[INFO] fetching crate sugiura-hiromichi_mylibrary 1.1.3...
[INFO] building sugiura-hiromichi_mylibrary-1.1.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate sugiura-hiromichi_mylibrary 1.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sugiura-hiromichi_mylibrary 1.1.3 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sugiura-hiromichi_mylibrary 1.1.3
[INFO] finished tweaking crates.io crate sugiura-hiromichi_mylibrary 1.1.3
[INFO] tweaked toml for crates.io crate sugiura-hiromichi_mylibrary 1.1.3 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b218e4a43fadbd10565c0b2bb411dce553269dacc5a980f8edbbaa75a6fe83d
[INFO] running `Command { std: "docker" "start" "-a" "2b218e4a43fadbd10565c0b2bb411dce553269dacc5a980f8edbbaa75a6fe83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b218e4a43fadbd10565c0b2bb411dce553269dacc5a980f8edbbaa75a6fe83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b218e4a43fadbd10565c0b2bb411dce553269dacc5a980f8edbbaa75a6fe83d", kill_on_drop: false }`
[INFO] [stdout] 2b218e4a43fadbd10565c0b2bb411dce553269dacc5a980f8edbbaa75a6fe83d
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7187d4630969e4df2a6b1787ac6d5319186f50f92823cb28b8b3aa09a3687e4
[INFO] running `Command { std: "docker" "start" "-a" "a7187d4630969e4df2a6b1787ac6d5319186f50f92823cb28b8b3aa09a3687e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sugiura-hiromichi_mylibrary v1.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Size` is never used
[INFO] [stdout]  --> src/str.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Size {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyStr` is never constructed
[INFO] [stdout]   --> src/str.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct MyStr(String,);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyUsize` is never constructed
[INFO] [stdout]   --> src/str.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct MyUsize(usize,);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CustomMul` is never used
[INFO] [stdout]   --> src/str.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait CustomMul {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "a7187d4630969e4df2a6b1787ac6d5319186f50f92823cb28b8b3aa09a3687e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7187d4630969e4df2a6b1787ac6d5319186f50f92823cb28b8b3aa09a3687e4", kill_on_drop: false }`
[INFO] [stdout] a7187d4630969e4df2a6b1787ac6d5319186f50f92823cb28b8b3aa09a3687e4
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5774425b8cfd292770b156e95f4de34494e2c30104adf51b2c6993b9af0b973
[INFO] running `Command { std: "docker" "start" "-a" "f5774425b8cfd292770b156e95f4de34494e2c30104adf51b2c6993b9af0b973", kill_on_drop: false }`
[INFO] [stdout] warning: trait `Size` is never used
[INFO] [stdout]  --> src/str.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Size {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyStr` is never constructed
[INFO] [stdout]   --> src/str.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct MyStr(String,);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sugiura-hiromichi_mylibrary v1.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MyUsize` is never constructed
[INFO] [stdout]   --> src/str.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct MyUsize(usize,);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CustomMul` is never used
[INFO] [stdout]   --> src/str.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait CustomMul {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/macros.rs:63:6
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/macros.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn cin_tes() { let a = cin!(); }
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Size` is never used
[INFO] [stdout]  --> src/str.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Size {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyStr` is never constructed
[INFO] [stdout]   --> src/str.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct MyStr(String,);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyUsize` is never constructed
[INFO] [stdout]   --> src/str.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct MyUsize(usize,);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CustomMul` is never used
[INFO] [stdout]   --> src/str.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait CustomMul {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "f5774425b8cfd292770b156e95f4de34494e2c30104adf51b2c6993b9af0b973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5774425b8cfd292770b156e95f4de34494e2c30104adf51b2c6993b9af0b973", kill_on_drop: false }`
[INFO] [stdout] f5774425b8cfd292770b156e95f4de34494e2c30104adf51b2c6993b9af0b973