[INFO] cloning repository https://github.com/varungandhi-src/test-xrepo-ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varungandhi-src/test-xrepo-ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarungandhi-src%2Ftest-xrepo-ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarungandhi-src%2Ftest-xrepo-ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d546613622a5bbca60ef3fdf4bd4a328d8e3538
[INFO] checking varungandhi-src/test-xrepo-ref against try#da0275e101cdc809ce291ed8b64d6f82c6b65467 for pr-134276
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarungandhi-src%2Ftest-xrepo-ref" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varungandhi-src/test-xrepo-ref on toolchain da0275e101cdc809ce291ed8b64d6f82c6b65467
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/varungandhi-src/test-xrepo-ref
[INFO] finished tweaking git repo https://github.com/varungandhi-src/test-xrepo-ref
[INFO] tweaked toml for git repo https://github.com/varungandhi-src/test-xrepo-ref written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/varungandhi-src/test-xrepo-ref 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" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7a3821270a5374ebb91419bbc958f74b696a84c69715f2db2d8d1c8d03c1190
[INFO] running `Command { std: "docker" "start" "-a" "e7a3821270a5374ebb91419bbc958f74b696a84c69715f2db2d8d1c8d03c1190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a3821270a5374ebb91419bbc958f74b696a84c69715f2db2d8d1c8d03c1190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a3821270a5374ebb91419bbc958f74b696a84c69715f2db2d8d1c8d03c1190", kill_on_drop: false }`
[INFO] [stdout] e7a3821270a5374ebb91419bbc958f74b696a84c69715f2db2d8d1c8d03c1190
[INFO] checking varungandhi-src/test-xrepo-ref against try#da0275e101cdc809ce291ed8b64d6f82c6b65467 for pr-134276
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarungandhi-src%2Ftest-xrepo-ref" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varungandhi-src/test-xrepo-ref on toolchain da0275e101cdc809ce291ed8b64d6f82c6b65467
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/varungandhi-src/test-xrepo-ref
[INFO] finished tweaking git repo https://github.com/varungandhi-src/test-xrepo-ref
[INFO] tweaked toml for git repo https://github.com/varungandhi-src/test-xrepo-ref written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/varungandhi-src/test-xrepo-ref 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" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04082f25ee5ac591978a6e2d225caa04577be96a0fe298133c8a04623a890ce5
[INFO] running `Command { std: "docker" "start" "-a" "04082f25ee5ac591978a6e2d225caa04577be96a0fe298133c8a04623a890ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04082f25ee5ac591978a6e2d225caa04577be96a0fe298133c8a04623a890ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04082f25ee5ac591978a6e2d225caa04577be96a0fe298133c8a04623a890ce5", kill_on_drop: false }`
[INFO] [stdout] 04082f25ee5ac591978a6e2d225caa04577be96a0fe298133c8a04623a890ce5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33d1d9fa658efa91129f3745564f678fabe398d27a34ce9369f883e398f85bbd
[INFO] running `Command { std: "docker" "start" "-a" "33d1d9fa658efa91129f3745564f678fabe398d27a34ce9369f883e398f85bbd", kill_on_drop: false }`
[INFO] [stderr]     Checking mylib v0.1.0 (/opt/rustwide/workdir/crates/mylib)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> crates/mylib/src/lib.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn f<A>(&mut self, a: A) where A: T {}
[INFO] [stdout]   |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> crates/mylib/src/lib.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn f<A>(&mut self, a: A) where A: T {}
[INFO] [stdout]   |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking test-xrepo-ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "33d1d9fa658efa91129f3745564f678fabe398d27a34ce9369f883e398f85bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d1d9fa658efa91129f3745564f678fabe398d27a34ce9369f883e398f85bbd", kill_on_drop: false }`
[INFO] [stdout] 33d1d9fa658efa91129f3745564f678fabe398d27a34ce9369f883e398f85bbd