[INFO] cloning repository https://github.com/mavroprovato/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mavroprovato/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmavroprovato%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmavroprovato%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f4dafeb76fbceaf9f0ce139139222609dfcff2a
[INFO] testing mavroprovato/rust-algorithms against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmavroprovato%2Frust-algorithms" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mavroprovato/rust-algorithms on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mavroprovato/rust-algorithms
[INFO] finished tweaking git repo https://github.com/mavroprovato/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/mavroprovato/rust-algorithms written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mavroprovato/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] e2bfc9dc581893e7b2972ed71bae95247e32bfdd6b9e82ea77344d10d2d6769b
[INFO] running `Command { std: "docker" "start" "-a" "e2bfc9dc581893e7b2972ed71bae95247e32bfdd6b9e82ea77344d10d2d6769b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2bfc9dc581893e7b2972ed71bae95247e32bfdd6b9e82ea77344d10d2d6769b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2bfc9dc581893e7b2972ed71bae95247e32bfdd6b9e82ea77344d10d2d6769b", kill_on_drop: false }`
[INFO] [stdout] e2bfc9dc581893e7b2972ed71bae95247e32bfdd6b9e82ea77344d10d2d6769b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b56ce4174bc1731b7c553a35c3126b139bdb22225628f190a4334ac38d7563fa
[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" "b56ce4174bc1731b7c553a35c3126b139bdb22225628f190a4334ac38d7563fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/bin/percolation.rs:76:43
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                                           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers", ...)
[INFO] [stdout]    |                                                                          ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("{}", "Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "b56ce4174bc1731b7c553a35c3126b139bdb22225628f190a4334ac38d7563fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56ce4174bc1731b7c553a35c3126b139bdb22225628f190a4334ac38d7563fa", kill_on_drop: false }`
[INFO] [stdout] b56ce4174bc1731b7c553a35c3126b139bdb22225628f190a4334ac38d7563fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b279eaa43b152d9285237f526ce9c6e2b2c035c2e95e96eebb3c9a0e26767388
[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" "b279eaa43b152d9285237f526ce9c6e2b2c035c2e95e96eebb3c9a0e26767388", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/bin/percolation.rs:76:43
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                                           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers", ...)
[INFO] [stdout]    |                                                                          ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("{}", "Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/bin/percolation.rs:76:43
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                                           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("Cannot parse line {}: need at least two integers", ...)
[INFO] [stdout]    |                                                                          ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 panic!("{}", "Cannot parse line {}: need at least two integers")
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "b279eaa43b152d9285237f526ce9c6e2b2c035c2e95e96eebb3c9a0e26767388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b279eaa43b152d9285237f526ce9c6e2b2c035c2e95e96eebb3c9a0e26767388", kill_on_drop: false }`
[INFO] [stdout] b279eaa43b152d9285237f526ce9c6e2b2c035c2e95e96eebb3c9a0e26767388
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", 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] d2650a46d4cab7d9a2d0caa9d2095258a6a5cf4c351014257dbc24418cf42ce1
[INFO] running `Command { std: "docker" "start" "-a" "d2650a46d4cab7d9a2d0caa9d2095258a6a5cf4c351014257dbc24418cf42ce1", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/bin/percolation.rs:76:43
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("Cannot parse line {}: need at least two integers")
[INFO] [stderr]    |                                           ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("Cannot parse line {}: need at least two integers", ...)
[INFO] [stderr]    |                                                                          ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("{}", "Cannot parse line {}: need at least two integers")
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/bin/percolation.rs:76:43
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("Cannot parse line {}: need at least two integers")
[INFO] [stderr]    |                                           ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("Cannot parse line {}: need at least two integers", ...)
[INFO] [stderr]    |                                                                          ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 panic!("{}", "Cannot parse line {}: need at least two integers")
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_algorithms-a3fd5b6a8f1561a0)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/percolation-9d465b7f465333a6)
[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] [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 tests/tests.rs (/opt/rustwide/target/debug/deps/tests-fbc1552bf044bb63)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test union_find::weighted_quick_union::quick_union_union ... ok
[INFO] [stdout] test union_find::quick_find::quick_find_component_count ... ok
[INFO] [stdout] test union_find::quick_find::quick_find_union_already_connected ... ok
[INFO] [stdout] test union_find::quick_union::quick_union_union_already_connected ... ok
[INFO] [stdout] test union_find::quick_union::quick_union_union ... ok
[INFO] [stdout] test union_find::quick_union::quick_union_component_count ... ok
[INFO] [stdout] test union_find::weighted_quick_union::quick_union_union_already_connected ... ok
[INFO] [stdout] test union_find::weighted_quick_union_path_compression::quick_union_component_count ... ok
[INFO] [stdout] test union_find::weighted_quick_union_path_compression::quick_union_union ... ok
[INFO] [stdout] test union_find::quick_find::quick_find_union ... ok
[INFO] [stdout] test union_find::weighted_quick_union::quick_union_component_count ... ok
[INFO] [stdout] test union_find::weighted_quick_union_path_compression::quick_union_union_already_connected ... ok
[INFO] [stdout] test union_find::quick_union::quick_union_out_of_bounds ... ok
[INFO] [stdout] test union_find::weighted_quick_union::quick_union_out_of_bounds ... ok
[INFO] [stderr]    Doc-tests rust-algorithms
[INFO] [stdout] test union_find::quick_find::quick_find_not_zero ... ok
[INFO] [stdout] test union_find::quick_find::quick_find_out_of_bounds ... ok
[INFO] [stdout] test union_find::weighted_quick_union_path_compression::quick_union_not_zero ... ok
[INFO] [stdout] test union_find::weighted_quick_union::quick_union_not_zero ... ok
[INFO] [stdout] test union_find::quick_union::quick_union_not_zero ... ok
[INFO] [stdout] test union_find::weighted_quick_union_path_compression::quick_union_out_of_bounds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[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" "d2650a46d4cab7d9a2d0caa9d2095258a6a5cf4c351014257dbc24418cf42ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2650a46d4cab7d9a2d0caa9d2095258a6a5cf4c351014257dbc24418cf42ce1", kill_on_drop: false }`
[INFO] [stdout] d2650a46d4cab7d9a2d0caa9d2095258a6a5cf4c351014257dbc24418cf42ce1