[INFO] cloning repository https://github.com/hayatoito/icfp2006
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hayatoito/icfp2006" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayatoito%2Ficfp2006", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayatoito%2Ficfp2006'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2761d0704b84f5c2096bae37be5d0bef3641251
[INFO] testing hayatoito/icfp2006 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayatoito%2Ficfp2006" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hayatoito/icfp2006 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/hayatoito/icfp2006
[INFO] finished tweaking git repo https://github.com/hayatoito/icfp2006
[INFO] tweaked toml for git repo https://github.com/hayatoito/icfp2006 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/hayatoito/icfp2006 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded textwrap v0.8.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.31
[INFO] [stderr]   Downloaded atty v0.2.3
[INFO] [stderr]   Downloaded structopt-derive v0.1.1
[INFO] [stderr]   Downloaded structopt v0.1.1
[INFO] [stderr]   Downloaded lazy_static v0.2.9
[INFO] [stderr]   Downloaded loggerv v0.4.0
[INFO] [stderr]   Downloaded libc v0.2.32
[INFO] [stderr]   Downloaded clap v2.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] 8a1b7d46e967ae7f542e6353331ca9363e0f36c2502b4df5e61e2664bd726eab
[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" "8a1b7d46e967ae7f542e6353331ca9363e0f36c2502b4df5e61e2664bd726eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a1b7d46e967ae7f542e6353331ca9363e0f36c2502b4df5e61e2664bd726eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1b7d46e967ae7f542e6353331ca9363e0f36c2502b4df5e61e2664bd726eab", kill_on_drop: false }`
[INFO] [stdout] 8a1b7d46e967ae7f542e6353331ca9363e0f36c2502b4df5e61e2664bd726eab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 75feac88c78db1741388d2456ed4de8d68f7e4d7e49647a43ab8ce5e2f0b5517
[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" "75feac88c78db1741388d2456ed4de8d68f7e4d7e49647a43ab8ce5e2f0b5517", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling structopt-derive v0.1.1
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling loggerv v0.4.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling structopt v0.1.1
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `InteractiveUm`
[INFO] [stdout]    --> src/um.rs:242:8
[INFO] [stdout]     |
[INFO] [stdout] 242 | struct InteractiveUm<R, W> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `repl`
[INFO] [stdout]    --> src/um.rs:251:12
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.27s
[INFO] running `Command { std: "docker" "inspect" "75feac88c78db1741388d2456ed4de8d68f7e4d7e49647a43ab8ce5e2f0b5517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75feac88c78db1741388d2456ed4de8d68f7e4d7e49647a43ab8ce5e2f0b5517", kill_on_drop: false }`
[INFO] [stdout] 75feac88c78db1741388d2456ed4de8d68f7e4d7e49647a43ab8ce5e2f0b5517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e368749ba11806cd791794f2f41fa4d24ed79428e95c1ab9541a343a91e54f22
[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" "e368749ba11806cd791794f2f41fa4d24ed79428e95c1ab9541a343a91e54f22", kill_on_drop: false }`
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `InteractiveUm`
[INFO] [stdout]    --> src/um.rs:242:8
[INFO] [stdout]     |
[INFO] [stdout] 242 | struct InteractiveUm<R, W> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `repl`
[INFO] [stdout]    --> src/um.rs:251:12
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `InteractiveUm`
[INFO] [stdout]    --> src/um.rs:242:8
[INFO] [stdout]     |
[INFO] [stdout] 242 | struct InteractiveUm<R, W> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `repl`
[INFO] [stdout]    --> src/um.rs:251:12
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "e368749ba11806cd791794f2f41fa4d24ed79428e95c1ab9541a343a91e54f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e368749ba11806cd791794f2f41fa4d24ed79428e95c1ab9541a343a91e54f22", kill_on_drop: false }`
[INFO] [stdout] e368749ba11806cd791794f2f41fa4d24ed79428e95c1ab9541a343a91e54f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] 3eb7c3e03ebc93395915e9089fafd13166607ab65ddc8c2e0e2d20ddfc908c5f
[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" "3eb7c3e03ebc93395915e9089fafd13166607ab65ddc8c2e0e2d20ddfc908c5f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:12
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:12
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/icfp2006-71a9dbc88a84e4a6)
[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/icfp2006-1fa146aa4915f6d8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/task-0d265ab3bee238a5)
[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 unittests (/opt/rustwide/target/debug/deps/um-9aa4a64f510dca55)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests icfp2006
[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] running `Command { std: "docker" "inspect" "3eb7c3e03ebc93395915e9089fafd13166607ab65ddc8c2e0e2d20ddfc908c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb7c3e03ebc93395915e9089fafd13166607ab65ddc8c2e0e2d20ddfc908c5f", kill_on_drop: false }`
[INFO] [stdout] 3eb7c3e03ebc93395915e9089fafd13166607ab65ddc8c2e0e2d20ddfc908c5f