[INFO] crate arsert_impl 0.0.2 is already in cache
[INFO] checking arsert_impl-0.0.2 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate arsert_impl 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate arsert_impl 0.0.2 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arsert_impl 0.0.2
[INFO] finished tweaking crates.io crate arsert_impl 0.0.2
[INFO] tweaked toml for crates.io crate arsert_impl 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9ab65190ad0a29a3e505d7496095ef0f74b6055e545db99b2744a6854f1ab96
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c9ab65190ad0a29a3e505d7496095ef0f74b6055e545db99b2744a6854f1ab96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9ab65190ad0a29a3e505d7496095ef0f74b6055e545db99b2744a6854f1ab96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ab65190ad0a29a3e505d7496095ef0f74b6055e545db99b2744a6854f1ab96", kill_on_drop: false }`
[INFO] [stdout] c9ab65190ad0a29a3e505d7496095ef0f74b6055e545db99b2744a6854f1ab96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c43d68bb6e87811814c25d35659e4b2b85cbc832977232a559881ee2aa45284e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c43d68bb6e87811814c25d35659e4b2b85cbc832977232a559881ee2aa45284e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking arsert_failure v0.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking arsert_impl v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/lib.rs:7:68
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::{self, parenthesized, parse_macro_input, Attribute, Expr, ExprPath, Result, Token};
[INFO] [stdout]   |                                                                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/expressions.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{Expr, ExprPath, Result};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/binary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/simple.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/expressions/simple.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{Expr, ExprPath};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/unary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/lib.rs:7:68
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::{self, parenthesized, parse_macro_input, Attribute, Expr, ExprPath, Result, Token};
[INFO] [stdout]   |                                                                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/expressions.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{Expr, ExprPath, Result};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/binary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/simple.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExprPath`
[INFO] [stdout]  --> src/expressions/simple.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{Expr, ExprPath};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2`
[INFO] [stdout]  --> src/expressions/unary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use proc_macro2;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.32s
[INFO] running `Command { std: "docker" "inspect" "c43d68bb6e87811814c25d35659e4b2b85cbc832977232a559881ee2aa45284e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c43d68bb6e87811814c25d35659e4b2b85cbc832977232a559881ee2aa45284e", kill_on_drop: false }`
[INFO] [stdout] c43d68bb6e87811814c25d35659e4b2b85cbc832977232a559881ee2aa45284e