[INFO] cloning repository https://github.com/MarcoTz/essentials-of-compilation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcoTz/essentials-of-compilation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoTz%2Fessentials-of-compilation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoTz%2Fessentials-of-compilation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae61fb5e1ee193742774db97300372dc02ef2a1a
[INFO] checking MarcoTz/essentials-of-compilation against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoTz%2Fessentials-of-compilation" "/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/MarcoTz/essentials-of-compilation on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarcoTz/essentials-of-compilation
[INFO] finished tweaking git repo https://github.com/MarcoTz/essentials-of-compilation
[INFO] tweaked toml for git repo https://github.com/MarcoTz/essentials-of-compilation written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50687b3c6f5f81c47222bb4a33c69ae71783e7f59d07301dd6872dbe440ff316
[INFO] running `Command { std: "docker" "start" "-a" "50687b3c6f5f81c47222bb4a33c69ae71783e7f59d07301dd6872dbe440ff316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50687b3c6f5f81c47222bb4a33c69ae71783e7f59d07301dd6872dbe440ff316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50687b3c6f5f81c47222bb4a33c69ae71783e7f59d07301dd6872dbe440ff316", kill_on_drop: false }`
[INFO] [stdout] 50687b3c6f5f81c47222bb4a33c69ae71783e7f59d07301dd6872dbe440ff316
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf2156f72d21aa46a562d8f939bce759fdc32018b5dd1fb46a3ed8ef0219c475
[INFO] running `Command { std: "docker" "start" "-a" "cf2156f72d21aa46a562d8f939bce759fdc32018b5dd1fb46a3ed8ef0219c475", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking chapter1 v0.1.0 (/opt/rustwide/workdir/chapter1)
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking chapter2 v0.1.0 (/opt/rustwide/workdir/chapter2)
[INFO] [stderr]     Checking chapter4 v0.1.0 (/opt/rustwide/workdir/chapter4)
[INFO] [stderr]     Checking chapter3 v0.1.0 (/opt/rustwide/workdir/chapter3)
[INFO] [stderr]     Checking essentials-main v0.1.0 (/opt/rustwide/workdir/main)
[INFO] [stdout] error: this conversion is useless `l_var_reduced::exp::Exp` to `l_var_reduced::exp::Exp`
[INFO] [stdout]    --> chapter2/src/remove_complex_operands/exp.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let expected = l_var_reduced::Exp::Atm("x".to_owned().into()).into();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `l_var_reduced::exp::Exp` to `l_var_reduced::exp::Exp`
[INFO] [stdout]    --> chapter2/src/remove_complex_operands/exp.rs:124:24
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let expected = l_var_reduced::Exp::Atm(1.into()).into();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `l_var_reduced::exp::Exp` to `l_var_reduced::exp::Exp`
[INFO] [stdout]    --> chapter2/src/remove_complex_operands/exp.rs:133:24
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let expected = l_var_reduced::Exp::InputInt.into();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `l_var_reduced::exp::Exp` to `l_var_reduced::exp::Exp`
[INFO] [stdout]    --> chapter2/src/remove_complex_operands/exp.rs:146:24
[INFO] [stdout]     |
[INFO] [stdout] 146 |           let expected = l_var_reduced::Exp::UnaryOp {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 147 | |             op: l_var_reduced::UnaryOp::Neg,
[INFO] [stdout] 148 | |             exp: 1.into(),
[INFO] [stdout] 149 | |         }
[INFO] [stdout] 150 | |         .into();
[INFO] [stdout]     | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chapter2` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "cf2156f72d21aa46a562d8f939bce759fdc32018b5dd1fb46a3ed8ef0219c475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2156f72d21aa46a562d8f939bce759fdc32018b5dd1fb46a3ed8ef0219c475", kill_on_drop: false }`
[INFO] [stdout] cf2156f72d21aa46a562d8f939bce759fdc32018b5dd1fb46a3ed8ef0219c475