[INFO] fetching crate pemel 0.2.1...
[INFO] checking pemel-0.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate pemel 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate pemel 0.2.1
[INFO] finished tweaking crates.io crate pemel 0.2.1
[INFO] tweaked toml for crates.io crate pemel 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pemel 0.2.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pemel 0.2.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38f1e4d23914e4f020eef01a8d44de37f2d364f10295dd42bb3feae007d5d28d
[INFO] running `Command { std: "docker" "start" "-a" "38f1e4d23914e4f020eef01a8d44de37f2d364f10295dd42bb3feae007d5d28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38f1e4d23914e4f020eef01a8d44de37f2d364f10295dd42bb3feae007d5d28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38f1e4d23914e4f020eef01a8d44de37f2d364f10295dd42bb3feae007d5d28d", kill_on_drop: false }`
[INFO] [stdout] 38f1e4d23914e4f020eef01a8d44de37f2d364f10295dd42bb3feae007d5d28d
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f1856d3b16e6727ff4e3fc43688ceb0665b899d8d2441e9f47eec7030231da
[INFO] running `Command { std: "docker" "start" "-a" "15f1856d3b16e6727ff4e3fc43688ceb0665b899d8d2441e9f47eec7030231da", kill_on_drop: false }`
[INFO] [stderr]     Checking pemel v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/macros.rs:8:15
[INFO] [stdout]     |
[INFO] [stdout] 8   |             | Expr::Log($lhs, $rhs)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/expr.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |             Expr::Log(base, arg) => write!(f, "log({}, {})", base.to_string(), arg.to_string()),
[INFO] [stdout]     |             -------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 396 |             expr_pat!(BINOP: lhs, rhs) => write!(
[INFO] [stdout]     |             -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `expr_pat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/macros.rs:8:15
[INFO] [stdout]     |
[INFO] [stdout] 8   |             | Expr::Log($lhs, $rhs)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/expr.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |             Expr::Log(base, arg) => write!(f, "log({}, {})", base.to_string(), arg.to_string()),
[INFO] [stdout]     |             -------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 396 |             expr_pat!(BINOP: lhs, rhs) => write!(
[INFO] [stdout]     |             -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `expr_pat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "15f1856d3b16e6727ff4e3fc43688ceb0665b899d8d2441e9f47eec7030231da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f1856d3b16e6727ff4e3fc43688ceb0665b899d8d2441e9f47eec7030231da", kill_on_drop: false }`
[INFO] [stdout] 15f1856d3b16e6727ff4e3fc43688ceb0665b899d8d2441e9f47eec7030231da