[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#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjabcross%2Fyuck" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jabcross/yuck on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55f546a522b287892ce60464f000453987784300806ae63cc4bbe02ef0dbdb61
[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" "55f546a522b287892ce60464f000453987784300806ae63cc4bbe02ef0dbdb61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55f546a522b287892ce60464f000453987784300806ae63cc4bbe02ef0dbdb61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f546a522b287892ce60464f000453987784300806ae63cc4bbe02ef0dbdb61", kill_on_drop: false }`
[INFO] [stdout] 55f546a522b287892ce60464f000453987784300806ae63cc4bbe02ef0dbdb61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", 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] c1ce940f362b3f9b63a87d8ea9f4494e9d447a149269ac652ae6304253315eef
[INFO] running `Command { std: "docker" "start" "-a" "c1ce940f362b3f9b63a87d8ea9f4494e9d447a149269ac652ae6304253315eef", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[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:25:13
[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:64:13
[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:65:13
[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:66:13
[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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.41s
[INFO] running `Command { std: "docker" "inspect" "c1ce940f362b3f9b63a87d8ea9f4494e9d447a149269ac652ae6304253315eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ce940f362b3f9b63a87d8ea9f4494e9d447a149269ac652ae6304253315eef", kill_on_drop: false }`
[INFO] [stdout] c1ce940f362b3f9b63a87d8ea9f4494e9d447a149269ac652ae6304253315eef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dd10ee208d48647ae8b2341f06a38c91efbcfe43b6fa1909db6dc57150ed74d
[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" "2dd10ee208d48647ae8b2341f06a38c91efbcfe43b6fa1909db6dc57150ed74d", 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:25:13
[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:64:13
[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:65:13
[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:66:13
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dd10ee208d48647ae8b2341f06a38c91efbcfe43b6fa1909db6dc57150ed74d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd10ee208d48647ae8b2341f06a38c91efbcfe43b6fa1909db6dc57150ed74d", kill_on_drop: false }`
[INFO] [stdout] 2dd10ee208d48647ae8b2341f06a38c91efbcfe43b6fa1909db6dc57150ed74d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a77a4176e59a9e5bd26e756a70da48f0b7b76f208016d5e172c29311b47461fc
[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" "a77a4176e59a9e5bd26e756a70da48f0b7b76f208016d5e172c29311b47461fc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `crate::lexer::*`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 2 | use crate::lexer::*;
[INFO] [stdout] 
[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:25:13
[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:64:13
[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:65:13
[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:66:13
[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: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yuck-7fa34efe694ddc86
[INFO] running `Command { std: "docker" "inspect" "a77a4176e59a9e5bd26e756a70da48f0b7b76f208016d5e172c29311b47461fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77a4176e59a9e5bd26e756a70da48f0b7b76f208016d5e172c29311b47461fc", kill_on_drop: false }`
[INFO] [stdout] a77a4176e59a9e5bd26e756a70da48f0b7b76f208016d5e172c29311b47461fc