[INFO] fetching crate seagull 0.1.0...
[INFO] checking seagull-0.1.0 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] extracting crate seagull 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate seagull 0.1.0 on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seagull 0.1.0
[INFO] finished tweaking crates.io crate seagull 0.1.0
[INFO] tweaked toml for crates.io crate seagull 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate seagull 0.1.0 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" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded float-cmp v0.6.0
[INFO] [stderr]   Downloaded predicates v1.0.4
[INFO] [stderr]   Downloaded postgres v0.17.3
[INFO] [stderr]   Downloaded postgres-protocol v0.5.1
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded sha2 v0.8.1
[INFO] [stderr]   Downloaded anyhow v1.0.28
[INFO] [stderr]   Downloaded tokio-postgres v0.5.4
[INFO] [stderr]   Downloaded postgres-types v0.1.1
[INFO] [stderr]   Downloaded tokio v0.2.19
[INFO] [stderr]   Downloaded fsio v0.1.2
[INFO] [stderr]   Downloaded envmnt v0.8.2
[INFO] [stderr]   Downloaded base64 v0.12.0
[INFO] [stderr]   Downloaded rusty-hook v0.11.1
[INFO] [stderr]   Downloaded ci_info v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f9a9579ac4536a47aedf8f730ccdcaa03ea02c8228dff6526082f36e2b3d466
[INFO] running `Command { std: "docker" "start" "-a" "2f9a9579ac4536a47aedf8f730ccdcaa03ea02c8228dff6526082f36e2b3d466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9a9579ac4536a47aedf8f730ccdcaa03ea02c8228dff6526082f36e2b3d466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9a9579ac4536a47aedf8f730ccdcaa03ea02c8228dff6526082f36e2b3d466", kill_on_drop: false }`
[INFO] [stdout] 2f9a9579ac4536a47aedf8f730ccdcaa03ea02c8228dff6526082f36e2b3d466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6345d29e98a9bb24cdb54a2919a6a1619f79e48eae9a173ba6ae9e2ea883165
[INFO] running `Command { std: "docker" "start" "-a" "d6345d29e98a9bb24cdb54a2919a6a1619f79e48eae9a173ba6ae9e2ea883165", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking siphasher v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling fsio v0.1.2
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking tokio v0.2.19
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking envmnt v0.8.2
[INFO] [stderr]     Checking ci_info v0.10.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking postgres-protocol v0.5.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking postgres-types v0.1.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-postgres v0.5.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking postgres v0.17.3
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking seagull v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rusty-hook v0.11.1
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[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] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connection_string` is never read
[INFO] [stdout]   --> tests/utils.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TestDatabase {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 |     pub connection_string: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[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] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[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] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings 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 6.93s
[INFO] running `Command { std: "docker" "inspect" "d6345d29e98a9bb24cdb54a2919a6a1619f79e48eae9a173ba6ae9e2ea883165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6345d29e98a9bb24cdb54a2919a6a1619f79e48eae9a173ba6ae9e2ea883165", kill_on_drop: false }`
[INFO] [stdout] d6345d29e98a9bb24cdb54a2919a6a1619f79e48eae9a173ba6ae9e2ea883165