4ff62814cda908dd03557e9b363e92e4a748c7c50b5a542db630cd5 [INFO] running `Command { std: "docker" "start" "-a" "863bc364d4ff62814cda908dd03557e9b363e92e4a748c7c50b5a542db630cd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "863bc364d4ff62814cda908dd03557e9b363e92e4a748c7c50b5a542db630cd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "863bc364d4ff62814cda908dd03557e9b363e92e4a748c7c50b5a542db630cd5", kill_on_drop: false }` [INFO] [stdout] 863bc364d4ff62814cda908dd03557e9b363e92e4a748c7c50b5a542db630cd5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 26293942831e62d86e034f976e5d70e0fbe6af0846d786ec2576ed78e6656a2d [INFO] running `Command { std: "docker" "start" "-a" "26293942831e62d86e034f976e5d70e0fbe6af0846d786ec2576ed78e6656a2d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking httpdate v0.3.2 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking openssl-sys v0.9.102 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking openssl v0.10.64 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking h2 v0.2.7 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking native-tls v0.2.11 [INFO] [stderr] Checking tokio-tls v0.3.1 [INFO] [stderr] Checking hyper v0.13.10 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking hyper-tls v0.4.3 [INFO] [stderr] Checking reqwest v0.10.10 [INFO] [stderr] Checking es_balk v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | &self.items.push(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 150 | let _ = &self.items.push(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | &self.items.push(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 150 | let _ = &self.items.push(item); [INFO] [stdout] | +++++++ [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.74s [INFO] running `Command { std: "docker" "inspect" "26293942831e62d86e034f976e5d70e0fbe6af0846d786ec2576ed78e6656a2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26293942831e62d86e034f976e5d70e0fbe6af0846d786ec2576ed78e6656a2d", kill_on_drop: false }` [INFO] [stdout] 26293942831e62d86e034f976e5d70e0fbe6af0846d786ec2576ed78e6656a2d [INFO] checking es_balk-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate es_balk 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate es_balk 0.1.0 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 crates.io crate es_balk 0.1.0 [INFO] finished tweaking crates.io crate es_balk 0.1.0 [INFO] tweaked toml for crates.io crate es_balk 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d75705a8ada79ac547e32e145c5e1705fd8ea0b7fe988e1bbfc1a6b586d1a006 [INFO] running `Command { std: "docker" "start" "-a" "d75705a8ada79ac547e32e145c5e1705fd8ea0b7fe988e1bbfc1a6b586d1a006", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d75705a8ada79ac547e32e145c5e1705fd8ea0b7fe988e1bbfc1a6b586d1a006", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d75705a8ada79ac547e32e145c5e1705fd8ea0b7fe988e1bbfc1a6b586d1a006", kill_on_drop: false }` [INFO] [stdout] d75705a8ada79ac547e32e145c5e1705fd8ea0b7fe988e1bbfc1a6b586d1a006 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 70d97c63d0cf88ba82c45d8937c679ebef5ad7c21c96ce6d79620e1943a65a16 [INFO] running `Command { std: "docker" "start" "-a" "70d97c63d0cf88ba82c45d8937c679ebef5ad7c21c96ce6d79620e1943a65a16", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking httpdate v0.3.2 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking openssl-sys v0.9.102 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking openssl v0.10.64 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking h2 v0.2.7 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking native-tls v0.2.11 [INFO] [stderr] Checking tokio-tls v0.3.1 [INFO] [stderr] Checking hyper v0.13.10 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking hyper-tls v0.4.3 [INFO] [stderr] Checking reqwest v0.10.10 [INFO] [stderr] Checking es_balk v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | &self.items.push(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 150 | let _ = &self.items.push(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | &self.items.push(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 150 | let _ = &self.items.push(item); [INFO] [stdout] | +++++++ [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.53s [INFO] running `Command { std: "docker" "inspect" "70d97c63d0cf88ba82c45d8937c679ebef5ad7c21c96ce6d79620e1943a65a16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70d97c63d0cf88ba82c45d8937c679ebef5ad7c21c96ce6d79620e1943a65a16", kill_on_drop: false }` [INFO] [stdout] 70d97c63d0cf88ba82c45d8937c679ebef5ad7c21c96ce6d79620e1943a65a16