[INFO] cloning repository https://github.com/jabcross/yuck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jabcross/yuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabcross%2Fyuck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabcross%2Fyuck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e68a87a95cfd447c9455c0148d7e9cf75f364e4e
[INFO] testing jabcross/yuck against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabcross%2Fyuck" "/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/jabcross/yuck on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jabcross/yuck
[INFO] finished tweaking git repo https://github.com/jabcross/yuck
[INFO] tweaked toml for git repo https://github.com/jabcross/yuck written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jabcross/yuck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] b3039ebc79bef899f7a461413086f60bfbde15f8bd569281be4d8a03b4bac192
[INFO] running `Command { std: "docker" "start" "-a" "b3039ebc79bef899f7a461413086f60bfbde15f8bd569281be4d8a03b4bac192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3039ebc79bef899f7a461413086f60bfbde15f8bd569281be4d8a03b4bac192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3039ebc79bef899f7a461413086f60bfbde15f8bd569281be4d8a03b4bac192", kill_on_drop: false }`
[INFO] [stdout] b3039ebc79bef899f7a461413086f60bfbde15f8bd569281be4d8a03b4bac192
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f8e2e761bb91f19e56ea990b51b4eded17346b39db231ca2bd6dc18b89f5c16
[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" "3f8e2e761bb91f19e56ea990b51b4eded17346b39db231ca2bd6dc18b89f5c16", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling yuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::*`
[INFO] [stdout]  --> src/node.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lexer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Match`
[INFO] [stdout]  --> src/lexer.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use regex::{Regex, Match};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_id` is never read
[INFO] [stdout]   --> src/grammar.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut current_id = "";
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `row` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut row = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_row` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `column` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut column = 0;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_column` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `offset` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut offset = 0;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_offset` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_as_tree`
[INFO] [stdout]   --> src/node.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn print_as_tree(&self, indent: usize) -> String {
[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: `pretty_print`
[INFO] [stdout]    --> src/grammar.rs:193:12
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn pretty_print(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lexer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.50s
[INFO] running `Command { std: "docker" "inspect" "3f8e2e761bb91f19e56ea990b51b4eded17346b39db231ca2bd6dc18b89f5c16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8e2e761bb91f19e56ea990b51b4eded17346b39db231ca2bd6dc18b89f5c16", kill_on_drop: false }`
[INFO] [stdout] 3f8e2e761bb91f19e56ea990b51b4eded17346b39db231ca2bd6dc18b89f5c16
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40e353e62897746134fda527d3be5901c90746624c1f8cac0d9b39110329ce5e
[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" "40e353e62897746134fda527d3be5901c90746624c1f8cac0d9b39110329ce5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling yuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::*`
[INFO] [stdout]  --> src/node.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lexer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Match`
[INFO] [stdout]  --> src/lexer.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use regex::{Regex, Match};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_id` is never read
[INFO] [stdout]   --> src/grammar.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut current_id = "";
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `row` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut row = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_row` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `column` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut column = 0;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_column` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `offset` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut offset = 0;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_offset` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_as_tree`
[INFO] [stdout]   --> src/node.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn print_as_tree(&self, indent: usize) -> String {
[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: `pretty_print`
[INFO] [stdout]    --> src/grammar.rs:193:12
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn pretty_print(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lexer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "40e353e62897746134fda527d3be5901c90746624c1f8cac0d9b39110329ce5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40e353e62897746134fda527d3be5901c90746624c1f8cac0d9b39110329ce5e", kill_on_drop: false }`
[INFO] [stdout] 40e353e62897746134fda527d3be5901c90746624c1f8cac0d9b39110329ce5e
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23e74a6f0d73bea130f3330a18c8f2e40b75b129eb86e4606069c6b2289d4f0b
[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" "23e74a6f0d73bea130f3330a18c8f2e40b75b129eb86e4606069c6b2289d4f0b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::lexer::*`
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::lexer::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Match`
[INFO] [stderr]  --> src/lexer.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use regex::{Regex, Match};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_id` is never read
[INFO] [stderr]   --> src/grammar.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut current_id = "";
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `row` is assigned to, but never used
[INFO] [stderr]   --> src/lexer.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut row = 0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_row` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `column` is assigned to, but never used
[INFO] [stderr]   --> src/lexer.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut column = 0;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_column` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `offset` is assigned to, but never used
[INFO] [stderr]   --> src/lexer.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut offset = 0;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_offset` instead
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_as_tree`
[INFO] [stderr]   --> src/node.rs:78:12
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn print_as_tree(&self, indent: usize) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pretty_print`
[INFO] [stderr]    --> src/grammar.rs:193:12
[INFO] [stderr]     |
[INFO] [stderr] 193 |     pub fn pretty_print(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/lexer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `yuck` (bin "yuck" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yuck-6a6b179a08a12a58)
[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" "23e74a6f0d73bea130f3330a18c8f2e40b75b129eb86e4606069c6b2289d4f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e74a6f0d73bea130f3330a18c8f2e40b75b129eb86e4606069c6b2289d4f0b", kill_on_drop: false }`
[INFO] [stdout] 23e74a6f0d73bea130f3330a18c8f2e40b75b129eb86e4606069c6b2289d4f0b