[INFO] cloning repository https://github.com/codebje/rustmtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codebje/rustmtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Frustmtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Frustmtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57ff43c1fce32d12e3ecb092618ab194acb47ea0
[INFO] checking codebje/rustmtest against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebje%2Frustmtest" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codebje/rustmtest on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codebje/rustmtest
[INFO] finished tweaking git repo https://github.com/codebje/rustmtest
[INFO] tweaked toml for git repo https://github.com/codebje/rustmtest written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/codebje/rustmtest 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded exitcode v1.1.2
[INFO] [stderr]   Downloaded goblin v0.2.0
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[INFO] [stderr]   Downloaded unicorn v0.9.1
[INFO] [stderr]   Downloaded libunicorn-sys v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9afd874a471d693f85bef94d6d33f7d82863e9df5cbfaee40ce45e637fe1fc2
[INFO] running `Command { std: "docker" "start" "-a" "f9afd874a471d693f85bef94d6d33f7d82863e9df5cbfaee40ce45e637fe1fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9afd874a471d693f85bef94d6d33f7d82863e9df5cbfaee40ce45e637fe1fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9afd874a471d693f85bef94d6d33f7d82863e9df5cbfaee40ce45e637fe1fc2", kill_on_drop: false }`
[INFO] [stdout] f9afd874a471d693f85bef94d6d33f7d82863e9df5cbfaee40ce45e637fe1fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 362d98da9be717356ab2291100b58c3a319a0896b827dd70861c82552560c162
[INFO] running `Command { std: "docker" "start" "-a" "362d98da9be717356ab2291100b58c3a319a0896b827dd70861c82552560c162", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]     Checking backtrace v0.3.43
[INFO] [stderr]    Compiling os_type v2.2.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling libunicorn-sys v0.9.1
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]     Checking unicorn v0.9.1
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking goblin v0.2.0
[INFO] [stderr]     Checking rustmtest v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `assert_ok`
[INFO] [stdout]    --> src/lex/mod.rs:194:14
[INFO] [stdout]     |
[INFO] [stdout] 194 | macro_rules! assert_ok {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `assert_err`
[INFO] [stdout]    --> src/lex/mod.rs:207:14
[INFO] [stdout]     |
[INFO] [stdout] 207 | macro_rules! assert_err {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `assert_json`
[INFO] [stdout]    --> src/lex/mod.rs:214:14
[INFO] [stdout]     |
[INFO] [stdout] 214 | macro_rules! assert_json {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lex_with` is never used
[INFO] [stdout]   --> src/lex/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait LexWith<'i, E>: Sized {
[INFO] [stdout]    |           ------- associated function in this trait
[INFO] [stdout] 32 |     fn lex_with(input: &'i str, extra: E) -> LexResult<'i, Self>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lex_with` is never used
[INFO] [stdout]   --> src/lex/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait LexWith<'i, E>: Sized {
[INFO] [stdout]    |           ------- associated function in this trait
[INFO] [stdout] 32 |     fn lex_with(input: &'i str, extra: E) -> LexResult<'i, Self>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "362d98da9be717356ab2291100b58c3a319a0896b827dd70861c82552560c162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362d98da9be717356ab2291100b58c3a319a0896b827dd70861c82552560c162", kill_on_drop: false }`
[INFO] [stdout] 362d98da9be717356ab2291100b58c3a319a0896b827dd70861c82552560c162