[INFO] cloning repository https://github.com/hawnzug/mal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawnzug/mal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 101d4a64034ae1b6df92d487f20410fdfe5520dc
[INFO] testing hawnzug/mal against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hawnzug/mal on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hawnzug/mal
[INFO] finished tweaking git repo https://github.com/hawnzug/mal
[INFO] tweaked toml for git repo https://github.com/hawnzug/mal written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/hawnzug/mal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30ed9ed8f1990f7c0b90052f7593e81e3e9f54c4eef6a1853a487228e3cd854d
[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" "30ed9ed8f1990f7c0b90052f7593e81e3e9f54c4eef6a1853a487228e3cd854d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30ed9ed8f1990f7c0b90052f7593e81e3e9f54c4eef6a1853a487228e3cd854d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ed9ed8f1990f7c0b90052f7593e81e3e9f54c4eef6a1853a487228e3cd854d", kill_on_drop: false }`
[INFO] [stdout] 30ed9ed8f1990f7c0b90052f7593e81e3e9f54c4eef6a1853a487228e3cd854d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 422b87a61e0115f024a6eb36bac92c87bb04c3a874198f4663f61e326886e08e
[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" "422b87a61e0115f024a6eb36bac92c87bb04c3a874198f4663f61e326886e08e", kill_on_drop: false }`
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling chomp v0.2.6
[INFO] [stderr]    Compiling practice_mal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |         35...38 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 112 |         60...64 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:113:11
[INFO] [stdout]     |
[INFO] [stdout] 113 |         94...95 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/steps/step5_tco.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String {
[INFO] [stdout]    |                                        ----^^^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/steps/step5_tco.rs:18:48
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn eval(orgast: MalType, orgenv: &mut Env, mut global: &mut Env) -> MalType {
[INFO] [stdout]    |                                                ----^^^^^^
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "422b87a61e0115f024a6eb36bac92c87bb04c3a874198f4663f61e326886e08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422b87a61e0115f024a6eb36bac92c87bb04c3a874198f4663f61e326886e08e", kill_on_drop: false }`
[INFO] [stdout] 422b87a61e0115f024a6eb36bac92c87bb04c3a874198f4663f61e326886e08e
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b615fcc927724ab635c7915d2e7745de5dfbb738745e478509c41ddeeaa067
[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" "60b615fcc927724ab635c7915d2e7745de5dfbb738745e478509c41ddeeaa067", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling practice_mal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |         35...38 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 112 |         60...64 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/reader.rs:113:11
[INFO] [stdout]     |
[INFO] [stdout] 113 |         94...95 => true,
[INFO] [stdout]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/steps/step5_tco.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String {
[INFO] [stdout]    |                                        ----^^^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/steps/step5_tco.rs:18:48
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn eval(orgast: MalType, orgenv: &mut Env, mut global: &mut Env) -> MalType {
[INFO] [stdout]    |                                                ----^^^^^^
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "60b615fcc927724ab635c7915d2e7745de5dfbb738745e478509c41ddeeaa067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b615fcc927724ab635c7915d2e7745de5dfbb738745e478509c41ddeeaa067", kill_on_drop: false }`
[INFO] [stdout] 60b615fcc927724ab635c7915d2e7745de5dfbb738745e478509c41ddeeaa067
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f88301040d495c08d468990de608612fe0bd954edd273bd054e62f1f6d8074d6
[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" "f88301040d495c08d468990de608612fe0bd954edd273bd054e62f1f6d8074d6", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/reader.rs:110:11
[INFO] [stderr]     |
[INFO] [stderr] 110 |         35...38 => true,
[INFO] [stderr]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/reader.rs:112:11
[INFO] [stderr]     |
[INFO] [stderr] 112 |         60...64 => true,
[INFO] [stderr]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/reader.rs:113:11
[INFO] [stderr]     |
[INFO] [stderr] 113 |         94...95 => true,
[INFO] [stderr]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/steps/step5_tco.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String {
[INFO] [stderr]    |                                        ----^^^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/steps/step5_tco.rs:18:48
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn eval(orgast: MalType, orgenv: &mut Env, mut global: &mut Env) -> MalType {
[INFO] [stderr]    |                                                ----^^^^^^
[INFO] [stderr]    |                                                |
[INFO] [stderr]    |                                                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/practice_mal-debf99b1f2a68cfd
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test reader::test_parse_int ... ok
[INFO] [stdout] test reader::test_to_malint ... ok
[INFO] [stdout] test reader::test_parse_list ... ok
[INFO] [stdout] test reader::test_read_str ... ok
[INFO] [stdout] test printer::test_pr_str ... ok
[INFO] [stdout] test reader::test_is_symbol ... ok
[INFO] [stdout] test reader::test_parse_atom ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f88301040d495c08d468990de608612fe0bd954edd273bd054e62f1f6d8074d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88301040d495c08d468990de608612fe0bd954edd273bd054e62f1f6d8074d6", kill_on_drop: false }`
[INFO] [stdout] f88301040d495c08d468990de608612fe0bd954edd273bd054e62f1f6d8074d6