[INFO] cloning repository https://github.com/amitsingh19975/EOC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amitsingh19975/EOC" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitsingh19975%2FEOC", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitsingh19975%2FEOC'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63147b890e602dd248e36f242be370d7fef44aa7
[INFO] checking amitsingh19975/EOC against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitsingh19975%2FEOC" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amitsingh19975/EOC 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/amitsingh19975/EOC
[INFO] finished tweaking git repo https://github.com/amitsingh19975/EOC
[INFO] tweaked toml for git repo https://github.com/amitsingh19975/EOC written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amitsingh19975/EOC 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9441e3c99e3dad9fc2c4786776d4261401f2ddc47ba20961ca9e8f900ffb31d4
[INFO] running `Command { std: "docker" "start" "-a" "9441e3c99e3dad9fc2c4786776d4261401f2ddc47ba20961ca9e8f900ffb31d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9441e3c99e3dad9fc2c4786776d4261401f2ddc47ba20961ca9e8f900ffb31d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9441e3c99e3dad9fc2c4786776d4261401f2ddc47ba20961ca9e8f900ffb31d4", kill_on_drop: false }`
[INFO] [stdout] 9441e3c99e3dad9fc2c4786776d4261401f2ddc47ba20961ca9e8f900ffb31d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4ef8a2d5c8c1c1e6964756364a317bc7843c22944a3bdf4123dc71b1af5bd91f
[INFO] running `Command { std: "docker" "start" "-a" "4ef8a2d5c8c1c1e6964756364a317bc7843c22944a3bdf4123dc71b1af5bd91f", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking eoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `OperatorFixity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) enum OperatorFixity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorAssociativity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) enum OperatorAssociativity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) enum NodeKind {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNode` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct AstNode {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstAttribute` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct AstAttribute {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstContext` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct AstContext {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorFixity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) enum OperatorFixity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorAssociativity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) enum OperatorAssociativity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) enum NodeKind {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNode` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct AstNode {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstAttribute` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct AstAttribute {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstContext` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct AstContext {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "4ef8a2d5c8c1c1e6964756364a317bc7843c22944a3bdf4123dc71b1af5bd91f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef8a2d5c8c1c1e6964756364a317bc7843c22944a3bdf4123dc71b1af5bd91f", kill_on_drop: false }`
[INFO] [stdout] 4ef8a2d5c8c1c1e6964756364a317bc7843c22944a3bdf4123dc71b1af5bd91f
[INFO] checking amitsingh19975/EOC against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitsingh19975%2FEOC" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amitsingh19975/EOC on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amitsingh19975/EOC
[INFO] finished tweaking git repo https://github.com/amitsingh19975/EOC
[INFO] tweaked toml for git repo https://github.com/amitsingh19975/EOC written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/amitsingh19975/EOC 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eefceacb7a139a876d721bfeedbdf0dd32e6eb3a38fd75773a4666fd6912b291
[INFO] running `Command { std: "docker" "start" "-a" "eefceacb7a139a876d721bfeedbdf0dd32e6eb3a38fd75773a4666fd6912b291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eefceacb7a139a876d721bfeedbdf0dd32e6eb3a38fd75773a4666fd6912b291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eefceacb7a139a876d721bfeedbdf0dd32e6eb3a38fd75773a4666fd6912b291", kill_on_drop: false }`
[INFO] [stdout] eefceacb7a139a876d721bfeedbdf0dd32e6eb3a38fd75773a4666fd6912b291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3277d79000310f4452edfffd74a9d138218bb9364c0cea0546e93cae859ac52c
[INFO] running `Command { std: "docker" "start" "-a" "3277d79000310f4452edfffd74a9d138218bb9364c0cea0546e93cae859ac52c", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking eoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `OperatorFixity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) enum OperatorFixity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorAssociativity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) enum OperatorAssociativity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) enum NodeKind {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNode` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct AstNode {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstAttribute` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct AstAttribute {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstContext` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct AstContext {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorFixity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) enum OperatorFixity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperatorAssociativity` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) enum OperatorAssociativity {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]   --> src/eoc/parser/basic.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) enum NodeKind {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstNode` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct AstNode {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstAttribute` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct AstAttribute {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstContext` is never constructed
[INFO] [stdout]   --> src/eoc/parser/basic.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct AstContext {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `Command { std: "docker" "inspect" "3277d79000310f4452edfffd74a9d138218bb9364c0cea0546e93cae859ac52c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3277d79000310f4452edfffd74a9d138218bb9364c0cea0546e93cae859ac52c", kill_on_drop: false }`
[INFO] [stdout] 3277d79000310f4452edfffd74a9d138218bb9364c0cea0546e93cae859ac52c