[INFO] cloning repository https://github.com/sombrastudios/simple_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sombrastudios/simple_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Fsimple_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Fsimple_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac6f67876d91f80f7801094aa1f6cb1338e09866
[INFO] checking sombrastudios/simple_lang against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Fsimple_lang" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sombrastudios/simple_lang on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sombrastudios/simple_lang
[INFO] finished tweaking git repo https://github.com/sombrastudios/simple_lang
[INFO] tweaked toml for git repo https://github.com/sombrastudios/simple_lang written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sombrastudios/simple_lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bf232278bc2b776982e1dfa534ef4e9e6c6561ad3383f2f3c100283104160d4
[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" "6bf232278bc2b776982e1dfa534ef4e9e6c6561ad3383f2f3c100283104160d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf232278bc2b776982e1dfa534ef4e9e6c6561ad3383f2f3c100283104160d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf232278bc2b776982e1dfa534ef4e9e6c6561ad3383f2f3c100283104160d4", kill_on_drop: false }`
[INFO] [stdout] 6bf232278bc2b776982e1dfa534ef4e9e6c6561ad3383f2f3c100283104160d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--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] 3fce7dc946fe5749ca6051bfeb31b551d737cdc6899478ab65b97e0dabd321a4
[INFO] running `Command { std: "docker" "start" "-a" "3fce7dc946fe5749ca6051bfeb31b551d737cdc6899478ab65b97e0dabd321a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking simple_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `util::tag_ws`
[INFO] [stdout]  --> src/parse/instructions/statements.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     util::tag_ws,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `map_res`
[INFO] [stdout]   --> src/parse/signature/functions.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     combinator::{map, map_res, opt},
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bytes::complete::tag`, `character::complete::one_of`, `terminated`
[INFO] [stdout]   --> src/parse/signature/vars.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             bytes::complete::tag,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |             character::complete::one_of,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |             combinator::{map, opt},
[INFO] [stdout] 17 |             sequence::{preceded, terminated, tuple},
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::tag_ws`
[INFO] [stdout]  --> src/parse/instructions/statements.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     util::tag_ws,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `map_res`
[INFO] [stdout]   --> src/parse/signature/functions.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     combinator::{map, map_res, opt},
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bytes::complete::tag`, `character::complete::one_of`, `terminated`
[INFO] [stdout]   --> src/parse/signature/vars.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             bytes::complete::tag,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |             character::complete::one_of,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |             combinator::{map, opt},
[INFO] [stdout] 17 |             sequence::{preceded, terminated, tuple},
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parse/instructions/control_flow.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/parse/instructions/expression.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/parse/instructions/control_flow.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/parse/instructions/expression.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cases`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     cases: Vec<Case>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `matcher`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     matcher: Box<Expression>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `then`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     then: Box<Expression>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tag_let`
[INFO] [stdout]   --> src/parse/keyword.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tag_let(i: &str) -> IResult<&str, &str> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `not_followed`
[INFO] [stdout]   --> src/parse/util.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn not_followed<'a, A, B>(
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `concat`
[INFO] [stdout]   --> src/parse/util.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn concat<'a, T, Elem>(
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fold_concat`
[INFO] [stdout]    --> src/parse/util.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn fold_concat<'a, T, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cases`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     cases: Vec<Case>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `matcher`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     matcher: Box<Expression>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `then`
[INFO] [stdout]   --> src/parse/instructions/is_expression.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     then: Box<Expression>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `not_followed`
[INFO] [stdout]   --> src/parse/util.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn not_followed<'a, A, B>(
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fold_concat`
[INFO] [stdout]    --> src/parse/util.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn fold_concat<'a, T, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.73s
[INFO] running `Command { std: "docker" "inspect" "3fce7dc946fe5749ca6051bfeb31b551d737cdc6899478ab65b97e0dabd321a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fce7dc946fe5749ca6051bfeb31b551d737cdc6899478ab65b97e0dabd321a4", kill_on_drop: false }`
[INFO] [stdout] 3fce7dc946fe5749ca6051bfeb31b551d737cdc6899478ab65b97e0dabd321a4