[INFO] fetching crate mylogger 0.2.5...
[INFO] testing mylogger-0.2.5 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate mylogger 0.2.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mylogger 0.2.5 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mylogger 0.2.5
[INFO] finished tweaking crates.io crate mylogger 0.2.5
[INFO] tweaked toml for crates.io crate mylogger 0.2.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d345bc1c2a9bad7681eaacb7069c06a531fa05b43377b7af67ca2b3bcf408569
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d345bc1c2a9bad7681eaacb7069c06a531fa05b43377b7af67ca2b3bcf408569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d345bc1c2a9bad7681eaacb7069c06a531fa05b43377b7af67ca2b3bcf408569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d345bc1c2a9bad7681eaacb7069c06a531fa05b43377b7af67ca2b3bcf408569", kill_on_drop: false }`
[INFO] [stdout] d345bc1c2a9bad7681eaacb7069c06a531fa05b43377b7af67ca2b3bcf408569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fe002d588de853cb1e3247987683c939e5900e017cb55c1d95bc5c913a7c61af
[INFO] running `Command { std: "docker" "start" "-a" "fe002d588de853cb1e3247987683c939e5900e017cb55c1d95bc5c913a7c61af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mylogger v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `LevelFilter`, `RecordBuilder`, `info`
[INFO] [stdout]   --> src/lib.rs:84:11
[INFO] [stdout]    |
[INFO] [stdout] 84 | use log::{info, Level, LevelFilter, Log, Metadata, Record, RecordBuilder};
[INFO] [stdout]    |           ^^^^         ^^^^^^^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/lib.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]   --> src/lib.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | use tokio::runtime::Runtime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]    --> src/lib.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn activate(&self, meta: &Metadata) -> bool {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/lib.rs:157:19
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn log(&self, record: &Record, logger: &MyLogger) {}
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]    --> src/lib.rs:157:36
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn log(&self, record: &Record, logger: &MyLogger) {}
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]    --> src/lib.rs:158:29
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn format_record(&self, logger: &MyLogger, record: &Record) -> String {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]    --> src/lib.rs:130:23
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn enabled(&self, metadata: &Metadata) -> bool {
[INFO] [stdout]     |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "fe002d588de853cb1e3247987683c939e5900e017cb55c1d95bc5c913a7c61af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe002d588de853cb1e3247987683c939e5900e017cb55c1d95bc5c913a7c61af", kill_on_drop: false }`
[INFO] [stdout] fe002d588de853cb1e3247987683c939e5900e017cb55c1d95bc5c913a7c61af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cfac0d3c4b40a30b1d5fbf47c3eb35d35e96d2200a754c8f75beb4b8f8c33845
[INFO] running `Command { std: "docker" "start" "-a" "cfac0d3c4b40a30b1d5fbf47c3eb35d35e96d2200a754c8f75beb4b8f8c33845", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `LevelFilter`, `RecordBuilder`, `info`
[INFO] [stdout]   --> src/lib.rs:84:11
[INFO] [stdout]    |
[INFO] [stdout] 84 | use log::{info, Level, LevelFilter, Log, Metadata, Record, RecordBuilder};
[INFO] [stdout]    |           ^^^^         ^^^^^^^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/lib.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]   --> src/lib.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | use tokio::runtime::Runtime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mylogger v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]    --> src/lib.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn activate(&self, meta: &Metadata) -> bool {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/lib.rs:157:19
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn log(&self, record: &Record, logger: &MyLogger) {}
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]    --> src/lib.rs:157:36
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn log(&self, record: &Record, logger: &MyLogger) {}
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]    --> src/lib.rs:158:29
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn format_record(&self, logger: &MyLogger, record: &Record) -> String {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]    --> src/lib.rs:130:23
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn enabled(&self, metadata: &Metadata) -> bool {
[INFO] [stdout]     |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AsyncDefaultHandler`
[INFO] [stdout]   --> src/lib.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let async_handler = AsyncDefaultHandler::new(Level::Info, "async".to_string());
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ use of undeclared type `AsyncDefaultHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RecordBuilder`
[INFO] [stdout]   --> src/lib.rs:84:60
[INFO] [stdout]    |
[INFO] [stdout] 84 | use log::{info, Level, LevelFilter, Log, Metadata, Record, RecordBuilder};
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]   --> src/lib.rs:87:27
[INFO] [stdout]    |
[INFO] [stdout] 87 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]   --> src/lib.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | use tokio::runtime::Runtime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]    --> src/lib.rs:93:24
[INFO] [stdout]     |
[INFO] [stdout] 93  |     let mut mylogger = MyLogger::with_default_handler("mylogger");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------- supplied 1 argument
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        expected 2 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/lib.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn with_default_handler(name: &'static str, level: Level) -> MyLogger {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^ ------------------  ------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mylogger` due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cfac0d3c4b40a30b1d5fbf47c3eb35d35e96d2200a754c8f75beb4b8f8c33845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfac0d3c4b40a30b1d5fbf47c3eb35d35e96d2200a754c8f75beb4b8f8c33845", kill_on_drop: false }`
[INFO] [stdout] cfac0d3c4b40a30b1d5fbf47c3eb35d35e96d2200a754c8f75beb4b8f8c33845
