[INFO] fetching crate countrs 0.1.6...
[INFO] checking countrs-0.1.6 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate countrs 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate countrs 0.1.6
[INFO] finished tweaking crates.io crate countrs 0.1.6
[INFO] tweaked toml for crates.io crate countrs 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate countrs 0.1.6 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc
[INFO] running `Command { std: "docker" "start" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking countrs v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `T` countrs
[INFO] [stdout]    --> src/lib.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |               let start = T::from_str(s)
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |                 .map_err(|_| {
[INFO] [stdout] 112 | |                     io::Error::new(
[INFO] [stdout] 113 | |                         io::ErrorKind::InvalidData,
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |                 })?
[INFO] [stdout] 117 | |                 .into();
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 116 -                 })?
[INFO] [stdout] 117 -                 .into();
[INFO] [stdout] 116 +                 })?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 110 ~             let start = <T as Into<_>>::into(T::from_str(s)
[INFO] [stdout] 111 |                 .map_err(|_| {
[INFO] [stdout] ...
[INFO] [stdout] 115 |                     )
[INFO] [stdout] 116 ~                 })?);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `T` countrs
[INFO] [stdout]    --> src/lib.rs:118:23
[INFO] [stdout]     |
[INFO] [stdout] 118 |               let end = T::from_str(e)
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 119 | |                 .map_err(|_| {
[INFO] [stdout] 120 | |                     io::Error::new(
[INFO] [stdout] 121 | |                         io::ErrorKind::InvalidData,
[INFO] [stdout] ...   |
[INFO] [stdout] 124 | |                 })?
[INFO] [stdout] 125 | |                 .into();
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 124 -                 })?
[INFO] [stdout] 125 -                 .into();
[INFO] [stdout] 124 +                 })?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 118 ~             let end = <T as Into<_>>::into(T::from_str(e)
[INFO] [stdout] 119 |                 .map_err(|_| {
[INFO] [stdout] ...
[INFO] [stdout] 123 |                     )
[INFO] [stdout] 124 ~                 })?);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `countrs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `T` countrs
[INFO] [stdout]    --> src/lib.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |               let start = T::from_str(s)
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |                 .map_err(|_| {
[INFO] [stdout] 112 | |                     io::Error::new(
[INFO] [stdout] 113 | |                         io::ErrorKind::InvalidData,
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |                 })?
[INFO] [stdout] 117 | |                 .into();
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 116 -                 })?
[INFO] [stdout] 117 -                 .into();
[INFO] [stdout] 116 +                 })?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 110 ~             let start = <T as Into<_>>::into(T::from_str(s)
[INFO] [stdout] 111 |                 .map_err(|_| {
[INFO] [stdout] ...
[INFO] [stdout] 115 |                     )
[INFO] [stdout] 116 ~                 })?);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `T` countrs
[INFO] [stdout]    --> src/lib.rs:118:23
[INFO] [stdout]     |
[INFO] [stdout] 118 |               let end = T::from_str(e)
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 119 | |                 .map_err(|_| {
[INFO] [stdout] 120 | |                     io::Error::new(
[INFO] [stdout] 121 | |                         io::ErrorKind::InvalidData,
[INFO] [stdout] ...   |
[INFO] [stdout] 124 | |                 })?
[INFO] [stdout] 125 | |                 .into();
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 124 -                 })?
[INFO] [stdout] 125 -                 .into();
[INFO] [stdout] 124 +                 })?;
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 118 ~             let end = <T as Into<_>>::into(T::from_str(e)
[INFO] [stdout] 119 |                 .map_err(|_| {
[INFO] [stdout] ...
[INFO] [stdout] 123 |                     )
[INFO] [stdout] 124 ~                 })?);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `countrs` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc", kill_on_drop: false }`
[INFO] [stdout] 5f4ac151fdc83f1e2fb954284172e6d79af8fdc1a7bfbf70cc27902a2ef4e2dc
