[INFO] cloning repository https://github.com/elpinal/tutor-ml-modules
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elpinal/tutor-ml-modules" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpinal%2Ftutor-ml-modules", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpinal%2Ftutor-ml-modules'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2d3bd8f4d426f31818e4c8bccdbf7c1a5c62ea6
[INFO] checking elpinal/tutor-ml-modules against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felpinal%2Ftutor-ml-modules" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/elpinal/tutor-ml-modules
[INFO] finished tweaking git repo https://github.com/elpinal/tutor-ml-modules
[INFO] tweaked toml for git repo https://github.com/elpinal/tutor-ml-modules written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/elpinal/tutor-ml-modules on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/elpinal/tutor-ml-modules 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d6aaa36f8b33eebb98d340c9359c16aa2ea774de5624e99c225ffaf6fb78398
[INFO] running `Command { std: "docker" "start" "-a" "7d6aaa36f8b33eebb98d340c9359c16aa2ea774de5624e99c225ffaf6fb78398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d6aaa36f8b33eebb98d340c9359c16aa2ea774de5624e99c225ffaf6fb78398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6aaa36f8b33eebb98d340c9359c16aa2ea774de5624e99c225ffaf6fb78398", kill_on_drop: false }`
[INFO] [stdout] 7d6aaa36f8b33eebb98d340c9359c16aa2ea774de5624e99c225ffaf6fb78398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37caad8b4852ce090eea8921e514221edc3c6bbbb59ed49a32852011200cb305
[INFO] running `Command { std: "docker" "start" "-a" "37caad8b4852ce090eea8921e514221edc3c6bbbb59ed49a32852011200cb305", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling peg-runtime v0.6.3 (https://github.com/kevinmehall/rust-peg?rev=7d03e42621b3be40e79306fa34ae9d406aa85965#7d03e426)
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling peg-macros v0.6.3 (https://github.com/kevinmehall/rust-peg?rev=7d03e42621b3be40e79306fa34ae9d406aa85965#7d03e426)
[INFO] [stderr]     Checking peg v0.6.3 (https://github.com/kevinmehall/rust-peg?rev=7d03e42621b3be40e79306fa34ae9d406aa85965#7d03e426)
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking tutor-ml-modules v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/il/tycon.rs:321:15
[INFO] [stdout]     |
[INFO] [stdout] 321 |     fn unroll(&self, table: &UnifTable) -> Cow<Self> {
[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] 321 |     fn unroll(&self, table: &UnifTable) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/il/tycon.rs:321:15
[INFO] [stdout]     |
[INFO] [stdout] 321 |     fn unroll(&self, table: &UnifTable) -> Cow<Self> {
[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] 321 |     fn unroll(&self, table: &UnifTable) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "37caad8b4852ce090eea8921e514221edc3c6bbbb59ed49a32852011200cb305", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37caad8b4852ce090eea8921e514221edc3c6bbbb59ed49a32852011200cb305", kill_on_drop: false }`
[INFO] [stdout] 37caad8b4852ce090eea8921e514221edc3c6bbbb59ed49a32852011200cb305
