[INFO] fetching crate hashtag 1.0.1...
[INFO] checking hashtag-1.0.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate hashtag 1.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate hashtag 1.0.1 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashtag 1.0.1
[INFO] finished tweaking crates.io crate hashtag 1.0.1
[INFO] tweaked toml for crates.io crate hashtag 1.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate hashtag 1.0.1 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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd96665093abb96c8d5b0581b3973e5b6b63af293915ec02ed2e4b102fc9f929
[INFO] running `Command { std: "docker" "start" "-a" "dd96665093abb96c8d5b0581b3973e5b6b63af293915ec02ed2e4b102fc9f929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd96665093abb96c8d5b0581b3973e5b6b63af293915ec02ed2e4b102fc9f929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd96665093abb96c8d5b0581b3973e5b6b63af293915ec02ed2e4b102fc9f929", kill_on_drop: false }`
[INFO] [stdout] dd96665093abb96c8d5b0581b3973e5b6b63af293915ec02ed2e4b102fc9f929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3313a880ed450390571e4a373e263ac38c511d516a3acc9db8a160c1a325768
[INFO] running `Command { std: "docker" "start" "-a" "f3313a880ed450390571e4a373e263ac38c511d516a3acc9db8a160c1a325768", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking hashtag v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> tests/integration_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/integration_test.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `HashtagTest: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> tests/integration_test.rs:20:9
[INFO] [stdout]      |
[INFO] [stdout] 20   |         serde_json::from_str(&contents).expect("Failed to parse json");
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `HashtagTest`, which is required by `Vec<HashtagTest>: serde::de::Deserialize<'_>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]                bool
[INFO] [stdout]                char
[INFO] [stdout]                isize
[INFO] [stdout]                i8
[INFO] [stdout]                i16
[INFO] [stdout]                i32
[INFO] [stdout]                i64
[INFO] [stdout]                i128
[INFO] [stdout]              and 127 others
[INFO] [stdout]      = note: required for `Vec<HashtagTest>` to implement `serde::de::Deserialize<'_>`
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_json-1.0.62/src/de.rs:2584:8
[INFO] [stdout]      |
[INFO] [stdout] 2582 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2583 | where
[INFO] [stdout] 2584 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashtag` (test "integration_test") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f3313a880ed450390571e4a373e263ac38c511d516a3acc9db8a160c1a325768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3313a880ed450390571e4a373e263ac38c511d516a3acc9db8a160c1a325768", kill_on_drop: false }`
[INFO] [stdout] f3313a880ed450390571e4a373e263ac38c511d516a3acc9db8a160c1a325768
[INFO] checking hashtag-1.0.1 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate hashtag 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate hashtag 1.0.1 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashtag 1.0.1
[INFO] finished tweaking crates.io crate hashtag 1.0.1
[INFO] tweaked toml for crates.io crate hashtag 1.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate hashtag 1.0.1 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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22b71662d43d132ee808ea74bb247916d200e8de3be9740bf8309654bbc7c65c
[INFO] running `Command { std: "docker" "start" "-a" "22b71662d43d132ee808ea74bb247916d200e8de3be9740bf8309654bbc7c65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22b71662d43d132ee808ea74bb247916d200e8de3be9740bf8309654bbc7c65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b71662d43d132ee808ea74bb247916d200e8de3be9740bf8309654bbc7c65c", kill_on_drop: false }`
[INFO] [stdout] 22b71662d43d132ee808ea74bb247916d200e8de3be9740bf8309654bbc7c65c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66a61b32ae3b2fe6508ef7218e7a13504290134ab142c0f5cfad07a33f7e614
[INFO] running `Command { std: "docker" "start" "-a" "a66a61b32ae3b2fe6508ef7218e7a13504290134ab142c0f5cfad07a33f7e614", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking hashtag v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:270:50
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 Cow::Borrowed(&self.whole_string[self.hashtag_start_index + 1..idx + 1])
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     for _ in 0..strings_to_join {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let times: Vec<Duration> = (0..iterations)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let times: Vec<_> = (0..iterations)
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> tests/integration_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/integration_test.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     for _ in 0..strings_to_join {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let times: Vec<Duration> = (0..iterations)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/benchmark.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let times: Vec<_> = (0..iterations)
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:270:50
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 Cow::Borrowed(&self.whole_string[self.hashtag_start_index + 1..idx + 1])
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `HashtagTest: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> tests/integration_test.rs:20:9
[INFO] [stdout]      |
[INFO] [stdout] 20   |         serde_json::from_str(&contents).expect("Failed to parse json");
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `HashtagTest`, which is required by `Vec<HashtagTest>: serde::de::Deserialize<'_>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]                bool
[INFO] [stdout]                char
[INFO] [stdout]                isize
[INFO] [stdout]                i8
[INFO] [stdout]                i16
[INFO] [stdout]                i32
[INFO] [stdout]                i64
[INFO] [stdout]                i128
[INFO] [stdout]              and 127 others
[INFO] [stdout]      = note: required for `Vec<HashtagTest>` to implement `serde::de::Deserialize<'_>`
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_json-1.0.62/src/de.rs:2584:8
[INFO] [stdout]      |
[INFO] [stdout] 2582 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2583 | where
[INFO] [stdout] 2584 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashtag` (test "integration_test") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a66a61b32ae3b2fe6508ef7218e7a13504290134ab142c0f5cfad07a33f7e614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66a61b32ae3b2fe6508ef7218e7a13504290134ab142c0f5cfad07a33f7e614", kill_on_drop: false }`
[INFO] [stdout] a66a61b32ae3b2fe6508ef7218e7a13504290134ab142c0f5cfad07a33f7e614
