[INFO] fetching crate stringio 0.3.0...
[INFO] building stringio-0.3.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate stringio 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate stringio 0.3.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stringio 0.3.0
[INFO] finished tweaking crates.io crate stringio 0.3.0
[INFO] tweaked toml for crates.io crate stringio 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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 2 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d286a30b27d59834d05e02fb23b8e43f37d8724310753d89b4ce4b68eea9607b
[INFO] running `Command { std: "docker" "start" "-a" "d286a30b27d59834d05e02fb23b8e43f37d8724310753d89b4ce4b68eea9607b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d286a30b27d59834d05e02fb23b8e43f37d8724310753d89b4ce4b68eea9607b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d286a30b27d59834d05e02fb23b8e43f37d8724310753d89b4ce4b68eea9607b", kill_on_drop: false }`
[INFO] [stdout] d286a30b27d59834d05e02fb23b8e43f37d8724310753d89b4ce4b68eea9607b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65c39df61fed3e9d86d5e40c070fb0a10d3900367306982c466c90de361e3e90
[INFO] running `Command { std: "docker" "start" "-a" "65c39df61fed3e9d86d5e40c070fb0a10d3900367306982c466c90de361e3e90", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling stringio v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![warn(bare_trait_objects)]
[INFO] [stdout] 2   | | #![deny(missing_debug_implementations)]
[INFO] [stdout] 3   | | #![warn(missing_docs)]
[INFO] [stdout] ...   |
[INFO] [stdout] 122 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout] 3   | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod read;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod write;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/write.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a trait
[INFO] [stdout]   --> src/write.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub trait IntoStrWrite: io::Write {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     fn into_str_write(self) -> StrWriter<Self>
[INFO] [stdout] 82 | |     where
[INFO] [stdout] 83 | |         Self: Sized,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn str_writer_by_ref(&mut self) -> StrWriter<&mut Self> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/write.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn wrap(writer: W) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "65c39df61fed3e9d86d5e40c070fb0a10d3900367306982c466c90de361e3e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c39df61fed3e9d86d5e40c070fb0a10d3900367306982c466c90de361e3e90", kill_on_drop: false }`
[INFO] [stdout] 65c39df61fed3e9d86d5e40c070fb0a10d3900367306982c466c90de361e3e90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752088b4d2a732e4c02e40f310630b6400502a1eb9ce04ed881c786674c13ce3
[INFO] running `Command { std: "docker" "start" "-a" "752088b4d2a732e4c02e40f310630b6400502a1eb9ce04ed881c786674c13ce3", kill_on_drop: false }`
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![warn(bare_trait_objects)]
[INFO] [stdout] 2   | | #![deny(missing_debug_implementations)]
[INFO] [stdout] 3   | | #![warn(missing_docs)]
[INFO] [stdout] ...   |
[INFO] [stdout] 122 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout] 3   | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod read;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod write;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/write.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stringio v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for a trait
[INFO] [stdout]   --> src/write.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub trait IntoStrWrite: io::Write {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     fn into_str_write(self) -> StrWriter<Self>
[INFO] [stdout] 82 | |     where
[INFO] [stdout] 83 | |         Self: Sized,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn str_writer_by_ref(&mut self) -> StrWriter<&mut Self> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/write.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn wrap(writer: W) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![warn(bare_trait_objects)]
[INFO] [stdout] 2   | | #![deny(missing_debug_implementations)]
[INFO] [stdout] 3   | | #![warn(missing_docs)]
[INFO] [stdout] ...   |
[INFO] [stdout] 122 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout] 3   | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod read;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod write;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/write.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a trait
[INFO] [stdout]   --> src/write.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub trait IntoStrWrite: io::Write {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     fn into_str_write(self) -> StrWriter<Self>
[INFO] [stdout] 82 | |     where
[INFO] [stdout] 83 | |         Self: Sized,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]   --> src/write.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn str_writer_by_ref(&mut self) -> StrWriter<&mut Self> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/write.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn wrap(writer: W) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "752088b4d2a732e4c02e40f310630b6400502a1eb9ce04ed881c786674c13ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752088b4d2a732e4c02e40f310630b6400502a1eb9ce04ed881c786674c13ce3", kill_on_drop: false }`
[INFO] [stdout] 752088b4d2a732e4c02e40f310630b6400502a1eb9ce04ed881c786674c13ce3