[INFO] cloning repository https://github.com/ryuryu-ymj/sym_calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryuryu-ymj/sym_calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuryu-ymj%2Fsym_calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuryu-ymj%2Fsym_calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b62ac59f7c26fb35c9d04744ad59b8292da7a1da
[INFO] checking ryuryu-ymj/sym_calc against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuryu-ymj%2Fsym_calc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryuryu-ymj/sym_calc on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryuryu-ymj/sym_calc
[INFO] finished tweaking git repo https://github.com/ryuryu-ymj/sym_calc
[INFO] tweaked toml for git repo https://github.com/ryuryu-ymj/sym_calc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ryuryu-ymj/sym_calc 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c620d450261a7199d4c5c2537561267143c3ad78cd5258da1255222e7c262d4
[INFO] running `Command { std: "docker" "start" "-a" "1c620d450261a7199d4c5c2537561267143c3ad78cd5258da1255222e7c262d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c620d450261a7199d4c5c2537561267143c3ad78cd5258da1255222e7c262d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c620d450261a7199d4c5c2537561267143c3ad78cd5258da1255222e7c262d4", kill_on_drop: false }`
[INFO] [stdout] 1c620d450261a7199d4c5c2537561267143c3ad78cd5258da1255222e7c262d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c66111e78645a5d9f8920ac1b73d4cc596316bc70673e8d8d8719c8a6a978e44
[INFO] running `Command { std: "docker" "start" "-a" "c66111e78645a5d9f8920ac1b73d4cc596316bc70673e8d8d8719c8a6a978e44", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking sym_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `unevaluated_call` is never used
[INFO] [stdout]    --> src/math/expr.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 66  | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn unevaluated_call(callable: Expr, argument: Expr) -> Expr {
[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 `unevaluated_call` is never used
[INFO] [stdout]    --> src/math/expr.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 66  | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn unevaluated_call(callable: Expr, argument: Expr) -> Expr {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "c66111e78645a5d9f8920ac1b73d4cc596316bc70673e8d8d8719c8a6a978e44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c66111e78645a5d9f8920ac1b73d4cc596316bc70673e8d8d8719c8a6a978e44", kill_on_drop: false }`
[INFO] [stdout] c66111e78645a5d9f8920ac1b73d4cc596316bc70673e8d8d8719c8a6a978e44
[INFO] checking ryuryu-ymj/sym_calc against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuryu-ymj%2Fsym_calc" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryuryu-ymj/sym_calc on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryuryu-ymj/sym_calc
[INFO] finished tweaking git repo https://github.com/ryuryu-ymj/sym_calc
[INFO] tweaked toml for git repo https://github.com/ryuryu-ymj/sym_calc written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ryuryu-ymj/sym_calc 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f12f47e31aafb8bce88a32c926c56be8b0cac3d7f47ff4c9e37a915f9f0b3ae1
[INFO] running `Command { std: "docker" "start" "-a" "f12f47e31aafb8bce88a32c926c56be8b0cac3d7f47ff4c9e37a915f9f0b3ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f12f47e31aafb8bce88a32c926c56be8b0cac3d7f47ff4c9e37a915f9f0b3ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12f47e31aafb8bce88a32c926c56be8b0cac3d7f47ff4c9e37a915f9f0b3ae1", kill_on_drop: false }`
[INFO] [stdout] f12f47e31aafb8bce88a32c926c56be8b0cac3d7f47ff4c9e37a915f9f0b3ae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4588e8f25df0ef1bf36c1af41a81c7730dcec239de73dadda5f348104e7594a
[INFO] running `Command { std: "docker" "start" "-a" "c4588e8f25df0ef1bf36c1af41a81c7730dcec239de73dadda5f348104e7594a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking sym_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `unevaluated_call` is never used
[INFO] [stdout]    --> src/math/expr.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 66  | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn unevaluated_call(callable: Expr, argument: Expr) -> Expr {
[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 `unevaluated_call` is never used
[INFO] [stdout]    --> src/math/expr.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 66  | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn unevaluated_call(callable: Expr, argument: Expr) -> Expr {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "c4588e8f25df0ef1bf36c1af41a81c7730dcec239de73dadda5f348104e7594a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4588e8f25df0ef1bf36c1af41a81c7730dcec239de73dadda5f348104e7594a", kill_on_drop: false }`
[INFO] [stdout] c4588e8f25df0ef1bf36c1af41a81c7730dcec239de73dadda5f348104e7594a