[INFO] cloning repository https://github.com/hawkw/rush
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawkw/rush" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Frush", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Frush'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e7a50f582507201372282b0bc07f51928c389a0
[INFO] testing hawkw/rush against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Frush" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hawkw/rush on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hawkw/rush
[INFO] finished tweaking git repo https://github.com/hawkw/rush
[INFO] tweaked toml for git repo https://github.com/hawkw/rush written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hawkw/rush already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36430806413f9c06d9be94109346e9535d15fc2545d5d6d4072f36ae791ed245
[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" "36430806413f9c06d9be94109346e9535d15fc2545d5d6d4072f36ae791ed245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36430806413f9c06d9be94109346e9535d15fc2545d5d6d4072f36ae791ed245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36430806413f9c06d9be94109346e9535d15fc2545d5d6d4072f36ae791ed245", kill_on_drop: false }`
[INFO] [stdout] 36430806413f9c06d9be94109346e9535d15fc2545d5d6d4072f36ae791ed245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b723d67aa313f1c5481f0ba82de9385cc28c201719f07bfe84e29597421db8f2
[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" "b723d67aa313f1c5481f0ba82de9385cc28c201719f07bfe84e29597421db8f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 65 | /         loop {
[INFO] [stdout] 66 | |            match self.next_command() {
[INFO] [stdout] 67 | |                Err(CommandError::Parse(e)) => println!("Parse error: {:?}", e),
[INFO] [stdout] 68 | |                Err(CommandError::Io(e)) => Err(e)?,
[INFO] [stdout] 69 | |                _ => {}
[INFO] [stdout] 70 | |            };
[INFO] [stdout] 71 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 72 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "b723d67aa313f1c5481f0ba82de9385cc28c201719f07bfe84e29597421db8f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b723d67aa313f1c5481f0ba82de9385cc28c201719f07bfe84e29597421db8f2", kill_on_drop: false }`
[INFO] [stdout] b723d67aa313f1c5481f0ba82de9385cc28c201719f07bfe84e29597421db8f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83c6a861de259ca7c3efe44c41c47020ebecf936795fd36ebdd77e4cc2103a8b
[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" "83c6a861de259ca7c3efe44c41c47020ebecf936795fd36ebdd77e4cc2103a8b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 65 | /         loop {
[INFO] [stdout] 66 | |            match self.next_command() {
[INFO] [stdout] 67 | |                Err(CommandError::Parse(e)) => println!("Parse error: {:?}", e),
[INFO] [stdout] 68 | |                Err(CommandError::Io(e)) => Err(e)?,
[INFO] [stdout] 69 | |                _ => {}
[INFO] [stdout] 70 | |            };
[INFO] [stdout] 71 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 72 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 65 | /         loop {
[INFO] [stdout] 66 | |            match self.next_command() {
[INFO] [stdout] 67 | |                Err(CommandError::Parse(e)) => println!("Parse error: {:?}", e),
[INFO] [stdout] 68 | |                Err(CommandError::Io(e)) => Err(e)?,
[INFO] [stdout] 69 | |                _ => {}
[INFO] [stdout] 70 | |            };
[INFO] [stdout] 71 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 72 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "83c6a861de259ca7c3efe44c41c47020ebecf936795fd36ebdd77e4cc2103a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c6a861de259ca7c3efe44c41c47020ebecf936795fd36ebdd77e4cc2103a8b", kill_on_drop: false }`
[INFO] [stdout] 83c6a861de259ca7c3efe44c41c47020ebecf936795fd36ebdd77e4cc2103a8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0614dbc4610b9f5c4b28612d649fd1a6b1bc2a365a1aabcfc7bcb56126bf589
[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" "e0614dbc4610b9f5c4b28612d649fd1a6b1bc2a365a1aabcfc7bcb56126bf589", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 65 | /         loop {
[INFO] [stderr] 66 | |            match self.next_command() {
[INFO] [stderr] 67 | |                Err(CommandError::Parse(e)) => println!("Parse error: {:?}", e),
[INFO] [stderr] 68 | |                Err(CommandError::Io(e)) => Err(e)?,
[INFO] [stderr] 69 | |                _ => {}
[INFO] [stderr] 70 | |            };
[INFO] [stderr] 71 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 72 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 65 | /         loop {
[INFO] [stderr] 66 | |            match self.next_command() {
[INFO] [stderr] 67 | |                Err(CommandError::Parse(e)) => println!("Parse error: {:?}", e),
[INFO] [stderr] 68 | |                Err(CommandError::Io(e)) => Err(e)?,
[INFO] [stderr] 69 | |                _ => {}
[INFO] [stderr] 70 | |            };
[INFO] [stderr] 71 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 72 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rush-d00701d95a09dc4e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rush-7dbe72f49efbc514)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rush
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0614dbc4610b9f5c4b28612d649fd1a6b1bc2a365a1aabcfc7bcb56126bf589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0614dbc4610b9f5c4b28612d649fd1a6b1bc2a365a1aabcfc7bcb56126bf589", kill_on_drop: false }`
[INFO] [stdout] e0614dbc4610b9f5c4b28612d649fd1a6b1bc2a365a1aabcfc7bcb56126bf589