[INFO] fetching crate medusa 0.3.0...
[INFO] testing medusa-0.3.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate medusa 0.3.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate medusa 0.3.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medusa 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate medusa 0.3.0
[INFO] tweaked toml for crates.io crate medusa 0.3.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate medusa 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5ac8ff5201191f4b96997d1531550845171efd15655e9c6a384ede775c0481b
[INFO] running `Command { std: "docker" "start" "-a" "a5ac8ff5201191f4b96997d1531550845171efd15655e9c6a384ede775c0481b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5ac8ff5201191f4b96997d1531550845171efd15655e9c6a384ede775c0481b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ac8ff5201191f4b96997d1531550845171efd15655e9c6a384ede775c0481b", kill_on_drop: false }`
[INFO] [stdout] a5ac8ff5201191f4b96997d1531550845171efd15655e9c6a384ede775c0481b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 868d60ad4f5e04b40a549b4334cab7958b61cc337fcf5108b945e9f5d86103e1
[INFO] running `Command { std: "docker" "start" "-a" "868d60ad4f5e04b40a549b4334cab7958b61cc337fcf5108b945e9f5d86103e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling medusa v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "868d60ad4f5e04b40a549b4334cab7958b61cc337fcf5108b945e9f5d86103e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "868d60ad4f5e04b40a549b4334cab7958b61cc337fcf5108b945e9f5d86103e1", kill_on_drop: false }`
[INFO] [stdout] 868d60ad4f5e04b40a549b4334cab7958b61cc337fcf5108b945e9f5d86103e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19652f2a57a6ef26411616b84179498b0f45ce26034fb48fda0f54875084b84d
[INFO] running `Command { std: "docker" "start" "-a" "19652f2a57a6ef26411616b84179498b0f45ce26034fb48fda0f54875084b84d", kill_on_drop: false }`
[INFO] [stderr]    Compiling medusa v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stdout]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stdout]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]   --> examples/functions/mod.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stdout]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stdout]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]   --> examples/functions/mod.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_twice`
[INFO] [stdout]   --> examples/functions/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stdout]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]  --> examples/functions/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stdout]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]   --> examples/functions/mod.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_help`
[INFO] [stdout]  --> examples/functions/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_version`
[INFO] [stdout]   --> examples/functions/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_twice`
[INFO] [stdout]   --> examples/functions/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "19652f2a57a6ef26411616b84179498b0f45ce26034fb48fda0f54875084b84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19652f2a57a6ef26411616b84179498b0f45ce26034fb48fda0f54875084b84d", kill_on_drop: false }`
[INFO] [stdout] 19652f2a57a6ef26411616b84179498b0f45ce26034fb48fda0f54875084b84d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0648a761a2c37499247f44e3be9b8721223a78354ad7453890e535252f62b223
[INFO] running `Command { std: "docker" "start" "-a" "0648a761a2c37499247f44e3be9b8721223a78354ad7453890e535252f62b223", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stderr]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> examples/functions/mod.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_twice`
[INFO] [stderr]   --> examples/functions/mod.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `medusa` (example "simple") generated 4 warnings
[INFO] [stderr] warning: function is never used: `show_help`
[INFO] [stderr]  --> examples/functions/mod.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_version`
[INFO] [stderr]   --> examples/functions/mod.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_twice`
[INFO] [stderr]   --> examples/functions/mod.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `medusa` (example "handler_append") generated 6 warnings (3 duplicates)
[INFO] [stderr] warning: `medusa` (example "stateful") generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/medusa-b9fb35de9c4e004e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests medusa
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::clone_hints (line 328) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::get_actions (line 209) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::append (line 431) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::new (line 81) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::set_version (line 230) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::clone_actions (line 240) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::run (line 100) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::set_default_command (line 196) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::set_name (line 251) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::extract_hints (line 358) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::get_hints (line 297) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::append_handler (line 70) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::parse_args (line 103) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::extract_actions (line 270) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Variant (line 21) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::get_arg (line 178) ... ok
[INFO] [stdout] test src/core/handler.rs - core::handler::Handler::add (line 388) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::new (line 20) ... ok
[INFO] [stdout] test src/core/command_line.rs - core::command_line::CommandLine::set_handler (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0648a761a2c37499247f44e3be9b8721223a78354ad7453890e535252f62b223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0648a761a2c37499247f44e3be9b8721223a78354ad7453890e535252f62b223", kill_on_drop: false }`
[INFO] [stdout] 0648a761a2c37499247f44e3be9b8721223a78354ad7453890e535252f62b223
