[INFO] cloning repository https://github.com/yichaolemon/Symbolic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yichaolemon/Symbolic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyichaolemon%2FSymbolic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyichaolemon%2FSymbolic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d95d6a8118138b337e06465177b249f2b2c0da4
[INFO] testing yichaolemon/Symbolic against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyichaolemon%2FSymbolic" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yichaolemon/Symbolic
[INFO] finished tweaking git repo https://github.com/yichaolemon/Symbolic
[INFO] tweaked toml for git repo https://github.com/yichaolemon/Symbolic written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yichaolemon/Symbolic on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yichaolemon/Symbolic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59799fce2d008ef0c4c9c67fe0eb9f260894d97b9461146bbdab50cc86f20f2c
[INFO] running `Command { std: "docker" "start" "-a" "59799fce2d008ef0c4c9c67fe0eb9f260894d97b9461146bbdab50cc86f20f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59799fce2d008ef0c4c9c67fe0eb9f260894d97b9461146bbdab50cc86f20f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59799fce2d008ef0c4c9c67fe0eb9f260894d97b9461146bbdab50cc86f20f2c", kill_on_drop: false }`
[INFO] [stdout] 59799fce2d008ef0c4c9c67fe0eb9f260894d97b9461146bbdab50cc86f20f2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01099af23dbda6a9079d0a73f201271624b0ee5eb9b1ac73631def3fadd697f2
[INFO] running `Command { std: "docker" "start" "-a" "01099af23dbda6a9079d0a73f201271624b0ee5eb9b1ac73631def3fadd697f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling symbolic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ParseError`, `c`, `parse`, and `var`
[INFO] [stdout]  --> src/measure.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{var, c, parser::{Expression, parse, ParseError}};
[INFO] [stdout]   |             ^^^  ^                       ^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_constants` is never used
[INFO] [stdout]    --> src/tree_transform.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn split_constants(exp: &Expression) -> Option<Expression> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn parse_leaf(expr: &str) -> ParseResult {
[INFO] [stdout]     |                     ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn parse_leaf(expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:176:29
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn parse_variable(mut expr: &str) -> ParseResult {
[INFO] [stdout]     |                             ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn parse_variable(mut expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:189:28
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn parse_literal(mut expr: &str) -> ParseResult {
[INFO] [stdout]     |                            ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn parse_literal(mut expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:208:20
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn parse_sum(expr: &str) -> ParseResult {
[INFO] [stdout]     |                    ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn parse_sum(expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:222:24
[INFO] [stdout]     |
[INFO] [stdout] 222 | fn parse_product(expr: &str) -> ParseResult {
[INFO] [stdout]     |                        ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 222 | fn parse_product(expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:236:22
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn parse_power(expr: &str) -> ParseResult {
[INFO] [stdout]     |                      ^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn parse_power(expr: &str) -> ParseResult<'_> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `Command { std: "docker" "inspect" "01099af23dbda6a9079d0a73f201271624b0ee5eb9b1ac73631def3fadd697f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01099af23dbda6a9079d0a73f201271624b0ee5eb9b1ac73631def3fadd697f2", kill_on_drop: false }`
[INFO] [stdout] 01099af23dbda6a9079d0a73f201271624b0ee5eb9b1ac73631def3fadd697f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 645f7957f8895d7e2c07aa7a20c1284aba61eabeb760f7f2ab2f17f2b7659e6d
[INFO] running `Command { std: "docker" "start" "-a" "645f7957f8895d7e2c07aa7a20c1284aba61eabeb760f7f2ab2f17f2b7659e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `test_longer_factoring_and_cancellation` is defined multiple times
[INFO] [stdout]    --> src/measure.rs:178:3
[INFO] [stdout]     |
[INFO] [stdout] 172 |   fn test_longer_factoring_and_cancellation() -> Result<(), ParseError> {
[INFO] [stdout]     |   --------------------------------------------------------------------- previous definition of the value `test_longer_factoring_and_cancellation` here
[INFO] [stdout] ...
[INFO] [stdout] 178 |   fn test_longer_factoring_and_cancellation() -> Result<(), ParseError> {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `test_longer_factoring_and_cancellation` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `test_longer_factoring_and_cancellation` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `ignored` in this scope
[INFO] [stdout]    --> src/measure.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 |   #[ignored]
[INFO] [stdout]     |     ^^^^^^^ help: a built-in attribute with a similar name exists: `ignore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `symbolic` (bin "symbolic" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "645f7957f8895d7e2c07aa7a20c1284aba61eabeb760f7f2ab2f17f2b7659e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645f7957f8895d7e2c07aa7a20c1284aba61eabeb760f7f2ab2f17f2b7659e6d", kill_on_drop: false }`
[INFO] [stdout] 645f7957f8895d7e2c07aa7a20c1284aba61eabeb760f7f2ab2f17f2b7659e6d