[INFO] fetching crate mem 0.5.0...
[INFO] checking mem-0.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate mem 0.5.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mem 0.5.0 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 mem 0.5.0
[INFO] finished tweaking crates.io crate mem 0.5.0
[INFO] tweaked toml for crates.io crate mem 0.5.0 written to /workspace/builds/worker-0-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 14 packages
[INFO] [stderr]       Adding error-chain v0.10.0 (latest: v0.12.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7e8b7f7719bb23e68e39df77651911bea22137ad10254a3b99c9e94401fcc522
[INFO] running `Command { std: "docker" "start" "-a" "7e8b7f7719bb23e68e39df77651911bea22137ad10254a3b99c9e94401fcc522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e8b7f7719bb23e68e39df77651911bea22137ad10254a3b99c9e94401fcc522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8b7f7719bb23e68e39df77651911bea22137ad10254a3b99c9e94401fcc522", kill_on_drop: false }`
[INFO] [stdout] 7e8b7f7719bb23e68e39df77651911bea22137ad10254a3b99c9e94401fcc522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ff662f64a7ef2db5d90509b89bcc863d250b7d702232ea0791363774265d8bcb
[INFO] running `Command { std: "docker" "start" "-a" "ff662f64a7ef2db5d90509b89bcc863d250b7d702232ea0791363774265d8bcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking mem v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn set(&mut self, Addr, Byte) -> Result<(), Error>;
[INFO] [stdout]    |                       ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Addr`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn set(&mut self, Addr, Byte) -> Result<(), Error>;
[INFO] [stdout]    |                       ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Addr`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn set(&mut self, Addr, Byte) -> Result<(), Error>;
[INFO] [stdout]    |                             ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Byte`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn get(&self, Addr) -> Result<Byte, Error>;
[INFO] [stdout]    |                   ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Addr`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/interface.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn new(Box<M>) -> Self;
[INFO] [stdout]     |            ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Box<M>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn set(&mut self, Addr, Byte) -> Result<(), Error>;
[INFO] [stdout]    |                             ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Byte`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/interface.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn get(&self, Addr) -> Result<Byte, Error>;
[INFO] [stdout]    |                   ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Addr`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/interface.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn new(Box<M>) -> Self;
[INFO] [stdout]     |            ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Box<M>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.17s
[INFO] running `Command { std: "docker" "inspect" "ff662f64a7ef2db5d90509b89bcc863d250b7d702232ea0791363774265d8bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff662f64a7ef2db5d90509b89bcc863d250b7d702232ea0791363774265d8bcb", kill_on_drop: false }`
[INFO] [stdout] ff662f64a7ef2db5d90509b89bcc863d250b7d702232ea0791363774265d8bcb