[INFO] fetching crate serde_ltsv 0.1.0... [INFO] testing serde_ltsv-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8 [INFO] extracting crate serde_ltsv 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate serde_ltsv 0.1.0 [INFO] finished tweaking crates.io crate serde_ltsv 0.1.0 [INFO] tweaked toml for crates.io crate serde_ltsv 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serde_ltsv 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 11 packages to latest compatible versions [INFO] [stderr] Adding serde-value v0.6.0 (available: v0.7.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde-value v0.6.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c1bc746bc92f02616e652e3b56a90a9e7f5aad9e56a90cf244c7335ab3c35135 [INFO] running `Command { std: "docker" "start" "-a" "c1bc746bc92f02616e652e3b56a90a9e7f5aad9e56a90cf244c7335ab3c35135", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1bc746bc92f02616e652e3b56a90a9e7f5aad9e56a90cf244c7335ab3c35135", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1bc746bc92f02616e652e3b56a90a9e7f5aad9e56a90cf244c7335ab3c35135", kill_on_drop: false }` [INFO] [stdout] c1bc746bc92f02616e652e3b56a90a9e7f5aad9e56a90cf244c7335ab3c35135 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a40338a5c7f2cb933010137726bcc664f0ea6899e2ef5f470cbaadb43a4ea23b [INFO] running `Command { std: "docker" "start" "-a" "a40338a5c7f2cb933010137726bcc664f0ea6899e2ef5f470cbaadb43a4ea23b", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling ordered-float v1.1.1 [INFO] [stderr] Compiling serde-value v0.6.0 [INFO] [stderr] Compiling serde_ltsv v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s [INFO] running `Command { std: "docker" "inspect" "a40338a5c7f2cb933010137726bcc664f0ea6899e2ef5f470cbaadb43a4ea23b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a40338a5c7f2cb933010137726bcc664f0ea6899e2ef5f470cbaadb43a4ea23b", kill_on_drop: false }` [INFO] [stdout] a40338a5c7f2cb933010137726bcc664f0ea6899e2ef5f470cbaadb43a4ea23b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a6bafc4b7ba9b2ee4b2ef5cece9dc0c3cc60f50a0633021f1a588f6ff313e83f [INFO] running `Command { std: "docker" "start" "-a" "a6bafc4b7ba9b2ee4b2ef5cece9dc0c3cc60f50a0633021f1a588f6ff313e83f", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling serde_ltsv v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "a6bafc4b7ba9b2ee4b2ef5cece9dc0c3cc60f50a0633021f1a588f6ff313e83f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6bafc4b7ba9b2ee4b2ef5cece9dc0c3cc60f50a0633021f1a588f6ff313e83f", kill_on_drop: false }` [INFO] [stdout] a6bafc4b7ba9b2ee4b2ef5cece9dc0c3cc60f50a0633021f1a588f6ff313e83f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3c64d85a8b3f42819fb98a85410cd43f5315d92f0e42c41b47b292defddb49a7 [INFO] running `Command { std: "docker" "start" "-a" "3c64d85a8b3f42819fb98a85410cd43f5315d92f0e42c41b47b292defddb49a7", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_ltsv-d1f258241667bdb9) [INFO] [stdout] [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] [stderr] Doc-tests serde_ltsv [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - (line 26) ... FAILED [INFO] [stdout] test src/de.rs - de::from_str (line 28) ... FAILED [INFO] [stdout] test src/lib.rs - (line 9) ... FAILED [INFO] [stdout] test src/ser.rs - ser::to_string (line 93) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 26) stdout ---- [INFO] [stdout] error[E0463]: can't find crate for `serde_json` [INFO] [stdout] --> src/lib.rs:30:1 [INFO] [stdout] | [INFO] [stdout] 30 | extern crate serde_json; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `serde_yaml` [INFO] [stdout] --> src/lib.rs:31:1 [INFO] [stdout] | [INFO] [stdout] 31 | extern crate serde_yaml; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0463`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/de.rs - de::from_str (line 28) stdout ---- [INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope [INFO] [stdout] --> src/de.rs:30:10 [INFO] [stdout] | [INFO] [stdout] 30 | #[derive(Deserialize, Debug)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this derive macro [INFO] [stdout] | [INFO] [stdout] 27 + use serde_derive::Deserialize; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `Foo: serde::Deserialize<'de>` is not satisfied [INFO] [stdout] --> src/de.rs:37:16 [INFO] [stdout] | [INFO] [stdout] 37 | let foo: Foo = serde_ltsv::from_str(&line).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound [INFO] [stdout] | [INFO] [stdout] help: the trait `serde_core::de::Deserialize<'_>` is not implemented for `Foo` [INFO] [stdout] --> src/de.rs:31:1 [INFO] [stdout] | [INFO] [stdout] 31 | struct Foo { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `Foo` type [INFO] [stdout] = note: for types from other crates check whether the crate offers a `serde` feature flag [INFO] [stdout] = help: the following other types implement trait `serde_core::de::Deserialize<'de>`: [INFO] [stdout] &'a Path [INFO] [stdout] &'a [u8] [INFO] [stdout] &'a str [INFO] [stdout] () [INFO] [stdout] (T,) [INFO] [stdout] (T0, T1) [INFO] [stdout] (T0, T1, T2) [INFO] [stdout] (T0, T1, T2, T3) [INFO] [stdout] and 139 others [INFO] [stdout] note: required by a bound in `serde_ltsv::from_str` [INFO] [stdout] --> /opt/rustwide/workdir/src/de.rs:44:66 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn from_str<'a, T>(value: &'a str) -> LtsvResult where T: Deserialize<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ required by this bound in `from_str` [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - (line 9) stdout ---- [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:34 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:45 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:55 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:66 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:78 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:87 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:106 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:120 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:137 [INFO] [stdout] | [INFO] [stdout] 10 | ...er:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: value 2\tn3:v3\tmessage:this is a test [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: unknown start of token: \ [INFO] [stdout] --> src/lib.rs:10:144 [INFO] [stdout] | [INFO] [stdout] 10 | ...level:3\thost:testhostname\tname1:value1\tname 2: value 2\tn3:v3\tmessage:this is a test [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] error: expected one of `!` or `::`, found `:` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | time:[10/Oct/2000:13:55:36 -0700]\tdone:true\tscore:-1\tmean:0.42\tcounter:42\tlevel:3\thost:testhostname\tname1:value1\tname 2: val... [INFO] [stdout] | ^ expected one of `!` or `::` [INFO] [stdout] [INFO] [stdout] error: aborting due to 11 previous errors [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/ser.rs - ser::to_string (line 93) stdout ---- [INFO] [stdout] error: cannot find derive macro `Serialize` in this scope [INFO] [stdout] --> src/ser.rs:95:10 [INFO] [stdout] | [INFO] [stdout] 95 | #[derive(Serialize)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this derive macro [INFO] [stdout] | [INFO] [stdout] 92 + use serde_derive::Serialize; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `Foo: serde::Serialize` is not satisfied [INFO] [stdout] --> src/ser.rs:103:38 [INFO] [stdout] | [INFO] [stdout] 103 | println!("{}", serde_ltsv::to_string(&foo).unwrap()); [INFO] [stdout] | --------------------- ^^^^ unsatisfied trait bound [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] help: the trait `serde_core::ser::Serialize` is not implemented for `Foo` [INFO] [stdout] --> src/ser.rs:96:1 [INFO] [stdout] | [INFO] [stdout] 96 | struct Foo { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] = note: for local types consider adding `#[derive(serde::Serialize)]` to your `Foo` type [INFO] [stdout] = note: for types from other crates check whether the crate offers a `serde` feature flag [INFO] [stdout] = help: the following other types implement trait `serde_core::ser::Serialize`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] () [INFO] [stdout] (T,) [INFO] [stdout] (T0, T1) [INFO] [stdout] (T0, T1, T2) [INFO] [stdout] (T0, T1, T2, T3) [INFO] [stdout] (T0, T1, T2, T3, T4) [INFO] [stdout] and 127 others [INFO] [stdout] note: required by a bound in `serde_ltsv::to_string` [INFO] [stdout] --> /opt/rustwide/workdir/src/ser.rs:109:71 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn to_string(value: &T) -> LtsvResult where T: Serialize { [INFO] [stdout] | ^^^^^^^^^ required by this bound in `to_string` [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/de.rs - de::from_str (line 28) [INFO] [stdout] src/lib.rs - (line 26) [INFO] [stdout] src/lib.rs - (line 9) [INFO] [stdout] src/ser.rs - ser::to_string (line 93) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "3c64d85a8b3f42819fb98a85410cd43f5315d92f0e42c41b47b292defddb49a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c64d85a8b3f42819fb98a85410cd43f5315d92f0e42c41b47b292defddb49a7", kill_on_drop: false }` [INFO] [stdout] 3c64d85a8b3f42819fb98a85410cd43f5315d92f0e42c41b47b292defddb49a7