[INFO] cloning repository https://github.com/Wilfred/sooty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wilfred/sooty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilfred%2Fsooty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilfred%2Fsooty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f58fbecffbb7973903da328e77296ba7364b4122
[INFO] testing Wilfred/sooty against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilfred%2Fsooty" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Wilfred/sooty on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Wilfred/sooty
[INFO] finished tweaking git repo https://github.com/Wilfred/sooty
[INFO] tweaked toml for git repo https://github.com/Wilfred/sooty written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Wilfred/sooty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v0.2.6
[INFO] [stderr]   Downloaded regex-syntax v0.3.3
[INFO] [stderr]   Downloaded aho-corasick v0.5.2
[INFO] [stderr]   Downloaded regex v0.1.71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] ed43f8a506ad04800f9799fafe6460cfce5a2a3be59be084561ac911bcf3bede
[INFO] running `Command { std: "docker" "start" "-a" "ed43f8a506ad04800f9799fafe6460cfce5a2a3be59be084561ac911bcf3bede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed43f8a506ad04800f9799fafe6460cfce5a2a3be59be084561ac911bcf3bede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed43f8a506ad04800f9799fafe6460cfce5a2a3be59be084561ac911bcf3bede", kill_on_drop: false }`
[INFO] [stdout] ed43f8a506ad04800f9799fafe6460cfce5a2a3be59be084561ac911bcf3bede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb43bbafa2b62a3c33fe0fe5baf1119bb5a3ac6d72fdc9a59b0d292111dc4d0e
[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" "eb43bbafa2b62a3c33fe0fe5baf1119bb5a3ac6d72fdc9a59b0d292111dc4d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.13
[INFO] [stderr]    Compiling winapi v0.2.7
[INFO] [stderr]    Compiling regex-syntax v0.3.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling aho-corasick v0.5.2
[INFO] [stderr]    Compiling thread_local v0.2.6
[INFO] [stderr]    Compiling regex v0.1.71
[INFO] [stderr]    Compiling sooty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:93:26
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     Some(mut parent_list) => {
[INFO] [stdout]    |                          ----^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 13.01s
[INFO] running `Command { std: "docker" "inspect" "eb43bbafa2b62a3c33fe0fe5baf1119bb5a3ac6d72fdc9a59b0d292111dc4d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb43bbafa2b62a3c33fe0fe5baf1119bb5a3ac6d72fdc9a59b0d292111dc4d0e", kill_on_drop: false }`
[INFO] [stdout] eb43bbafa2b62a3c33fe0fe5baf1119bb5a3ac6d72fdc9a59b0d292111dc4d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fd13ec3346e2fa717d824853927f65345ffcc803e0123947f3343a905e97153
[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" "4fd13ec3346e2fa717d824853927f65345ffcc803e0123947f3343a905e97153", kill_on_drop: false }`
[INFO] [stderr]    Compiling sooty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:93:26
[INFO] [stdout]    |
[INFO] [stdout] 93 |                     Some(mut parent_list) => {
[INFO] [stdout]    |                          ----^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "4fd13ec3346e2fa717d824853927f65345ffcc803e0123947f3343a905e97153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd13ec3346e2fa717d824853927f65345ffcc803e0123947f3343a905e97153", kill_on_drop: false }`
[INFO] [stdout] 4fd13ec3346e2fa717d824853927f65345ffcc803e0123947f3343a905e97153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee6c36b1e34d9710abe15da23fa4a0abb072586e0b6464a3f9acaeee7c81eddf
[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" "ee6c36b1e34d9710abe15da23fa4a0abb072586e0b6464a3f9acaeee7c81eddf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 8 tests
[INFO] [stderr]   --> src/lexer.rs:93:26
[INFO] [stdout] test lexer::test_lex_left_paren_and_number ... ok
[INFO] [stderr]    |
[INFO] [stdout] test lexer::test_lex_left_paren ... ok
[INFO] [stderr] 93 |                     Some(mut parent_list) => {
[INFO] [stdout] test lexer::test_parse_empty ... ok
[INFO] [stderr]    |                          ----^^^^^^^^^^^
[INFO] [stdout] test lexer::test_lex_multiple_numbers ... ok
[INFO] [stderr]    |                          |
[INFO] [stdout] test lexer::test_parse_unbalanced_left ... ok
[INFO] [stderr]    |                          help: remove this `mut`
[INFO] [stdout] test lexer::test_parse_unbalanced_right ... ok
[INFO] [stderr]    |
[INFO] [stdout] test lexer::test_lex_single_number ... ok
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sooty` (bin "sooty" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sooty-29169aa4d48aedaa)
[INFO] [stdout] test lexer::test_lex_right_paren ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee6c36b1e34d9710abe15da23fa4a0abb072586e0b6464a3f9acaeee7c81eddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6c36b1e34d9710abe15da23fa4a0abb072586e0b6464a3f9acaeee7c81eddf", kill_on_drop: false }`
[INFO] [stdout] ee6c36b1e34d9710abe15da23fa4a0abb072586e0b6464a3f9acaeee7c81eddf