[INFO] fetching crate bibtex 0.0.1...
[INFO] checking bibtex-0.0.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bibtex 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate bibtex 0.0.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bibtex 0.0.1
[INFO] finished tweaking crates.io crate bibtex 0.0.1
[INFO] tweaked toml for crates.io crate bibtex 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c67d73bcc00caa4c84d37f5e29147e53f3974150b8450044f73bde7ad833efa8
[INFO] running `Command { std: "docker" "start" "-a" "c67d73bcc00caa4c84d37f5e29147e53f3974150b8450044f73bde7ad833efa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c67d73bcc00caa4c84d37f5e29147e53f3974150b8450044f73bde7ad833efa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67d73bcc00caa4c84d37f5e29147e53f3974150b8450044f73bde7ad833efa8", kill_on_drop: false }`
[INFO] [stdout] c67d73bcc00caa4c84d37f5e29147e53f3974150b8450044f73bde7ad833efa8
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97934a8e7f0104c780c792b96c703a210682a76e941f9b98f00df3d573bd3a8e
[INFO] running `Command { std: "docker" "start" "-a" "97934a8e7f0104c780c792b96c703a210682a76e941f9b98f00df3d573bd3a8e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Checking bibtex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `cite_key`, `entry_type`, and `field` are never used
[INFO] [stdout]   --> src/entry.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Entry<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn cite_key(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn entry_type(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn field(&self, field: &str) -> &str {
[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]   --> src/entry.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         &self.sort();
[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] 30 |         let _ = &self.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &self.fields.sort();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let _ = &self.fields.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `cite_key`, `entry_type`, and `field` are never used
[INFO] [stdout]   --> src/entry.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Entry<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn cite_key(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn entry_type(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn field(&self, field: &str) -> &str {
[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]   --> src/entry.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         &self.sort();
[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] 30 |         let _ = &self.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &self.fields.sort();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let _ = &self.fields.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "97934a8e7f0104c780c792b96c703a210682a76e941f9b98f00df3d573bd3a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97934a8e7f0104c780c792b96c703a210682a76e941f9b98f00df3d573bd3a8e", kill_on_drop: false }`
[INFO] [stdout] 97934a8e7f0104c780c792b96c703a210682a76e941f9b98f00df3d573bd3a8e
[INFO] checking bibtex-0.0.1 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate bibtex 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate bibtex 0.0.1 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bibtex 0.0.1
[INFO] finished tweaking crates.io crate bibtex 0.0.1
[INFO] tweaked toml for crates.io crate bibtex 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69274e269193c6a427f53aa9b52c26496c18ac1bd343e9ceae774918382c597d
[INFO] running `Command { std: "docker" "start" "-a" "69274e269193c6a427f53aa9b52c26496c18ac1bd343e9ceae774918382c597d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69274e269193c6a427f53aa9b52c26496c18ac1bd343e9ceae774918382c597d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69274e269193c6a427f53aa9b52c26496c18ac1bd343e9ceae774918382c597d", kill_on_drop: false }`
[INFO] [stdout] 69274e269193c6a427f53aa9b52c26496c18ac1bd343e9ceae774918382c597d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba5c80ade579976127f314b128e7c913cdbd40c52f520ae70e610b182344fd64
[INFO] running `Command { std: "docker" "start" "-a" "ba5c80ade579976127f314b128e7c913cdbd40c52f520ae70e610b182344fd64", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Checking bibtex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `cite_key`, `entry_type`, and `field` are never used
[INFO] [stdout]   --> src/entry.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Entry<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn cite_key(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn entry_type(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn field(&self, field: &str) -> &str {
[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]   --> src/entry.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         &self.sort();
[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] 30 |         let _ = &self.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &self.fields.sort();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let _ = &self.fields.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `cite_key`, `entry_type`, and `field` are never used
[INFO] [stdout]   --> src/entry.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Entry<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn cite_key(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn entry_type(&self) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn field(&self, field: &str) -> &str {
[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]   --> src/entry.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         &self.sort();
[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] 30 |         let _ = &self.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         &self.fields.sort();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let _ = &self.fields.sort();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "ba5c80ade579976127f314b128e7c913cdbd40c52f520ae70e610b182344fd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba5c80ade579976127f314b128e7c913cdbd40c52f520ae70e610b182344fd64", kill_on_drop: false }`
[INFO] [stdout] ba5c80ade579976127f314b128e7c913cdbd40c52f520ae70e610b182344fd64
