[INFO] cloning repository https://github.com/sirkibsirkib/combinatory
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sirkibsirkib/combinatory" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcombinatory", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcombinatory'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5658fdf951267f7fd3cade653375b19c931e0dd
[INFO] checking sirkibsirkib/combinatory against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirkibsirkib%2Fcombinatory" "/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/sirkibsirkib/combinatory on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sirkibsirkib/combinatory
[INFO] finished tweaking git repo https://github.com/sirkibsirkib/combinatory
[INFO] tweaked toml for git repo https://github.com/sirkibsirkib/combinatory written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/sirkibsirkib/combinatory already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2240b3cdae2f9e310ea723697300e5f01ba44d7c7945ee11d8358b306bdd2fbe
[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" "2240b3cdae2f9e310ea723697300e5f01ba44d7c7945ee11d8358b306bdd2fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2240b3cdae2f9e310ea723697300e5f01ba44d7c7945ee11d8358b306bdd2fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2240b3cdae2f9e310ea723697300e5f01ba44d7c7945ee11d8358b306bdd2fbe", kill_on_drop: false }`
[INFO] [stdout] 2240b3cdae2f9e310ea723697300e5f01ba44d7c7945ee11d8358b306bdd2fbe
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ee4ff4f96f073d0f5602e6daf698c5da48b13bd11225e7b8cc4dbaed5b9f124
[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" "6ee4ff4f96f073d0f5602e6daf698c5da48b13bd11225e7b8cc4dbaed5b9f124", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking combinatory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `env`, `fmt`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fmt,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 17 |     env,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |         Write,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RewriteKey::*`
[INFO] [stdout]    --> src/main.rs:210:7
[INFO] [stdout]     |
[INFO] [stdout] 210 |         use RewriteKey::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `env`, `fmt`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fmt,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 17 |     env,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |         Write,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RewriteKey::*`
[INFO] [stdout]    --> src/main.rs:210:7
[INFO] [stdout]     |
[INFO] [stdout] 210 |         use RewriteKey::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `lines` found for struct `StdinLock<'_>` in the current scope
[INFO] [stdout]     --> src/main.rs:457:37
[INFO] [stdout]      |
[INFO] [stdout] 457  |     let mut iterator = stdin.lock().lines();
[INFO] [stdout]      |                                     ^^^^^ method not found in `StdinLock<'_>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]      |
[INFO] [stdout] 7    | use std::io::BufRead;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `lines` found for struct `StdinLock<'_>` in the current scope
[INFO] [stdout]     --> src/main.rs:457:37
[INFO] [stdout]      |
[INFO] [stdout] 457  |     let mut iterator = stdin.lock().lines();
[INFO] [stdout]      |                                     ^^^^^ method not found in `StdinLock<'_>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]      |
[INFO] [stdout] 7    | use std::io::BufRead;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `combinatory`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6ee4ff4f96f073d0f5602e6daf698c5da48b13bd11225e7b8cc4dbaed5b9f124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee4ff4f96f073d0f5602e6daf698c5da48b13bd11225e7b8cc4dbaed5b9f124", kill_on_drop: false }`
[INFO] [stdout] 6ee4ff4f96f073d0f5602e6daf698c5da48b13bd11225e7b8cc4dbaed5b9f124