[INFO] cloning repository https://github.com/ypkulkar/infix_to_postfix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ypkulkar/infix_to_postfix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fypkulkar%2Finfix_to_postfix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fypkulkar%2Finfix_to_postfix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8182f88e20c8d721cef222f0bb8abe55b63614e1
[INFO] testing ypkulkar/infix_to_postfix against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fypkulkar%2Finfix_to_postfix" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ypkulkar/infix_to_postfix on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ypkulkar/infix_to_postfix
[INFO] finished tweaking git repo https://github.com/ypkulkar/infix_to_postfix
[INFO] tweaked toml for git repo https://github.com/ypkulkar/infix_to_postfix written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ypkulkar/infix_to_postfix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22ca5b574d11c3bb7134c8dce8a12249170b7c6ae7851a1281dc630653eed0d1
[INFO] running `Command { std: "docker" "start" "-a" "22ca5b574d11c3bb7134c8dce8a12249170b7c6ae7851a1281dc630653eed0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22ca5b574d11c3bb7134c8dce8a12249170b7c6ae7851a1281dc630653eed0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ca5b574d11c3bb7134c8dce8a12249170b7c6ae7851a1281dc630653eed0d1", kill_on_drop: false }`
[INFO] [stdout] 22ca5b574d11c3bb7134c8dce8a12249170b7c6ae7851a1281dc630653eed0d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21643f27b6bb03178f60be8441e1d8d43027a78bcf428de638bb0b497971c31d
[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" "21643f27b6bb03178f60be8441e1d8d43027a78bcf428de638bb0b497971c31d", kill_on_drop: false }`
[INFO] [stderr]    Compiling your v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:134:28
[INFO] [stdout]     |
[INFO] [stdout] 134 |                &InfixToken::Operand(x) => {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:140:29
[INFO] [stdout]     |
[INFO] [stdout] 140 |                &InfixToken::Operator(x) => {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:172:31
[INFO] [stdout]     |
[INFO] [stdout] 172 | ...                   InfixToken::Operand(x) => break,
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "21643f27b6bb03178f60be8441e1d8d43027a78bcf428de638bb0b497971c31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21643f27b6bb03178f60be8441e1d8d43027a78bcf428de638bb0b497971c31d", kill_on_drop: false }`
[INFO] [stdout] 21643f27b6bb03178f60be8441e1d8d43027a78bcf428de638bb0b497971c31d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04a7fa1fe6c7e237fbcf536ff80ef9028276197091cf33d7ab3185f3881ba37b
[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" "04a7fa1fe6c7e237fbcf536ff80ef9028276197091cf33d7ab3185f3881ba37b", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:134:28
[INFO] [stdout]     |
[INFO] [stdout] 134 |                &InfixToken::Operand(x) => {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling your v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:140:29
[INFO] [stdout]     |
[INFO] [stdout] 140 |                &InfixToken::Operator(x) => {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:172:31
[INFO] [stdout]     |
[INFO] [stdout] 172 | ...                   InfixToken::Operand(x) => break,
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:134:28
[INFO] [stdout]     |
[INFO] [stdout] 134 |                &InfixToken::Operand(x) => {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:140:29
[INFO] [stdout]     |
[INFO] [stdout] 140 |                &InfixToken::Operator(x) => {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:172:31
[INFO] [stdout]     |
[INFO] [stdout] 172 | ...                   InfixToken::Operand(x) => break,
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "04a7fa1fe6c7e237fbcf536ff80ef9028276197091cf33d7ab3185f3881ba37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a7fa1fe6c7e237fbcf536ff80ef9028276197091cf33d7ab3185f3881ba37b", kill_on_drop: false }`
[INFO] [stdout] 04a7fa1fe6c7e237fbcf536ff80ef9028276197091cf33d7ab3185f3881ba37b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46b1906bf6ed3d4384c3f799ffff62cd1bc691a84719129bed4b3ddbaf1fd785
[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" "46b1906bf6ed3d4384c3f799ffff62cd1bc691a84719129bed4b3ddbaf1fd785", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stdout] running 3 tests
[INFO] [stderr]    --> src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |                &InfixToken::Operand(x) => {
[INFO] [stderr]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:140:29
[INFO] [stderr]     |
[INFO] [stderr] 140 |                &InfixToken::Operator(x) => {
[INFO] [stderr]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:172:31
[INFO] [stderr]     |
[INFO] [stderr] 172 | ...                   InfixToken::Operand(x) => break,
[INFO] [stderr]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:134:28
[INFO] [stderr]     |
[INFO] [stderr] 134 |                &InfixToken::Operand(x) => {
[INFO] [stderr]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:140:29
[INFO] [stderr]     |
[INFO] [stderr] 140 |                &InfixToken::Operator(x) => {
[INFO] [stderr]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:172:31
[INFO] [stderr]     |
[INFO] [stderr] 172 | ...                   InfixToken::Operand(x) => break,
[INFO] [stderr]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/your-e5c0a62c1dacface)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_works1 ... ok
[INFO] [stderr]    Doc-tests your
[INFO] [stdout] test tests::it_works2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "46b1906bf6ed3d4384c3f799ffff62cd1bc691a84719129bed4b3ddbaf1fd785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b1906bf6ed3d4384c3f799ffff62cd1bc691a84719129bed4b3ddbaf1fd785", kill_on_drop: false }`
[INFO] [stdout] 46b1906bf6ed3d4384c3f799ffff62cd1bc691a84719129bed4b3ddbaf1fd785